MAHENG/2012/47805 MAHENG/2012/47805
Vol 5 Issue 8 • Pages 56 • June 1, 2017 • `100/- • www.eprmagazine.com Vol 5 Issue 8 • Pages 56 • April 1, 2017 • `100/- • www.eprmagazine.com
Inside >>
Inside Switchgear industry in top gear
Improving power quality with T&M instruments
Boosting the power sector with turbines
IoT makes meters smart
Is Microgrid answer to rural India’s power woes?
Small Hydro, Big Opportunity
Solar PV: What lies ahead
Transmitting Transforming
therural rightIndia signals Opportunities for transformer industry out of rural electrification movement
/ENPREVIEW
/EPRmagazine
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EPR Magazine
editorial
A great nuclear leap forward Signalling its intent to fast-track domestic nuclear power programme and give a push to country’s nuclear industry, the Indian government has announced its plan to set up 10 indigenous Pressurised Heavy Water Reactors (PHWR). This ‘historic’ move is expected to augment India’s nuclear power by 7,000 MW. www.eprmagazine.com
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According to the Power Ministry, the new plants would create ` 70,000 crore worth of business for domestic manufacturers and generate more than 33,400 jobs in direct and indirect employment. The latest initiative will not only ensure self-sufficiency but also secures India’s position as a potential exporter. “With manufacturing orders to domestic industry, it will be a major step towards strengthening India’s credentials as a major nuclear manufacturing powerhouse,” Power Minister Piyush Goyal said. Industry leaders have welcomed this decision. Terming the move as ‘bold and historic’, SN Roy, Wholetime Director, Larsen & Toubro said, “This decision, which envisages an investment of around ` 1,05,000 crore is another step forward in the ‘Make in India’ initiative and will give a major boost to the Indian industry.” He adds that the decision will further enable Indian industry to mature to global standards and in the process develop and nurture Indian skill and talent in the nuclear sector. Sanjay Kirloskar, Chairman & Managing Director of Kirloskar Brother Limited said, “For a power-deficient country like India, this is a great development and we are looking forward to the implementation of this project. We are confident that the new indigenously-developed nuclear power plants will go a long way in reducing the perennial energy deficit that the country has been living with.” At present, India has installed nuclear power capacity of 6,780 MW from 22 operational plants. Another 6,700 MWs of nuclear power is expected to come on stream by 2021-22 through projects presently under construction. Setting up of 10 more PHWR with a generation capacity of 7,000 MW within five years will bring about a renewed vigour in the country’s power generation sector. In a country like India, where millions of people are yet to get access to electricity, nuclear power can be the answer. Hope you’ll enjoy reading this issue as always. Please do send me your comments at editor@eprmagazine.com. Also to stay updated, we invite you to check out our Twitter and Facebook pages.
Printed and published by Subhajit Roy on behalf of I-Tech Media Pvt Ltd. and printed at Print, Process Offset Printers, B-23, Royal Industrial Estate, 5-B, Wadala, Mumbai-400031 and published from I-Tech Media Pvt Ltd. 1, Gayatri, Karumari Amman, Chheda Nagar, Chembur (West), Mumbai - 400089. Editor: Subhajit Roy All rights reserved. While all efforts are made to ensure that the information published is correct, Electrical & Power Review holds no responsibility for any unlikely errors that might occur. The information on products and services / technology on offer is being provided for the reference of readers. However, readers are cautioned to make inquiries and take their decisions on purchase or investment after consulting experts on the subject. Electrical & Power Review holds no responsibility for any decision taken by readers on the basis of information provided herein. Tel.: +91-22-65556045/46, +91-9821667357
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june 2017
Electrical & Power Review
— A single window look at the world of power ABB serves utilities as well as industrial and commercial customers with products, systems and services for the generation, transmission and distribution of electricity. Turnkey solutions include power plant electrics and automation, bulk power transmission, substations and network management. The product offering across voltage levels, includes circuit breakers, switchgear, capacitors, instrument transformers, power, distribution and traction transformers as well as a complete range of medium voltage products. With a 125 year heritage of technology and innovation and a presence in over 100 countries, ABB continues to shape the grid of the future, by facilitating power capacity, enhancing reliability, improving energy efficiency and lowering environmental impact. For more information please visit us at www.abb.com
ABB India Contact Center | Toll Free Number: 1800 420 0707 | E-mail: contact.center@in.abb.com
14
Cover Story
Transmitting the right signals As outlook on the power T&D industry in India and major growth drivers
Exclusive
22
The truth behind India’s ‘net exporter’ status
India becomes net exporter of power for the first time. What’s the reality?
Tech View
38
Uncovering the invisible Why the integrity of the ground grid needs to be checked
Green Zone EPR PERSONALITY
24
“GST will push up solar power projects costs”
40
Small Hydro, Big Opportunity Analysing how small hydro projects bring big business opportunities
Interview of Shekhar Dutt, Director General, SPDA
Interview Special Report
26
Fix the leakage
42
Featuring advanced solutions that help in dealing with AT&C losses
Taking Wind Turbine Maintenance to Cloud Interview of Lokesh Saxena, VP - Industrial Business & Services, SKF India Ltd
Guest Column Industry Analysis
28 34 6
Improving power quality with T&M instruments Analysing increasing importance of T&M instruments in power quality monitoring
IoT makes meters smart
Analysis on IoT meter and its advantages
june 2017
46
Solar projects: No compromise on material and workmanship quality
08 12 48
Power Update Open Forum Power Brand
Electrical & Power Review
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POWER UPDATE ABB India expands footprint with service center for energy saving The ABB remote service center will provide 24x7 access to information and support on drives installed at customer facilities for predictive maintenance and condition monitoring for all industries including power, cement, oil and gas, metals, ABB Global Remote Service Center for digitally enabled food & beverage and many drives with ABB AbilityTM Condition Monitoring solution other applications. The new center is the third of its kind in the ABB global footprint and is now fully activated in India. It will support customer installations in India and around the world. In India, 31 per cent of total electrical energy is consumed by industrial motors. Drives control the speed of these motors and hence are a key component of enabling energy efficiency and improving productivity. Benefits of such a remote center include faster identification of potential problems leading to increased uptime of customer assets and ultimately savings in operational costs. “This is a reinforcement of our commitment to our nation and customers by establishing a world-class center using our expertise in digitally enabled technology,” said Sanjeev Sharma, CEO and Managing Director, ABB India. The new production line manufactures digitally enabled low voltage drives ACS560 and ACS580 series. The drive information in the cloud can be accessed securely with daily devices like smartphones. Drives are an environmentally friendly option to use energy efficiently while
running motors based on their current load instead of running them on full speed continuously. These drives provide multiple energy optimisation features, are easily commissioned via smartphone, and include features for uninterrupted operations during power fluctuations. “ACS560 has been developed in India for Indian customers, having user interface in Hindi and energy calculator in Indian Rupees. The new drive has application macros for industries like plastic, textile water and pharma, and unique icon based display for quick commissioning fulfilling the requests of Indian customers”, said Morten Wierod, Managing Director of ABB’s global Drives business unit.
India, China surpass US in renewable energy attractiveness index India and China have surpassed the US at the top of the latest EY Renewable energy country attractiveness index (RECAI). The fall – the first for the US since 2015 – to third in the ranking of the top 40 countries follows a marked shift in US policy under the new administration. India continued its upward trend in the index to second position with the Government’s program to build 175GW in renewable energy generation by 2022 and to have renewable energy account for 40 per cent of installed capacity by 2040. The country has added more than 10GW of solar capacity in the last three years – starting from a low base of 2.6GW in 2014. Ben Warren, EY Global Power & Utilities Corporate Finance Leader and RECAI Chief Editor, says “Movements in the index illustrate the influence of policy on renewable energy investment and development – both productive and detrimental. Supportive policy and a long-term vision are critical to achieving a clean energy future.”
Husqvarna launches Outdoor Power Products in India
Stephen Clark, Director, Product and Marketing, APAC Region, Glen Instone, Director, Global Sales and Service, Pavel Hajman, President, Husqvarna Division, Rajesh Raghavan, MD and Country Manager, India
Husqvarna, launched their array of outdoor power products and innovative solutions for forest, park and garden care in India. The Swedish brand which has already carved a niche in 100 countries for more than 325 years, offers a robust range of quality products that are best suited for Indian conditions.
Husqvarna aims to bring an ease of access to modern engineering and help in boosting the productivity with their diverse range of products. The Swedish brand has established an Indian entity based out of Chennai to cater to the needs of the sub-continent.
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june 2017
The brand comes in with a range of products from the global portfolio and is also evaluating the various solutions that can be offered to the Indian needs. Husqvarna India presently has a strong network of about 60 dealers in the country and this is expected to grow beyond 100 dealers by the end of 2017. “We have evaluated the market potential of India and believe in India being one of the fastest growing markets for us. Our products are especially engineered for tough market conditions like India, enabling users to handle sturdy jobs efficiently. We are coming in with handpicked products and are growing a network of dealers to make sure the right product reaches the right consumer at the right time,” said Rajesh Raghavan, Managing Director, Husqvarna India during the launch. India is one of the fastest growing markets and holds a tremendous growth potential. The estimated combined market size of the industry is ` 3000 crore. The company is expecting a market growth of around 10 per cent for premium hand held outdoor power tools over the next 3-5 years.
Electrical & Power Review
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POWER UPDATE Modi calls for setting up model solar cities Prime Minister Narendra Modi called for the setting up of some model solar cities in the country where the power requirement is fulfilled solely by solar energy. He made this proposal while reviewing the progress of key infrastructure sectors including petroleum and natural gas, power, renewable energy and housing. The review meeting, which came soon after the review of connectivityrelated infrastructure sectors in the last week of April, was attended by top officials from PMO, NITI Aayog and all infrastructure Ministries of the Government of India. The PM also emphasised that manufacturing of solar equipment should be given priority, to drive employment generation, and derive maximum benefit from the renewable energy drive. According to a PMO release, the total renewable generation capacity has crossed 57 GW, with an increase of 24.5 per cent being registered in 2016-17. The capacity addition in solar energy in 2017-18 was the highest-ever, at 81 per cent. Solar and wind tariffs have now achieved grid parity, with rates well below ` 4 per KwH.
NTL Lemnis launches high Watt Pharox Aura Retrofit LED bulb NTL Lemnis, the LED lighting solutions company, has added another innovative product “Pharox Aura Retrofit LED bulb (40W & 50W)” to its product portfolio. This innovative product is an ideal replacement of traditional lighting sources that are used in various places like retail shops and showrooms, commercial spaces and other high ceiling applications.
Pharox Aura Retrofit LED lamps can be replaced in the existing bulb holders without any hassle. Its elegant and robust design is suited to Indian power conditions. Aura’s mechanical design provides efficient thermal management thus enhancing the long life of product and the plastic enclosure is flame-retardant reducing the cause of fire in case of lamp failure. The lamp is backed by cutting edge electronics for safety and reliability.
CMI bags ` 36 cr order for supply of cables to GETCO CMI Limited, a BSE & NSE listed cable company, has been awarded an order worth ` 36.24 crore by Gujarat Energy Transmission Corporation Limited (GETCO) for supply of 66KV XLPE cables. The order is revenue accretive and will be delivered within two quarters of 2017-18. CMI Limited recently started commercial production at its newly acquired facility at Baddi, Himachal Pradesh, which was a subsidiary of General Cable Corporation, a fortune 500 company. The cables for the new order will also be manufactured at the new facility. Amit Jain, CMD, CMI limited said, “We are becoming a preferred partner for wires and cables for the utilities, including the power sector covering both transmission and distribution. Currently over 12 per cent of our total revenues come from the power sector and we expect that around 15 per cent of our revenues by 2019 will be from the segment. Our latest order from GETCO is another feather in our cap and we are going from strength to strength here.”
Siemens digital solutions to connect Vedanta power plants in India Siemens Limited has announced that it has secured an order for Digital Fleet Center solution from Vedanta Limited, India’s natural resources company, to connect its power plant assets at Talwandi Sabo Power Plant (TSPL) in Punjab and Bharat Aluminium Company Limited (BALCO) in Chhattisgarh. Digitally linking these critical power units to Vedanta’s monitoring station will serve to analyse huge amounts of fleet data for continuous monitoring and diagnostics of these assets. Siemens claimed “This will enable proactive maintenance to help reduce unplanned outages, thereby, optimising costs and increasing availability of Vedanta’s power assets.” Siemens will also initially provide three years of maintenance and service support to help ensure continued reliability and operational performance. As an established global leader in the advancement of digitalisation across a wide variety of industries, Siemens
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has developed comprehensive Digital Fleet Center solutions that enable power plant fleet operators to seamlessly connect their power generation assets turbines, generators, boilers and balance of plants, and leverage the power of vast amount of data generated by these machines. Prashant Jain, Head, Power Generation Services, Siemens Limited, said, “As a provider of integrated digitalisation solutions across the production value chain, Siemens is delighted to partner Vedanta in its continuous journey of modernisation of its power assets across India. Digitalisation has a huge role to play in India’s demand for reliable, efficient and clean power, due to the increasing urbanisation and industrialisation. We look forward to this and future collaborative opportunities that will contribute to India’s sustainable progress”
Electrical & Power Review
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OPEN FORUM Govt announced second round wind auction for 1,000 MW. Given the ambitious capacity addition target, will it be adequate?
The
the
Second round of 1GW wind capacity
The move by the union government is
renewable energy sector seems to be
government’s
target
for
auction was launched by the Ministry of
positive but a strong buy in from the
really good and quite progressive. So
New and Renewable Energy (MNRE) in the
states is critical to the success of the
far, the country has installed about
beginning of this month. Simultaneously
auction.
28 GW of wind-power farms.
Power Trading Corporation and the
the non-windy states meet its RPO
push for clean energy solutions is also
electricity
obligations. I am confident that such steps
encouraging since the country has
(discoms)
the
will accelerate wind capacity addition in
some of the largest polluted cities. As
agreement for completion of the first
the country and will help the industry
the energy sector grows, increased
auction that was held in February this
to achieve the government’s renewable
investment in cleaner energy sources
year. Five companies that won the rights
energy target. However the government
could help combat India’s pollution
to set up 1.05 GW of wind power and to
should consider a state-wise bidding for
problem by reducing the country’s
sell their electricity to PTC can execute
the recently announced 1,000 MW to
dependence on fossil fuels. India’s wind
the project now. Re-discovered process
avoid high cost of land and increase in
energy sector witnessed unprecedented
to buy wind power at a lowest price may
logistics cost.
acceleration since last 3 years, propelled
help government to enforce renewable
by technology and encouraging policy
purchase obligation (RPO) across all
Tulsi Tanti,
environment for renewable by the
the states as mandated by the law.
Chairman and Managing Director,
government.
Wind power industry is enthused by the
Suzlon Energy Ltd
India’s
distribution of
six
states
companies signed
The auction will ensure that
announcement of the auctions, however Wind OEMs are increasingly getting
apprehensions about achievement of the
familiar with component performance
business feasibility at such low wind tariff
trends,
is still under question.
seal
compatibility
issues,
filtration challenges and basis of the new compliance of IEC 81400-4. At
Dr Sanjiv Kawishwar,
Shell Lubricants, technology leadership
Sr. Vice President,
is about excelling in three key areas:
ReGen Powertech Pvt Ltd
technology
innovation,
technology
application and technology partnerships. We will ensure that we continue to offer
India will soon bar Chinese power companies from projects in the power sector. How do you look at this?
the most promising value proposition for wind sector through our innovative products and superior technical services. Akhil Jha, Chief Technology Officer, Shell Lubricants India
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June 2017
To share your views write at editor@eprmagazine.com
Electrical & Power Review
Cover Story
Transmitting the right signals
As outlook on the power T&D industry in India and major growth drivers
T
he Indian electrical equipment industry comprises of two broad segments – generation equipment and transmission and distribution (T&D) and allied equipment. The generation equipment sector stands for around 28 per cent while the T&D equipment sector accounts for close to 72 per cent of the total industry size.
transmission networks. A capital expenditure of ` 2.6 trillion (` 1.0 trillion in substation and ` 1.6 trillion in transmission lines) is foreseen in transmission and distribution sector during the 13th Five -Year Plan. In terms of volume 62,800 ckm of transmission lines and 128,000 MVA of transformation capacity will be needed during this period.
Power-evacuation constraints and high T&D losses have attracted the attention of policymakers for more investment in transmission infrastructure to match the investment in power generation. The outlook for the transmission sector for the next 5-7 years is bright, forecasts Sharan Bansal, Director, Skipper Ltd. He said, “The growth trajectory of the transmission industry is based on the facts such as increased emphasis on the grid reliability, decentralisation of the power generation due to increased focus on the renewable apart from the fossil fuel, and the increase in load centres arising from the urbanisation and major thrust on rural electrification.”
The estimated private sector investments in T&D is expected to reach ` 3 trillion by 2019 including government support of ` 1 trillion through Deen Dayal Upadhyay Gram Jyoti Yojana (DDUGVY) and the Integrated Power Development Scheme (IPDS).
India’s transmission network capacity has been lagging power-generation capacity. To counter this, dedicated efforts are being made by the government to improve India’s
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june 2017
Bansal observes, “There will be more opportunities for private players in the sector, since there are growing incidences of electricity shortage due to inabilities to evacuate excess power from production surplus states.” For example, in Chhattisgarh generation capacity is more than 30,000 MW and peak demand is 3,300 MW while just 7,000 MW transmission capacity for power evacuation. Dr. Katsutoshi Toda, Managing Director, Toshiba Transmission & Distribution India Pvt Ltd believes that India will continue to invest Electrical & Power Review
Cover Story
The changing requirements of the transmission system are driving technology developments in the area. Sharan Bansal, Director, Skipper Ltd
in T&D infrastructure to fulfil the dream of delivering 24x7 ‘Power to All’ and there is already a significant amount of investments in this area. He adds, “A lot of smart technologies are being deployed to ensure that the traditional thermal generation, the transmission and also the intermittent renewable in different parts of the country can be integrated into the grid. A lot of smart technologies are being deployed and we are seeing a good uptick there.” At the end of 12th Five -Year Plan, 42 per cent growth in the transmission line capacity addition is expected and 69 per cent in the substation capacity. By the end of 12th FiveYear Plan it is expected that the national grid inter regional power transfer capacity will be 72,250 MW. The government is also targeting to bring down T&D losses in the power sector to 15 per cent by 2019 from over 20 per cent currently. Such severe electricity losses during the T&D process affect the country’s economic growth adversely, which is why India requires infusion of large amount of capital and modern technology into the Indian power T&D sector. The government is focusing more on T&D sector especially in the smart grid and ultra high voltage segment. “We believe power saved is power generated and we are constantly undertaking our role in reducing the losses. Backed by Toshiba Group’s superior technology and lineage of over 100 years in T&D, TTDI aims to supply integrated solutions
India is already self-sufficient in terms of energy generation and is contributing to the export of power to neighbouring countries which is opening up huge potential in the T&D sector. Dr. Katsutoshi Toda, Managing Director, Toshiba Transmission & Distribution India Pvt. Ltd
Electrical & Power Review
in the T&D sector by bringing in new technologies like Gas Insulated Switchgear, Solid Insulated Switchgear and Gas Insulated Transformers and solutions like underground substation installations that can be custom-engineered as per the project plan and requirement. Our systems effectively contribute to the T&D sector, in order to deliver reliable electricity from power plants to factories, transportation systems and even our homes,” says Toda. While sharing his views on the power T&D industry in India, Harish Agarwal, CEO, Supreme & Co Pvt Ltd says, “In the context of discoms, the Ujwal Discom Assurance Yojana (UDAY) already has 27 member states that are ushering in operational and financial efficiency within their discoms. Aggregate technical and Commercial Losses (AT&C) have come down from 24 per cent in FY16 to 22 per cent by April this year. The gap between the average cost of supply (ACS) and average revenue realised per unit sale came down to ` 0.4 per unit by December last year from ` 0.56 per unit in March the same year.” Agarwal adds, “Although total sales of the industry in FY16 grew up by around 1 per cent from FY15, industry seemed to have squeezed their margins on account of low priced imports and tough competition in global market. In order to utilise its capacities which were hit by imports, industry depressed their prices and simultaneously increased exports
Power sector boasts of a diversified, matured and strong manufacturing base backed by a robust supply chain. Harish Agarwal, CEO, Supreme & Co. Pvt. Ltd
(where also benefit was not high). Decline in PBT was therefore, inevitable; the same decreased by around 22 per cent from FY15 to 16. Based on established accounting standards, health of the industry can said to be ‘Good’, but significant potential of this industry still remains untapped. Also, industry needs to gear up in order to capture increasing global market.” Such growth in power sector will entail exponential demand for electrical equipment, believes Agarwal. The government’s mission is to develop existing power infrastructure by 2019 to help reach power to even the remotest part of rural places. It is not only taking major steps june 2017
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Investments upto figures of ` 2.5 lakh crore in T&D sector is planned to strengthen the network.
Santosh Patil, Business Head Solar, Ganges Internationale Pvt Ltd
to generate electricity through renewable sources but also strengthening the T&D network. “Initiatives such as UDAY and others for financial turnaround of power distribution companies is supporting to overcome any financial burden and to help in developing good transmission network. Investments upto figures of ` 2.5 lakh crore in T&D sector is planned to strengthen the network,” says Santosh Patil, Business Head Solar, Ganges Internationale Pvt Ltd. He adds, “Major investment in transmission is expected in the southern region with increase in renewable energy installations followed by the Northern and Western region. In the distribution sector, the Western region is expected to receive highest investments followed by the southern, northern and eastern region. Power transmission is considered as important as power generation in India.” Major growth drivers The power sector globally for the next few years will be very demanding because of the rising energy demand in developed and developing markets. The T&D sector globally is expected to attract investment of $1 trillion over next 5-7 years. Indian power sector is witnessing massive transformation in terms of implementation of policy, technology upgradation and investments in the renewable sectors to harness the potential of natural sources of energy. “India is already self-sufficient in terms of energy generation and is contributing to the export of power to neighbouring countries which is opening up huge potential in the T&D sector. Power Ministry with the state discoms has been driving very effectively the implementation of IPDS/ DDUGVY schemes which has opened up opportunities in the distribution sector,” informs Toda. “Power sector reforms, policies and investments to meet the energy demand are the major growth drivers,” states Toda. He adds, “New policies like UDAY, Open Access, Tariff Based Competitive Bidding (TBCB), focus on the renewable sectors, smart grid projects and other infrastructure growth plans especially the proposed thrust by government in railways will also drive the electrical equipment industry in the near future.”
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With the ‘Make in India’ thrust, the manufacturing sector will see huge opportunities in new technology development, building up manufacturing base to cater to the global markets and claim global leadership. This needs manufacturing sector to develop high quality process and norms which shall meet the global standard to make the grid reliable, safe and affordable. TTDI is positioning to address the above markets by offering complete products and solutions which are energy efficient and highly reliable to the grid. In line with its ‘Make in India and Export from India’ commitment, the company made a 3-billion Yen investment (approximately $ 30-million) in 2016. It also boosted production capacity for transformers by 50 per cent by setting up a new manufacturing line for Ultra High Voltage transformers up to 1,200 kV and improving manufacturing and operational efficiency of distribution transformers. In the field of switchgears also, the company established a new line for production of Gas Insulated Switchgears (GIS) and Solid Insulated Switchgears (SIS). This expansion allowed TTDI to meet the growing demand in India and in countries across the world. With the government’s ambitious plans to install 100 GW of solar power capacity by 2022 and 10 GW of wind power every year, evacuation of this power will be a challenge. Realising this, the central transmission utility, Power Grid Corporation of India (PGCIL), is developing nine high capacity green transmission corridors. The government has also announced a Desert Power Plan, which outlines the transmission capacity needed to evacuate solar and wind power from the desert regions of India by 2050. India is planning to construct several crossborder interconnections with its neighbouring countries to boost power trade. These links are part of the country’s larger plan of creating an integrated SAARC power market. Four new interconnections – one each with Bhutan and Sri Lanka and two with Nepal – are either under way or at the planning stage. “The changing requirements of the transmission system are driving technology developments in the area. High performance conductors (HPCs) are already being used, while R&D is being carried out on superconducting cables. Towers are being designed to lower RoW requirements. FACTS and HVDC transmission technologies are offering increased flexibility in meeting transmission challenges. It is estimated that in excess of `2 lakh crore has to be invested into transmission capacity building,” informs Bansal. Agarwal highlights few major growth drivers as: • Capacity creation in sectors such as infrastructure, power, Electrical & Power Review
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• •
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mining, oil and gas, refinery, steel, automotive and consumer durables are driving demand in the engineering sector. Nuclear capacity expansion will provide significant business opportunities to the electrical machinery industry. A comparative advantage in terms of manufacturing costs market knowledge, technology and creativity Key market drive supply side is energy efficiency. Innovative solutions like product retrofitting and online condition monitoring. While on the demand side it is power development programme – thrust on skill development, minimise power theft, and export opportunities. Government should encourage only domestic industry participation as regards tenders for domestically funded projects Price preference to domestic manufacturers should be given in ICBs Testing of equipment from a foreign supplier be mandatorily done in Indian laboratories Minimum procurement by any utility should be of ‘Made in India’ products More funds for R&D Export incentive to 100 per cent ‘Made in India’ products.
According to Patil, a few of several growth drivers which are helping in growing the T&D sector in India include:
• Increase in Industrial activities: India is moving towards to become global manufacturing hub with investments seen across in various industries and their value chains • Increasing power penetration to semi rural places and increase in per capita consumption • Growing middle class and consumer base • Strong policy support and strict guidelines • Increasing government focus on infrastructure. Excelling in global level Power is a scarce commodity and a large part of the globe still faces shortage of power. With rapid urbanisation and industrialisation, the demand for power is growing day by day necessitating substantial investments in power generation and T&D infrastructure. Despite several improvements in power infrastructure, around 17 per cent of the world population is still without access to electricity. Global transmission towers market has grown historically and is set for a strong growth in the future as well. According to World Energy Outlook (WEO) 2015, a total of $19.7 trillion investments are expected to flow in the power sector between 2015 and 2040, averaging $760 billion per year. The global electric power transmission network is set to expand from 5.5 million circuit kilometres (ckm) of high voltage transmission lines in 2014 to 6.8 million ckm by 2020, representing a CAGR of 3 per cent.
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Cover Story Bansal believes, in order to succeed in the rapidly evolving global manufacturing landscape, Indian companies will need to embrace a targeted approach to some of the key elements of manufacturing competitiveness, including: • Embracing advanced technologies to drive competitive advantage: Advanced technologies are increasingly underpinning global manufacturing competitiveness. The 21st century manufacturers have to fully converge the digital and physical worlds where advanced hardware has to be combined with advanced software, sensors, and massive amounts of data and analytics to result in manufacturing excellence. • Develop a balanced approach across the global enterprise: Increasingly sophisticated tools and strategies will be required to optimise the global manufacturing enterprise from a talent, technology, operational, financial, tax and regulatory perspective. The core of this approach is achieving a successful balance across a variety of drivers, including talent management, innovation investments, portfolio optimisation, cost competitiveness, manufacturing footprint, and supply chain in challenging and rapidly evolving new markets. • Leverage on strengths of ecosystem partnerships beyond traditional boundaries: Adoption of innovation strategies aimed at embracing a broader ecosystem approach, developing and taking advantage of integrated manufacturing and technology clusters and partners, will be a growing imperative going forward. Competitiveness will be directly correlated to the strength and robustness of an organisation’s collaborative networks and ecosystems. • Talent retention: A focus on creating differentiated talent acquisition, development and retention strategies to be regarded as ‘employers of choice,’ as well as identifying and nurturing new models of collaboration that leverage key sources of talent outside of the organisation will be key. In FY17, India, for the first time in history, became a powersurplus country, leaving behind a historical legacy of increasing power deficit. In the April-February period of the current fiscal, it exported around 5,798 MU to Nepal, Bangladesh, and Myanmar. As per the Central Electricity Authority, India is likely to end FY17 with 1.1 per cent excess electricity supplies.
Explaining how Indian manufacturers will excel in global level and grab this opportunity Toda says, “Quality, longevity and sustainability of products remain the cornerstones of competing in a global landscape. Our endeavour to manufacture and supply superior quality products that are made in India has resulted in securing many overseas orders from Finland, Kenya, and Bangladesh.” TTDI also signed a MoU with Kenya Power to help curb T&D losses in Kenya’s national grid. From product assembly, to fabrication, oil purification and conductor, most of the parts and materials are manufactured in TTDI’s factory that make its products cost effective with greater quality control and also ensure quick delivery. He adds, “In our endeavour to improve quality and productivity through technology transfers from Japan and continuous Kaizen (improvement) activity, we have manufactured amorphous core distribution transformers that can limit transmission losses at a low load factor contributing to efficient power transmission.” The technology up gradation and Government of India drive to reduce the T&D losses has resulted in innovation and adoption of latest manufacturing practices by the manufacturers which is resulting in producing very high quality and reliable products making it at par with global players thereby opening up huge opportunities for the global markets, observes Toda. TTDI has emerged as the global production hub of Toshiba’s T&D business to cater to product and component requirements across the world. By manufacturing and supplying eco-friendly, world class and innovative products, the company will export to global markets and contribute to the growth of industries for the next India. Patil said, “Demand for power installations in the T&D network is quite huge and tremendously increasing. With growing focus of GOI on delivering efficient and better power network including smart cities, Indian manufacturers are adapting themselves with advance technologies to produce better products suitable for harsher Indian environment. I feel this experience will advance them to grab global opportunities.”
“Power sector boasts of a diversified, matured and strong manufacturing base backed by a robust supply chain. Rugged performance design of equipment to meet tough network demand and presence of major foreign players, either directly or through technical collaborations with Indian manufacturers is a testimony of unique advantages India holds in this sector,” says Agarwal.
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Electrical & Power Review
Exclusive
The truth behind India’s ‘net exporter’ status India becomes net exporter of power for the first time. What’s the reality?
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f late, India has been tagged as the ‘net exporter’ of electricity for the first time. As per Central Electricity Authority (CEA), the designated authority of government of India for cross border trade of electricity, during April to February this year, India has exported around 5,798 million units to Nepal, Bangladesh and Myanmar which is 213 million units more than the import of around 5,585 million units from Bhutan, India’s Power Ministry said in a statement. Export to Nepal and Bangladesh increased 2.5 and 2.8 times respectively in the last three years. Lighting home For years, a major population of rural India was deprived of electricity. The government’s ambitious Deen Dayal Upadhyay Gram Jyoti Yojna has taken several steps to bring rural India out of darkness. According to a power ministry report, there were 18,452 un-electrified villages when the current government assumed power. Out of this 13,469 villages have been electrified as of as of 18th May. Empowering neighbours Cross border trade of electricity was started in mid-80s and India has been importing power from Bhutan and exporting to Nepal from Bihar as well as Uttar Pradesh. More cross border links are in pipeline and that will further increase the export of electricity. “Export will be further enhanced after commissioning of one more cross border interconnection between Surjyamaninagar (Tripura) in India and South Comilla
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in Bangladesh. Currently approximately 600 MW power is being exported to Bangladesh,” informs Dr Sanjiv Kawishwar, Sr. Vice President, ReGen Powertech. The Reality India’s sustained efforts of taking electricity to its neighbouring countries are laudable. The country has been able to achieve this feat due to heavy investment on generation infrastructure over the past few years. Also, a massive surge in the domestic supply of raw materials like coal in the past two years has also helped power companies boost output. However, ‘net exporter’ doesn’t mean India has surplus power to export after meeting its domestic requirement – it means the country’s export volume of electricity is larger than the imported ones. As per the information available in Deen Dayal Upadhyaya Gram Jyoti Yojana website, out of 597,464 census villages, 593,479 villages as of 25th May. Again, there are many households yet to get electricity connection within the ‘electrified’ villages as a village is deemed electrified if at least 10 per cent of total households are electrified. Rajesh Nandwani, VP and Business Unit Head– Switchgear, Anchor Electricals Pvt Ltd points out, “The reality remains that even today, 35 per cent of rural India has no access to the grid electricity. While the renewable energy is expected to bring a difference here, the fact remains that the nation still faces a power-deficit and we have to aim to bridge this gap first and make the country selfreliant, prior to exporting power.” Electrical & Power Review
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Most of the Indian companies took the initial risks and backed the government’s solar mission by investments made in solar sector and demonstrated the growth potential -Shekhar Dutt, Director General, SPDA
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ndian solar power sector has seen enormous growth during the past few years. Shekhar Dutt, Director General, Solar Power Developers Association (SPDA) gives an overview of the current solar power market in India. He also talks about the probable impacts of GST on solar power projects. What is your assessment of the current solar power market in India? The national target of 100 GW solar by 2022 and further plan of taking it up to 250 GW as part of Government of India’s commitment to have 40 per cent generation from renewable energy sources by 2030 (In COP21) has made India a hub of solar market in the world. Sector has seen enormous growth by reaching 10 GW operational in last 3-4 years and approximately similar capacity is under execution to be commissioned during this year. It is an interesting fact that, most of the Indian companies took the initial risks and backed the government’s solar mission by investments made in solar sector and demonstrated the growth potential. As a result, the market is now seeing great interest from investors and utilities from various parts of the world entering to solar market in India. Post allocation of 17-18 GW projects until last year, currently the market is facing inconsistency to maintain the similar pace of allocation and if this gap continues long, it may affect the investor’s interest and ultimately
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the target of 100 GW. Based on our member’s feedback, SPDA has also raised this concern with Ministry at various forums. Solar tariff has become highly competitive. Wouldn’t such low tariffs impact on solar power producers ‘profitability? With such a large participation from domestic and international players, the competitiveness has increased at its highest level. The way tariffs are falling critically as low as sub ` 3/Kwh (recent bids in Rajasthan) would have surely constrained the investor’s expectations on returns in a short run but the factors like adapting best performing technologies and scaling the capacity to multi GWs will have a balancing strength in long run for solar power producers. However, tariffs are an output of multiple assumptions and certain risks being taken by investors. It will be interesting to see how lenders perceive these trends of tariffs falling down continuously. Do you expect that the tariff can fall further? Every bid has its own dynamics and features to attract participation and discover its tariff. In the past few bids, assumptions related to imported module prices falling down even lesser than 30 cents/Wp considered to be major factor of bidders quoting lowest
“GST will push up solar power projects costs” ever tariffs. However, the recent release of GST rates (drafts) have created a big concern among the industry player as the items being imported under HS code 8541(PV cells, whether or not assembled in the modules or made up into panels) have been specifically kept at 18 per cent. Solar modules are currently being imported under same HS code at nil duty. There will be a major impact on project cost if these rates are going to be final and may also affect the falling trends of tariffs in upcoming bids. The volatility in the rupee and dollar exchange rate also is a factor to be considered. Can competitive pricing be a major hurdle in achieving 100 GW solar target? There has to be an integrated focus in terms of generating regular demands from states, maintaining the consistent pipeline for investors to plan better, protecting the investments from payment risks and resolving the challenges like curtailment for solar power generation, which would be required to achieve 100 GW mission successfully. It will be a challenge to maintain the balance between low cost and better performance in terms of quality to run these plants for next 25 years. However, if the focus remains just on competitive pricing and not the overall aspects of the sustainable implementation, that may not give the optimal support to the mission in long run. Electrical & Power Review
Special Report
Fix the leakage Featuring advanced solutions that help in dealing with AT&C losses
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ower generation, transmission and distribution are the three activities in power industry. Energy is consumed and loss is incurred in every step of these activities. Among the three activities, a loss in power distribution is the maximum as it has grown up in an unplanned manner. The parameters of aggregate technical and commercial (AT&C) loss, that provides a realistic picture of energy and revenue loss situation, consist of two parts that is technical loss and commercial loss. Technical loss depends upon losses incurred from machinery (transformers), lines and improper maintenance of plant and machinery etc. However, under commercial loss, theft is one of the main causes of the high losses. Theft occurs in several ways like namely by tapping transmission lines and tampering by passing meter. Dr Sanjiv Kawishwar, Sr. Vice President, ReGen Powertech outlines the various aspects of distribution loses as: • Theft of electricity means unlawful usage of electricity by individual or industry or commercial premises. • Due to unaccounted consumption of electricity by various entities, India loses billions of rupees because it becomes unbilled consumption. • Non-payment of bills is
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another type of loss incurred by the electricity supply companies and boards and it is estimated that only half the revenue is realised. • Power theft losses are also termed as commercial losses that are difficult to estimate but run into huge amounts. • It is evident that electricity theft occurs across domestic users commercial users and industrial segments in rural areas and also in large cities. • Mostly the electricity is stolen by tapping it from live wires that also poses life risks. The scope of AT&C loses in a developing country like India is very high – ranging from 11 to 71 per cent across States. However, putting corrective measures in place will help to curb it. Commercial losses contribute to maximum percentage and this can be corrected with better billing and collection efficiency. However electricity theft is an important aspect to be plugged. Commenting on advanced solutions for power theft loss detection, Anil Kadam, Senior Manager – Solution Architect (Utilities), Schneider Electric, India said, “Smart gird technologies bring in various solutions like online energy audit and big data pattern recognition to help reduce AT&C losses
due to electricity theft. Technical losses can be reduced by implementing with increased operational efficiencies using advanced distribution management systems and of course with low loss equipment.” Dr Kawishwar also highlights some of the advanced solution for power theft loss detection: • Use of smart meter is one of the most effective ways to prevent electricity theft. Smart meter is used to measure electricity remotely and can switch the power supply off for individual appliances based on demand response. It can remotely control electricity consumption to maximize energy efficiency and load balancing. • Smart Grid refers to a network of transmission lines, substations, transformers and more that deliver electricity from the power plant to consumer with improved security measures from theft and safety. • Electricity theft detection using GSM is a smart preventive means. Most common way of theft is bypassing the meter using a piece of wire, people simply bypasses the electricity meter by placing a wire before and after the meter. Hidden GSM system sends a SMS to electricity board as soon as an attempt is made for the theft. Electrical & Power Review
Industry Analysis
Improving power quality with T&M instruments Analysing increasing importance of T&M instruments in power quality monitoring
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oor power quality can cause huge loss to the electrical devices, disrupts the operations and sometimes all these drawbacks can also result in hesitation to invest heavily on instruments. Hence to meet the power quality standards there is increasing importance of T&M instruments in power quality management. Monitoring of power quality and checking the consumptions is very crucial so as to know what is going in system, whether devices are operating on desired inputs or are getting some poor quality power damaging the devices. Decent power quality and uninterrupted power are extremely important goals at many types of set-ups, ranging from manufacturing plants, commercial and government buildings to data centres, healthcare centres. When it comes to reliability of power in a set-up, foresight is a lot better than hindsight. Poor power quality can cause damage to costly electrical equipment, reduce productivity, and – if severe enough – disrupt daily operations. Variations in power quality can result from voltage spikes, swells, and sags; harmonic disturbances; and short and long interruptions of power lasting from a few milliseconds to over two seconds as well as fast switching devices. And any of these events can occur at any time. Even it is compulsory to maintain the power factor unity as per rules. If it is not maintained unity, there will be a fine charged
by SEB (State Electricity Board). Vishwadeep Nanda, Product Manager, Test & Measurement Instruments, Rishabh Instruments, says, “Day-by-day the importance of T&M instruments in power quality monitoring is increasing as it is required to know what is the quality of power and ongoing loads consumption. T&M instruments play a vital role in knowing the same.” Explaining his views upon the increasing importance of T&M instruments in power quality monitoring Avichal Kulshrestha, Staff Technical Marketing Engineer, National Instruments says, “Gathering reliable, realtime data from all areas of the grid is critical to identifying problems early and preventing power disruptions. To keep the grid running consistently, operators must be able to gather data from a wide range of measurements and quickly gain insight from that data to monitor the overall health of the grid.” The modern grid comes with new engineering challenges. As renewable energy resources are being used to supplement fossil fuel production, power quality issues are surfacing. Combine this with the rapidly increasing demand for energy and the decommissioning of fossil fuel plants, and grid operators are finding that traditional measurement systems do not offer adequate coverage to handle these new challenges and manage the new Continued to 30
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Industry Analysis Improving power quality with T&M instruments 28 f
The importance of T&M instruments in power quality monitoring is increasing as it is required to know what is the quality of power and ongoing loads consumption. Vishwadeep Nanda, Product Manager, Test & Measurement Instruments, Rishabh Instruments
risks the industry faces. With an open, flexible, softwaredesigned instrument, engineers can customise the information available for grid operation and easily make upgrades as needs change. This approach improves grid monitoring and reliability while reducing the amount of equipment needed. Kulshrestha adds, “With the advanced processing power of T&M instruments today, engineers can easily maintain its network of connected systems and push intelligence down the grid to turn massive amounts of raw data into bits of useful information, keeping the lights on for millions of businesses and homes.” Ubaythulla Ahamed, GM - R&D, Elmeasure India Pvt Ltd believes that it is very important today to be innovative in any field to have sustained growth. Most of the innovative products today use SMPS power supply or VFD drives to reduce the power consumption of the product, which is our major unique selling point. But SMPS power supply and VFDs generates high qty. of harmonics and the same are emitted to other systems. But unfortunately, harmonics are measured at the Incomer which will show very low as, the total amount of consumption vs. the individual consumption of the device is different. Today, every electricity user is getting familiar with the installation of individual power quality monitor with the individual device as against one power quality monitor in the incomer. A few advanced T&M instrument used for power quality monitoring NI’s grid automation system The National Instruments’s (NI) grid automation system is a programmable Intelligent Electronic Device (IED) designed to simplify substation monitoring and upgrades while improving measurement visibility. It does what fixed-function devices on the market can’t do because the functionality is defined by software. This approach to grid instrumentation uses a common set of hardware with software-designed measurements and communication protocols. With this approach, the grid automation system can deliver new measurements to operators and power system engineers while integrating with existing systems.
Additionally, the software-based measurements can be upgraded in the future as standards, research, and needs evolve. Full access to the streaming waveform data is available for inline processing, online monitoring, and storage on the device. One can program the grid automation system to intelligently select which data to monitor, store, or transmit to reduce storage and bandwidth requirements. The analog input channels that are designed for potential transformer and current transformer inputs use high-speed, high-resolution converters that sample at more than 1,000 samples per cycle with 24 bits of resolution. Using a hybrid, customisable device like the grid automation system can help simplify the transition between technologies by bridging existing setup with new technology and minimising the need for excess equipment. For example, the grid automation system programmed as a remote terminal unit can collect data from slave devices communicating over one protocol and output to the SCADA/EMS system over another. This prevents upgrading more equipment than needed and allows power engineers to selectively replace systems that are legacy or outdated.
With the advanced processing power of T&M instruments, engineers can easily maintain its network of connected systems and push intelligence down the grid. Avichal Kulshrestha, Staff Technical Marketing Engineer, National Instruments Continued to 32
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Industry Analysis Improving power quality with T&M instruments 30 f
In power quality monitoring FLIR India continuously collect and analyse data for changes in various electrical parameters. T P Singh, Country Manager & Director – Instruments (Sales), FLIR India
FLIR India’s Extech PQ3350: 3-phase power and harmonics analyser T P Singh, Country Manager & Director – Instruments (Sales), FLIR India says, “In power quality monitoring FLIR India continuously collect and analyse data for changes in various electrical parameters. With technological advancement the company has many equipment which are very sensitive to these changes. As these equipment are now interconnected any issue with single equipment can be severe over a time. Poor power quality causes damage to equipment, loss of energy, downtime and increased expenses.” FLIR India has various instruments for monitoring parameters such as voltage, current, frequency, temperature, force and torque for extended time. The company also test harmonics and high inrush current from equipment. Power monitoring instrument can provide reliable information about power quality, demand and flow. With power quality testing instruments the company can get optimum output from equipment and meet energy efficiency. Detailing about the advanced technology Singh adds, “Power quality analyser can help to prevent and troubleshoot power
Every electricity user is getting familiar with the installation of individual power quality monitor with the individual device as against one power quality monitor in the incomer. Ubaythulla Ahamed, GM - R&D, Elmeasure India Pvt. Ltd
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quality problems in three-phase power and single-phase power systems. It also supports data logging and comes with USB interface with software to download. One can use flexible clamp probes for true RMS power measurement with harmonics. Large dot matrix LCD display with backlight of 35 parameters in screen to monitor energy, active power, apparent power and reactive power, power factor, energy, TRU RMS value, AC current, and average and maximum demand with programmable time interval, CTR and PTR. Displays harmonics up to the 99th order, THD with waveform and peak value. It is available with clamp on CT having multiple range of 100A/1000A/1200A/3000A (Flexible CTs) as per application.” Rishabh Instruments’s power clamp meter Rishabh Instruments has a power clamp meter, Rish Clamp Power 1000/400 A AC/DC namely a fully power packed instrument offering all the parameters, one can consider it as ‘All you need for testing power’. Power clamp meter is a handy portable digital multi-functional measuring instrument, designed for measuring selected power network parameters like active, reactive and apparent power, power factor, harmonics, THD, inrush current, single phase energy, AC/DC Voltage, AC/DC current, resistance, continuity, diode and frequency. Apart from basic quantities meter enables the measurement of additional quantities calculated from values of voltage and current. Power clamp meter is an innovative device designed for increasing safety and comfort of user. Rotating clamp jaws facilitate the measurement at physically awkward position, vertical bus bars, and conductors at position difficult to access. Clamp jaws can be opened or closed with the trigger placed at bottom side placed away from the jaws. This allows the user to place his/her hand at safer distance from live conductor. Location and design of trigger eliminates fatigues caused by single finger operation. Rishabh Instruments offers some of the distinct features in the product like: • Automatic calculation of 3 phase power balanced and unbalanced load no need of manual calculation • Horse power measurement • Inrush current measurement • Individual Harmonic measurement up to 49th harmonic and THD • Energy measurement for single phase • Our unique patented rotatable jaw and clamp trigger at back side of meter so as to • keep display always in front in physically awkward places • Non-contact voltage detection. Electrical & Power Review
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Industry Analysis
IoT makes meters smart Analysis on IoT meter and its advantages
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mart meters are the heart of the advanced metering infrastructure (AMI) deployed for better energy efficiency through demand side management and flattening of dangerously fluctuating peak demands, integration of renewable energy sources, better forecasting of energy demands, asset management and many such advantages aimed at achieving the Prime Minister’s vision of 24x7 ‘Powers for All’.
Which of the branch office/franchisee shops/hotel room are spending how much electricity? Hourly measurement of data is first step towards energy audit and eventual energy management. Through analytics, one can then deduce waste of energy due to (old) age of equipment, responsible vs. wasteful handling of equipment and rental space, faulty air conditioner (over-worked compressor), and several similar money-wasters.”
IoT plays an important role in meter. IoT connects the users to the device and makes one aware of what is happening inside. With Bluetooth Low Energy (BLE) enabled meters the user can have the consumption analysis, billing and current power usage on a smart phone or on in-home display.
Kulkarni adds, “Other advantages include quick detection of theft, deterioration of transmission lines or transformers, timely billing, quick replacements in case of faulty meters or faulty lines and so on.”
On the other hand it allows the power utilities to manage the total power demand and losses, ensuring higher efficiency in operation and distribution. Advantages of IoT meters Explaining about the advantages of IoT enabled electricity meters Dhananjay Kulkarni, SVP – IoT MosChip, Ex-COO, Maven Systems Pvt Ltd says, “In private sector, IoT enabled meters can be used for sub-metering in industries, malls, and commercial establishments. This allows precise data collection regarding which machine on shop floor is consuming how much electricity. Which vending machines are energy guzzlers? Which tenants are consuming more electricity during day time vs. night time vs. when on diesel generator?
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In a country where electricity generation is at handful locations, knowing demand patterns of each region is immensely useful. Cultural diversity results in having different festivals at different times in different regions. Each festival results in high demand – in that region. Knowing the consumption behaviour at micro level is immensely useful for planning electricity generation, transmission and maintenance. “This is possible only through IoT enabled meters connected to communication backbone transmitting data several times a day to the main cloud server which is capable of performing analytics,” says Kulkarni. Conventional electricity meters are islands – working in isolation, believes Kulkarni. He informs, “In India there are over 20 crore such islands. On the other hand, an IoT enabled meter is an end point of Electrical & Power Review
Industry Analysis
Consumers want to know what is happening inside their appliances, and especially meters, which have always been a black box with some figures on display which may not be even clear to most of the users. Abhed Misra, System Applications Lead, LPRF Solutions, Texas Instruments India Pvt. Ltd
a communication tentacle. All these 20 crore end points can collect consumption demand information from each house-hold.” On the other hand Abhed Misra, System Applications Lead, LPRF Solutions, Texas Instruments India Pvt Ltd believes that more than advantage it is a necessity for every electronic device to be IoT enabled. World is getting digital day-by-day and people stay on ground but live in cloud (World Wide Web). He adds, “The most important thing is that the users are driving this revolution. Consumers want to know what is happening inside their appliances, and especially meters, which have always been a black box with some figures on display which may not be even clear to most of the users. And this is where IoT plays its part.”
With the smartness being brought by IoT, electricity meters have a lot more to offer like load control, prepaid recharge, non-tampering and anti-theft features too. Unlike conventional pre-paid meters, where you had to manually enter the recharge code, smart meters get recharged through wireless connectivity after doing authentication from utility’s central server on cloud. “IoT enabled smart meters have two distinct functionalities over the presently deployed anti-tamper meters in India,” states Jitendra K Agarwal, Joint Managing Director, Genus Power Infrastructures Ltd. These are- remote connect and disconnect feature and two ways communication, IoT based open standards based state of the art communication technologies. Agarwal adds, “With this functionalities, the existing meters turn into an extremely powerful IoT sensor, spread all over the country in hundreds of millions numbers, as a tool enabling utilities to get timely information to control AT&C losses.” Acceptance of IoT enabled electricity meters Sharing his views on the acceptance of IoT enabled electricity meters Agarwal says, “Earlier only a few people were using a smart phone but today majority of them have smart phones. It has empowered common people. Similarly, smart meters will not only empower the consumer but the utilities too. Utilities can have direct monitoring and control till consumer end.”
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june 2017
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Industry Analysis foundation of smart meters being accepted at much greater pace than five years ago.
We are the first company in India who has deployed smart meters in smart grid pilot projects with various utilities. Jitendra K Agarwal, Joint Managing Director, Genus Power Infrastructures Ltd.
Agarwal observes, “At present, one of the biggest pain area of the utilities is the direct control at the consumer end and this problem can be taken care by smart meters.” Ministry of Power is also aggressively working with all the stakeholders for deployment of smart meters in entire country. Central Electricity Authority has released functional specifications for smart meters and BIS has also released relevant standards of smart meters recently.” Kulkarni also believes that IoT enabled electricity meters are well accepted in India and especially in the private sector. He says, “This (IoT enabled electricity meters) meter is well accepted in India.” Nearly all the new consumer meter tenders floated by the state electricity companies insist on IoT enabled ‘connected meters’. Since there is very little standardisation in this space, the tenders ask for different ways of connecting – using ZigBee, DLMS, 6LoWPAN, PLC and others. But overall the concept is well understood and sought after in India,” believes Kulkarni. In addition Kulkarni says, “In private sector, there is even more drive towards these meters because of direct benefit in regards to detecting problems and saving electricity costs. The main challenge is to find companies which can provide end-to-end solutions or interoperability with different types of IoT meters. But that problem is reducing with recent advances in technology.” It won’t be wrong in saying that India till now has been one of the fastest adopters of IoT technologies in India. Whether it is Zigbee or 6LowPAN or GSM/GPRS, we have installations of all the technologies in field. And this is the reason that India has a very good knowledge base of which technology performs how and in what field conditions. “Smart electricity meters have been happening now from past 10 years. However, the drive did catch up in last few years especially, but the best part is more and more POC’s are happening with newer technologies integrated inside smart meters,” observes Misra. “We already have a huge base of smart meters installed and used in field. And with power utilities, ministry of power and semiconductor solution providers like Texas Instruments the effort of refining and defining the next generation smart meters is more focused and directed,” informs Misra. The user today wants to know more and more and wants to be connected always with everything. This has actually laid the
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Players readiness for IoT meters Genus Power Infrastructures Ltd is ready and has been developing smart meters for India in parallel with the evolving Indian standards and contributing aggressively. Its manufacturing facilities have also been upgraded to support the smart meter production for domestic as well as global needs. Its in-house R&D center equipped with NABL accredited laboratory, world class equipment and highly qualified and experienced team of engineers with domain expertise has developed complete solutions right from hardware, firmware to communication technologies and software. In addition all its products and solutions undergo a stringent process of reliability tests and validation process before mass roll out. “We are the first company in India who has deployed smart meters in smart grid pilot projects with various utilities,” claims Agarwal. Explaining about the readiness in this domain Misra says, “India is a very big nation and in other words is a group of nations inside. But one of things, which are common in this vast diverse set of users, is the need of being connected. With companies like Texas Instruments who are already offering very mature and secured solutions on technologies like BLE, Zigbee, Wi-Fi and 6LowPAN, along with entire solution in less than a nail size, it only proves the solid preparation and readiness to make smart meters a big success from design, usage and adoptability perspective.
With more than 50,000 IoT meters in field, Maven/MosChip has one of the most advanced field proven end-toend solution in this space. Dhananjay Kulkarni, SVP – IoT MosChip Ex-COO, Maven Systems Pvt. Ltd.
“The most important part is being played by Ministry of Power and State Power Utilities in working with meter manufacturers and semiconductor solution providers like Texas Instruments, to use every single moment in making India a smarter nation,” he adds. Maven/MosChip has IoT meters deployed in the field since 2013. The solution consists of connected meters, gateways, cloud server application and its connectivity to billing server. “With more than 50,000 IoT meters in field, Maven/MosChip has one of the most advanced field proven end-to-end solution in this space,” informs Kulkarni. Electrical & Power Review
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Tech View
Uncovering the invisible Why the integrity of the ground grid needs to be checked Invisible danger in older substations The integrity test for the ground grid basically consists of verifying the continuity between two different points on the grid. It ensures that the internal connections within the grid are in a good enough condition to dissipate fault currents. Such a test is particularly important in older substations where the grid has been buried for a long period of time and it is not possible to verify the connections visually. In addition, soil with low resistance is often chosen for constructing substations, which can corrode the grid’s metallic components over time. In the “IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System” (IEEE 81 standard) different methods for measuring the continuity are mentioned. A 230 kV substation was examined using the high-current test method.
Only a CPC 100, a voltmeter and a clamp ammeter are used to carry out the test.
T
he grounding system is an important component for the correct function of a substation. When it is not in suitable condition, there is an increased safety risk for people and control and measurement equipment may be affected as well. Different standard tests give an indication of the overall functionality of the ground grid but they cannot determine the precise internal condition of the grid itself. The commissioning and maintenance strategy for electrical substations normally includes testing that assesses the condition of the ground grid: Measurements of the soil resistivity are done during the design stage; ground grid impedance and step and touch voltages are checked regularly. However, these tests cannot reveal the condition of the grid’s connections that affect its continuity. Therefore, a ground grid integrity test should be done in order to assess it.
With the CPC 100, ground impedance, step and touch voltages and integrity tests can be carried out with one test set.
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Alex Farias, Regional Application Specialist, OMICRON, USA
High-current test method In the first step, different reference and test points are identified in the floor plan of the substation. Then the measurements are done. A DC current (ideally 50 A minimum) is injected into the ground grid from a ground riser, it then passes through the grid itself to a reference riser. One part of the current flows to the ground grid while the other part flows above ground to grounded structures. The branch current that flows to the ground grid is measured with a DC clamp meter (Figure 1) in order to determine the resistance of the conductors that are buried between the injection points. The corresponding resistance of the buried conductors is calculated based on the measured branch current and voltage values. In order to compare the resistances of different test points to each other, the distance between the two injection points has to be taken into account. Therefore, the measured resistances are divided by the distance. A practical experience The resistances between different reference and test points were measured in the 230 kV substation. The equipment that was used during the test was a CPC 100 for delivering the 300 A DC that was required, a DC voltmeter, a DC clamp ammeter and markers for identifying the test points (Figure 2).The resistances per meter were determined for several test points in the substation as shown in Figure 3. The measurement showed no significant deviations between the relative resistances within the substation. All of the values were between 0.4 mΩ/m and 1.2 mΩ/m.
Electrical & Power Review
Tech View
Raúl ComasVagas, Specialist Consultant Engineer, Colombia
Fact page:
HGT1
CP CU1
Further investigation is recommended if the test points show a significantly higher resistance value compared with other test points. The test point should be revealed in order to carry out a visual inspection. In addition to measuring the impedance of the ground grid and the step and touch voltages of the substation, it is also important to be aware of the integrity of the grid itself. An integrity test for verifying the continuity of the grid at any of its points should be a standard procedure in the maintenance strategy of a substation. Thanks to the multi-functionality of the CPC 100, ground impedance, step and touch voltages and integrity tests can be carried out with one test set.
CPC 100 – the multi-tool for grounding system and substation asset testing Expanded by its accessories CP CU1 and HGT1, the multifunctional CPC 100 performs ground grid impedance and step and touch voltages measurements: • The CPC 100 + CP CU1 reduces the power and the equipment weight needed for ground impedance measurements to a minimum. The CP CU1 ensures the galvanic isolation ofthe user from the object under test for enhanced protection. • The handheld HGT1 for measuring step and touch voltages eliminates the need for a separate set of long measurement cables. The multi-tool for substation testing With the CPC 100, you can also perform electrical tests on power transformers, current transformers, voltage transformers, rotating machines, overhead lines and cables, and circuit breakers. This makes testing with the CPC 100 a time-saving and cost-effective replacement for numerous individual testing devices.
MAHENG/2012/47805 MAHENG/2012/47805
Vol 5 Issue 7 • Pages 64 • May 1, 2017 • `100/- • www.eprmagazine.com Vol 5 Issue 8 • Pages 56 • April 1, 2017 • `100/- • www.eprmagazine.com
Inside Switchgear industry in top gear Boosting the power sector with turbines Is Microgrid answer to rural India’s power woes? Solar PV: What lies ahead
Inside >> Is India’s switchgear sector ready for smart city challenge?
Transforming rural India
Opportunities for transformer industry out of rural electrification movement
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june 2017
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Green Zone
Small Hydro, Big Opportunity Analysing how small hydro projects bring big business opportunities
S
mall Hydro Power (SHP) projects are done in small rivers streams or are enforced in the existing water infrastructure. SHP projetcs are mainly developed for generating power in the remote regions. Like solar and wind small hydro power can lead in the renewable energy segment as it has huge potential also due to its versatility in low investment prices it can turn as promising and economical energy solution for future power requirements. Apart from being one of the major source for power how SHP projects can bring big business opportunities is a thing to watch and to take the small hydro projects ahead the government also need to boost the sector. To understand how SHP projects can bring big business opportunities, this article will describe about the same. India’s SHP potential is 19,749 MW with 6,474 identified projects and Karnataka has the largest share of over 4,000 MW. Of these projects, a total of only a little over 1,100 MW are under implementation. Sharing his views on the growth of the small hydro power Neelav Samrat De, Asst. General Manager (Marketing & BD), ANDRITZ HYDRO Pvt. Ltd states, “Even though SHP comes under renewable energy and enjoys the benefits of renewable, however, we have not witnessed a considerable growth in this domain. Clearly, under the government’s ambitious renewable energy thrust, we see importance given to solar and wind and the least to SHP projects. Even though SHP is a very state related
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issue, where the state utilities through their renewable department give developer licenses, we as equipment manufacturers, have not witnessed the zest from state governments to put thrust in SHP projetcs, maybe barring Himachal Pradesh, where HIMURJA, the nodal state renewable agency, has in the recent past given developer licenses for over 750 SHP projects.” Small hydro enjoys sops and tax benefits as it is under the renewable ambit. MNRE has implemented some commendable steps to encourage investors and developers to take up the SHP initiative as this caters primarily to the local population and does not get involved in issues of land acquisition, huge capital investments and other issues related to large sized hydro projects. Briefing on how SHP projects can bring big business opportunities Neelav adds, “While looking back at the opportunities, SHP projetcs are a very good proposition for developers not only from the benefits of sops and lesser risks, but also from interests during construction, lesser project completion schedules and rebates. Also with the solar wave going the promising way, SHP projects also belonging to the same category would also see a push, as we in the industry anticipate. SHP projects are looking towards a push and we could probably be looking at a good opportunity in this segment in the coming months. Specifically, also with the MOP trying to push for the hydro sector’s revival, we are hopeful for SHP too.” Electrical & Power Review
Green Zone Dr. Rajib K Mishra, Director (Mkt. & BD), PTC India Ltd believes, SHP projects are generally required to supply both a local community and industry or to contribute to the distributed generation in regional or state electricity grid. Generally the SHP projects are without dams and pre-dominantly developed on streams with good hydrology on run-of-river scheme. The option of supplying power to remote hilly areas and townships can either be through long transmission lines or through generation at the point of consumption itself. The distributed generation for remote hilly areas are best suited for SHP projects. If we see the western countries and particularly hilly countries like Norway and Sweden, SHP projects with ownership of local community are pre-dominantly supplying power in remote areas. “In India the focus in recent past is adding capacities in thermal and
SHP projects are looking towards a push and we could probably be looking at a good opportunity in this segment in the coming months. Neelav Samrat De, Asst. General Manager (Marketing & BD), ANDRITZ HYDRO Pvt. Ltd
There is a huge opportunity for developing such SHP projects in remote locations which can cater to local needs and can sell surplus power to the grid. Dr. Rajib K Mishra, Director (Mkt. & BD), PTC India Ltd
renewable which are well integrated and are of higher scale. This was done to achieve larger targets and to cater to the needs of electricity in a much faster pace. But we cannot ignore the fact that the remote areas and hills are yet to be electrified and connected to the grid,” points out Dr Mishra. Mishra adds, “There is a huge opportunity for developing such SHP projects in remote locations which can cater to local needs and can sell surplus power to the grid. This can be owned by local municipality or panchayats and can be on the franchise models as well. The participation of community and the women self-help groups for installing small hydro and supplying power to the local communities can equally be harnessed. So therefore there are many opportunities for small hydro projects that are not tapped.”
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Electrical & Power Review
ELECTRICAL CONTROL BOARDS • LT Power Control Centre [PC( Panel) • Motor Control Centre [MCC Panel) • Automatic Power Factor Correction Panel [APFCR Panel) • Auto Mains Failure Panel (AMF Paned • DG Synchronizing Panel • AC/DC Drive Panels [VFD Panels) • PLC & SCADA Automation Panels • Solar ACDB/DCDB • Automatic Source Changeover Panel [ATS Panel) • Meter Boards • Street Light & Pump Control Panels BUS TRUNIONg SYSTEMS • Phase Segmgated & Phase Non-Segregated Bus Duct unto 10000Amps. • Smart Bus Bar Chamber System CABLE DISTRIBUTION SYSTEMS • Cable Trays • Cable Ladders • Cable Raceways STORAgE SOLUTIONS • Display Racks • Cantilever Racks • Library Racks • Pallet Racks • Slotted Angle Rack CUSTOMIZED CNC FABRICATIONS • CNC Sheet Metal Fabrication
june 2017
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Interview
Lokesh Saxena, VP - Industrial Business & Services, SKF India Ltd
With hosted software and the remote monitoring services, SKF will supply the expertise, tools, and training necessary to set up a complete monitoring program anywhere in the world.
W
ith its century of experience and strong hold across 40 industries, SKF has an advanced understanding of how mechanisms and industrial processes are interconnected, which helps them offer customised solutions to each industry. In an interview with Subhajit Roy, Lokesh Saxena, VP - Industrial Business & Services, SKF India Ltd gives an overview of the company’s offerings for the wind energy sector. Excerpts: How do you look at the opportunities in Indian wind power market? The wind market is a very futuristic industry. The market is looking for better availability, lower cost of energy generation and highly technology advanced products. Additionally, there is a clear focus from the government also on this sector to boost productivity and higher power generation. In view of this, all levers are now being pushed to achieve the vision of 60 GW energy generation by 2022. At SKF, we’re geared to support the industry with our local capabilities, backed by over 100 years of SKF knowledge which will ensure world-class products and solutions for the wind industry locally. Which new technologies are you planning to launch in the Indian market in the coming times? At SKF, our focus is on optimising the performance of the rotating parts of any machinery. For the wind industry, it translates into improving the reliability of main shaft bearings and gear box bearings. All SKF products and solutions are designed and
Taking Wind Turbine Maintenance to Cloud developed to ensure that the performance of the products of our customers is the best. Our focus is on bringing the SKF global capabilities to the wind industry segment in India with appropriate products for the Indian markets. With a clear focus on segment needs, our products are designed and developed to suit the local market. Our complete range of bearings, seals, lubrication systems, maintenance products and allied services for the wind industry are a resultant of the same. Specifically in 2017, we have launched two products namely SRB wind and SKF Multilog IMx-8 to optimise turbine performance. SRB wind will be the new SKF standard for self-aligning main shaft arrangements in the wind turbine industry – a cost-competitive spherical roller bearing range (240-series), with enhanced performance and robustness in wind turbines against catalogue equivalent size. Most competitors do not have a wind specific solution for SRB main shaft applications. They still offer standard SRB as main bearings, in a rather old design with fixed middle flange in combination with a two piece cage. SKF Multilog IMx-8: SKF Multilog IMx8 provides a complete system for early fault detection. It improves the reliability, availability and performance of the rotating equipment in the wind turbine. This compact device offers eight analogue and two digital channels, with connectivity to mobile devices Continued to 44
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g
Electrical & Power Review
Interview Interview of Lokesh Saxena, SKF India Ltd 42 f
as well as laptops for easy configuration and monitoring. Machine intelligence from IMx-8 data will help customers to avoid unplanned downtime and schedule maintenance proactively, prolonging machine availability and minimising maintenance and repair costs. IMx-8 integrates easily with SKF Cloud for storing and sharing data, enabling SKF Remote Diagnostic Services for expert reporting and recommendations. The IMx-8 is DIN rail mounted, and can be housed in an IP65 cabinet to provide additional protection in demanding industrial environments. SKF has developed an app-based turbine maintenance support. Would you like to introduce this solution in the Indian market? The app-based turbine maintenance support is possible with our product IMx-8. Once installed at a turbine, the report can be seen by the customer via an app. The reports can then be sent to our RDC (Remote Diagnostic Centre) which will help our customers to access and trace the functionalities of remote machines to prevent downtime in an effective and frequent manner. SKF’s Remote Monitoring Service makes it possible for any wind turbine farm with Internet access to implement a world-class PdM (predictive maintenance) program for periodic or continuous monitoring of critical machinery. This SKF solution is ideal for plants with limited staff trained in predictive maintenance techniques, operations with sites located remotely from a central facility, and original equipment manufacturers that desire to provide a value-added service to their customers. With hosted software and the remote monitoring services, SKF will supply the expertise, tools, and training necessary to set up a complete monitoring program anywhere in the world. Is Indian wind power sector ready to adopt such cloud-based solutions? Yes, we believe that the Indian wind industry market is a technologically progressive market. There are many
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SKF Multilog IMx-8
solutions that they’re adopting to keep abreast with the global trends and this is why the sector is very confident of a good future. SKF is keeping pace with this growth and our solutions that are tailored for the wind industry will only strengthen this progress. Specifically focussing on cloud-based monitoring, it is the need of the hour to ensure higher uptime and predict maintenance needs better. This is the aim of our remote monitoring capability. Globally many such wind farms are remotely monitored by SKF and in India, a major wind farm in India has deployed this and we’re awaiting the results. What is your strategy to expand activities in India for the wind segment? India is one of the fastest growing market, and with government’s focus on “clean energy” and manufacturing, it is expected to grow with a double digit in the coming years. With our clear focus to tap the growing market and cater to the global players, we are regularly customising and launching products appropriate for the market and as per industry requirement. Our two recently launched products at Windergy 2017, is a step in this
direction. We will continue to expand our portfolio with the changing times. At SKF, we have the complete capability right from specification, design, development, manufacturing, installation and remanufacturing of the products at the end of their useful life. This takes care of the complete life cycle of a product. Our Global Technical Centre- India (GTCI) at Bengaluru is our R&D arm focused at working for the Indian market. The segment need is defined by our product engineering team here In India that works closely with GTCI to bring these products for the markets. Our manufacturing footprint in India consists of six factories of which Ahmedabad factory manufactures bearings for the wind industry, customised machined seals are manufactured across India and lubrication systems come from Bengaluru. SKF Solution Factories are a global network of factories catering to complex maintenance needs of our customers which take care of remanufacturing of mid- and largesize bearings of wind industry. RDC is our remote monitoring centre that monitors the health of wind farms. Electrical & Power Review
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Guest Column
Solar projects: No compromise on material and workmanship quality Highlighting the common issues that have plagued several solar projects across the country over their operational history.
O
ver the past few years, Excelsior Engineering Solutions has carried out various plant audits and quality checks for several MWs of ground mount and rooftop projects spread across locations in India. The outcome of these audits unravelled certain findings that were quite universal, familiar in characteristic. Even though the projects were installed in different locations by various competing vendors for a diverse clientele with dissimilar technologies, there are several findings to be identical. In this article, we would like to focus on the common issues that have plagued several solar projects across the country over their operational history.
Solar modules • Formation of hot spots within the cells. • Snail trails on the modules. • Failure of bypass diodes in the module junction box. • Sagging of frameless thin film modules. MMS • Lack of code compliance in the design criteria of the structure. • Utilisation of smaller or lighter sections that are not in keeping with the design to reduce overall material utilisation per MW. • Absence of concrete or re-bars below the pile foundations.
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• Inconsistency in the mixing of concrete used. • Inaccurate pile foundations leading to misalignment of the structure columns. • Pile caps of column post missing. • Holes drilled on the purlins at the fabrication shop being inaccurate leads to on-site drilling; workmanship of such fixes tends to be poor. • Rusting of parts due to improper galvanisation. • Sagging and buckling of structures. • Aluminium sections of inadequate load bearing capacity being used for rooftop installation. • Rusting of fasteners and the threading of the bolts being worn off. • Nut bolts mounting the module to the structure are found loose. • Necessary grade of fasteners not being used. Inverter • Central inverters not maintained properly. Layers of dust are found inside the equipment. • Inadequate equipment earthing. Trench • Route markers essential to identify cable routing missing. • Inconsistent depth of trench in reference with design drawings. Electrical & Power Review
Guest Column • Bricks, safety tapes, non-rocky sands missing in the trenches. • Mixing of AC cables along with communication and DC cables in the same trench.
occurring in the system. • Use of inferior quality cable.
Grounding • Shearing of the bonding between the earth strip and the earth rod. • Structure grounding disconnected from the earth strip. • Interconnected AC and DC earthing. • Post installation verification of earth resistance values not carried out.
Civil works • Due to the use of local and unskilled workers at site, several issues arise with the civil works of control room, equipment foundations, peripheral walls etc. • Proper compacting of the ground not being carried out causes the building or equipment to tilt post the monsoon. • High speed winds damaging doors and causing street lights to fall.
Cables • Cables missing proper tagging/ ferruling making it difficult to trace the cables during fault finding. • Improper crimping of lugs at the equipment. • Cable insulation is not tested post installation to find if any damage took place done during laying of cables. This results in faults
O&M • It is a common notion by several clients that cleaning modules regularly is the sole O&M practise to be carried out. • Preventive and predictive maintenance activities of equipment’s are hardly ever undertaken. • No proper records of spare parts
consumption, fault analysis or grid shutdown are found. • Personnel’s on site are not given professional training to handle the equipment and safety procedures to be followed. The above observations are not the findings of any single project. These are common observations made by Excelsior site team. To counteract aggressive bidding by cutting corners for small savings, will always be met with a negative impact on the project. We are at the dawn of an energy revolution. The solar projects will not be able to withstand 25 years of working lifecycle if we compromise on the material and workmanship quality.
Authored by__ Uday Doshi, Founder, Excelsior Engineering Solutions
Programmable F/I – F/F convertor Model : PR 5223 The F/I function performs frequency to current -/voltage conversion in frequency ranges from 0.00 to 20 kHz and as regards the digital outputs, it acts as frequency watch for e.g. speed control. The analogue output can be programmed to show period meaning that the input frequency can be converted to a linear time signal. • • • •
Pulse Calculator Frequency generator Galvanic isolation, optional Ex Analogue current – and voltage output • PNP/NPN output, optional relays • Universal supply Model : PR 5225 The F/I function performs frequency to current – and voltage conversion. The output can be programmed to show Electrical & Power Review
period meaning that the input frequency can be converted to a linear time signal. The digital outputs are used as e.g. a frequency watch for speed control or as a window comparator having one status between 2 limits and the opposite status outside these limits. • • • •
Pulse conditioning Frequency generator Concurrent F/I and F/F function Analogue current – and voltage output • PNP/NPN output, optional relays • Programmable by PC and Loop Link Contact Toshniwal Hyvac Pvt Ltd., No.267, Kilpauk Garden Road, Chennai – 600 010. Tele: +91-44-26445626 / 26448983 Fax: +91-44-26441820 Email: sales@toshniwal.net www.toshniwal.net june 2017
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Testing high-voltage plants with thermal imagers from Testo The solution With the high-resolution thermal imager testo 890, these sources of malfunction can be quickly and precisely identified before they become serious problems endangering the reliability of supply. The wide-angle lens of the imager quickly provides a meaningful overview of the overall status of the plant being tested. In order to assess distant measurement objects precisely, the telephoto lens is recommended. It reliably and precisely measures objects with a size of 19 mm from a distance of 15 m. Anomalies, so-called hotspots, are identifiable from a size of approx. 6 mm.
A
s an integral part of electrical supply networks, high-voltage plants such as substations must ensure as uninterrupted a supply of electricity as possible due to the high availability of their electrical systems. A malfunction or interruption of the electrical grid is often preceded by thermal warming caused by electrical resistance. This must be localised, evaluated and if required, the time frame for a repair determined. Using the thermal imagers from Testo, thermal warming can be tested without contact and from a safe distance, without endangering the user or needing to shut down the system. The challenge Most symptoms of wear, material fatigue or cable rupture in the transmission of electrical current are preceded by thermal warming due to increased resistance. If this resistance becomes too high, the heat development destroys the component, with the possible result of a power cut. The objective of maintenance work is to obtain an overview of the switchgear which is comprehensive as well as detailed
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– including all circuit breakers and power switches, converters, insulators, screw fittings, cables or other connections. A further challenge lies in the cooling oil of the transformers. Due to eroded insulation, slurry can occur here, which is deposited in the cooling ribs. The blockage of the throughflow in the affected cooling ribs initially compromises the cooling, and in the worst case can result in the failure of the complete cooling function of the transformer.
This allows the smallest cable ruptures or warming in circuit breakers, for example, to be evaluated from a safe distance. The large fold-out, rotatable display of the testo 890 allows overhead imaging work, and in combination with the rotating, ergonomic grip, the imager can be confidently handled even in difficultto-access places. Finally, the status of the system being tested can be professionally documented using the intuitive evaluation functions and the easy report creation of the analysis software IRSoft.
Image 4: Testo Thermal Imager 890 For more information, write to info@ testoindia.com or visit www.testo.in Electrical & Power Review
POWER BRAND
Insulation resistance testing in high induction environment I
nsulation condition is the key factor of operational safety and correct operation of electrical devices and systems, and in addition, it is a protection against direct contact. Systematic examination of insulation condition is necessary in order to detect any deterioration of insulation and is a permanent element of inspection and measurement works. In the case of measurements of industrial equipment, the tendency of resistance value changes is of key importance, because it can indicate gradual deterioration of insulation condition. Basic elements influencing deterioration of insulation are: electrical and mechanical exposures, chemical aggression, thermal exposures and environmental pollution; as a result of their influence during normal operation of electrical equipment, its insulation is subjected to ageing. Insulation resistance measurements are performed with direct current in order to eliminate the influence of capacitance. The method for performing insulation resistance measurements and the required measurement voltages are defined in the standards: HD 60364-6, E-04700, EN 61557-2. After applying
Electrical & Power Review
measurement voltage, physical phenomena occur in insulation, causing the flow of current. During resistance measurement, the following components of the current flowing through insulation (1) can be distinguished: The capacitance charging current (2) - depending on the capacitance (e.g. the length of measured cable), the absorption current (3) - resulting from charge and dipole movement in the electric field, the insulation leakage current (4) - the sum of currents flowing through and on the surface of the material. Due to the nature of current flowing through insulation, the measured value is influenced by the time of measurement, as well as humidity, temperature, measurement voltage and Cleanness of the insulation material surface. The three-lead method, used in all advanced instruments, allows for eliminating the influence of the surface leakage current. In the case of cables, the core insulation must be wrapped in a metal foil connected to the shield terminal of the instrument - only the leakage current flowing through insulation is measured. Measurement with the three-lead method is recommended for large surfaces exposed to pollution (large diameter cables, transformers, HV switches): • MIC10K1 – Insulation resistance meter which has a high Noise immunity to work in 765KV substation • Newly launched model with the
MIC10K1
special feature of having the capacity to work even in high induction substation namely 765KV. • High test current upto 6mA makes the test procedure easy to get the better result. • Resistance measurement upto 40 TΩ. Features • Large LCD graphic display 5.6-inch • Test Voltage range – 50V to 10KV (50 to 1000V with 10 steps, 1KV to 10KV with 25V steps) • Adjustable measuring time from 0.01-inch to 99.59-inch • Real time on screen graph printing during resistance measurement. • Automatic measurement of multiple core cables with the use of the additional Auto ISO-5000 adaptor. • Ability to work with wireless Bluetooth keyboard. • Digital filter function for measurements in high noise environment (10s, 30s, 60s).
Contact Sonel Instruments India Pvt Ltd 1B, Block IV, Natwest Vijay, Velachery Main road, Pallikaranai, Chennai - 600 100 Tele: +91-44-42642728 Email: sales@sonel.in www.sonel.in june 2017
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power brand
Rajguru Electronics offers Thermal Printing Solutions M
umbai based Rajguru Electronics is one of the leading suppliers and distributer for thermal printing solutions.
Thermal Printer (RT628RG) Pin to pin compatible with Fujitsu FTP-628 MCL101 MCL103 Seiko LTPZ245 Specifications: • Printing method: Thermal • Dots/line: 384 dots/line • Resolution: 8 • Printing width (mm): 48 • Paper width (mm): 58 • Feed resolution (mm): 0.125 • WxDxH (mm): 70.3x33.0x15.5 • Weight (g): About 80 • Head temperature detection: Thermistor paper
• Paper detection: Photo-sensor operation • Operation voltage range (V): 3.0 - 8.0 4.2V - 9.0 V logical • Logical voltage (V): 3.0 – 7.0 • Operating temperature (C): 0 - 40 • Operating humiture (RH): 20% - 80% • Storage temperature (C): 25 - 70 • Storage humidity (RH): 10% - 90% • Usage: Receipt printer, cash registers, medical devices, taximeters, etc.
• • • • • • • • • • • • • • •
Resolution: 8 dots/mm Printing width (mm): 72 Paper width (mm): 76-80 Feed resolution (mm): 0.125 WxDxH (mm): 92x33.5x15 Weight (g): About 52 Head temperature detection: Thermistor Paper detection: Photo-sensor Operation voltage range (V): 3.3 - 8.0 Logical voltage (V): 3.0 – 7.0 Operating temperature (C): 0 - 40 Operating humiture (RH): 20% - 80% Storage temperature (C): 25 - 70 Storage humidity (RH): 10% - 90% Usage: Receipt printer, cash registers, medical devices, taximeters, etc.
Contact Thermal Printer (RT638RG) Pin to pin compatible with Fujitsu FTP-638 MCL101/MCL103 Specifications: • Printing method: Thermal dot line printing • Dots/line: 576 dots/line
Rajguru Electronics 399, 3rd Floor, Manek Chambers, Above Vasant Bhavan Restaurant, Lamington Road, Mumbai – 400004 Tele: +91-22-23822040 Email: anu@rajguruelectronics.com www.rajguruelectronics.com
ICA India conducts national workshop on electrical safety
T
he use of electricity is an integral part of our lives and it is important to harness it safely and efficiently. There are many lives lost each year as a result of electrical-related incidents and fires. A number of electrical fatalities and injuries that occur each year can be overcome through understanding of safe
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electrical practices. Due to the complexity of regulatory requirements, many safety professionals may not be fully equipped to handle the task. International Copper Association India (ICA India) in association with Central Electricity Authority (CEA) as a part of its seminars and workshops on Electrical Safety across India, conducted 3rd National workshop on ‘Electrical Safety’ in Delhi. The workshop aimed to outline the regulations to ensure that electrical installation safety standards are followed properly. Electric defaults have been seen as the largest single reason for cause of building fires. The government of India has accorded high importance to this area.
Unfortunately poor practices, improper and weak installations, undersized and inferior quality of wires in the buildings have resulted in an increasing number of electrical accidents. The objective of this workshop is to create awareness about electrical safety amongst stakeholders and sensitise them on how to mitigate risks in such situations. ICA India and CEA along with the panel of experts organised this workshop with the aim of increasing the industry professionals’ awareness of various safety measures and precautions while installing, handling, repairing or working on electrical installations and urging them to follow the revised standards. Electrical & Power Review
EPR
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Energy And Environment Foundation
Energy And Environment Foundation
Environment
Sustainability AWARD 2017
Award 2017 Energy And Environment Foundation
www.ee-foundation.org
WasteMet
Energy And Environment Foundation
GreenBuilding
AWARD 2017
AWARD 2017
Date: 22
& 23 August 2017
Venue: New
21 22 23
New Delhi | India
AUGUST 2017
Renewable Energy : Global Cooperation for Sustainability
Delhi - India
We would like to extend an Invitation for you to nominate for the most deserving individuals and organisations today Global Awards Category
Area Spread over
Visitors
Country
Delegates
15,000 sqm
5000+
30+
550+
KEY HIGHLIGHT • 15,000 sq. mtrs. of Business Space • Connect with 1000 international exhibitors • Keep up with future trends for continued business success • 3 days International Conference and B2B session • Global Awards 2015 in Renewable Energy Sectors
Book Stall Space Now
Environment Awards Sustainability Awards WasteMet Awards Green Building Awards Nomination Deadline
June 30, 2017 Application Form
Reserve your exhibition space today! - Meet with industry leaders, policy and decision makers at networking events. - Position your company as the leading brand for future energy solutions. th
8 World Renewable Energy Technology Congress & Expo-2017 is an excellent platform to promote your organization to influential players and investors in the industry. Showcase your technology, products and services. Sponsorship opportunity available. Contact 91-9971500028
Application Form and Ruels & Regulations can be obtained by sending request by email to dranilgarg2011@gmail.com For details visit us
www.ee-foundation.org/awards.html For More Information
Dr. Anil K. Garg President, WRETC-2017 Cell : 9971500028, 9999071071 dranilgarg2011@gmail.com dranilgarg@ee-foundation.org
Punit Singh Cell : 9213901510, 011-22758149 Telefax : 011-43019379 punit.nagi@ee-foundation.org
www.wretc.in Media Partner:
For regular update join
power brand
igus data cables for smallest bend radii in moving applications
New chainflex data cables CF298 and CF299 with TPE outer jacket for the smallest bend radii down to 4xd.
T
he latest generation of chainflex data cables with a new alloy conductor and a halogen-free TPE outer jacket is ideally suited for the smallest bend radii down to 4xd with cycle numbers of over 40 million strokes. The new highperformance conductor alloy from igus is the solution for highly dynamic, fast applications with small radii from 15 millimetres. The new chainflex series CF298 and CF299 are a unique cable series for extremely heavy duty at the
smallest radii, and can be delivered from stock.
resistance in combination with energy chains from igus.
Dynamic applications with very small bend radii can quickly allow the copper cores of conventional cables to meet their mechanical stress limits. For confined spaces, igus has now introduced the new data cable series in the product range. The CF298 (unshielded) and the CF299 (shielded) have been tested intensively in the largest test lab in the industry with a floor space of 2,750 square metres, and have qualified for small bend radii down to 4xd in continuous motion. This enables igus to offer on the market the smallest bending factor for moving data cables in e-chains. This is made possible mainly by the combination of the new high-performance alloy conductor material and the highly flexible igus TPE outer jacket, which prevents cracks and breaks. The jacket material additionally offers the highest possible abrasion
For extremely heavy duty and tough environments The new generation of igus data cables is ideal for short, very quick movements, for example, in pickand-place machines or other very fast handling applications. They are also suitable for both indoor and outdoor applications due to their resistance to UV, low temperature and oil. Since the cables are certified according to ISO Class 1, they can also be used in clean rooms. The new data cables are designed for up to 40 million double strokes in e-chains. As a result, igus guarantees a life of 36 months here too, as for all chainflex cables. The CF298 and CF299 are now available from stock with various number of cores and conductor nominal cross-sections. For more details, visit www.igus.in
Professional Thermal Imaging Cameras for outstanding performance
T
he new FLIR T500-Series has the features professionals need to accurately troubleshoot hot spots and potential faults. With the 180-degree rotating lens platform and a bright 4-inch LCD, FLIR T530/T540 cameras are engineered to help users diagnose hardto-reach components in any environment. Advanced on-camera measurement tools, laser-assisted autofocus, and FLIR’s superior image quality ensure you’ll find and diagnose problems quickly. FLIR T500-Series designed to support advanced thermographers and IR service consultants in the power generation, electrical distribution, and manufacturing industries by focusing on resolution, speed, and ergonomics. The T500-Series offers inspectors the necessary support, comprehensive
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inspections in challenging conditions, especially when equipment is obstructed from view or difficult to access. Scan large areas from a safe distance, ensure crisp thermal imagery and spot-on temperature readings every time with laser assisted autofocus that maximises efficiency, safety and performance, helps to make critical decisions quickly, and designed to make your work easier. Key features • 180-degree rotating optical block and vivid 4-inch capacitive touch screen. • Up to 464x348 pixel resolution. • Temperature range upto 1,500 degree C. • Fast and precise laser-assisted autofocus. • Laser distance and on-screen area measurement. • Customisable work folders.
ID-1864
• Intelligent, interchangeable AutoCal lenses. • FLIR 2-10 warranty.
Contact FLIR Systems India Pvt Ltd 1111, D Mall, Netaji Subhash Place, Pitampura, New Delhi – 110034 Tel: +91-11-45603555 Fax: +91-11-47212006 E mail: flirindia@flir.com.hk Electrical & Power Review
power brand
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Electrical & Power Review
june 2017
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765KVSubstations
GlobalPresence
ServiceNetwork
DEsigned For You to test DEsigned DEsignedFor ForYou Youtototest test Corona Camera Corona Corona Camera Camera
Insulation Tester Winding Resistance Insulation Insulation Tester Tester Hipot Tester Corona Thermal Imager Winding Winding Resistance Resistance Primary Current Injection (HD) 640x480 Hipot Hipot Tester Tester Thermal Thermal Imager Imager Primary Primary Current Current Injection Injection (HD)(HD) 640x480 640x480 Cable Fault Location 140 kv Dc / 350 kv Ac Cable Cable Fault Fault Location Location 140140 kv Dc kv /Dc 350 / 350 kv Ac kv Ac
For Additional 1 Year Warranty
Loop Impedance meter Power Quality Analyzer Tower Foot Resistance Earth Resistance Cable Route Loop Loop Impedance Impedance meter meter Active Filter upto 600 A (Impulse Method) 3p, 4p, 3p+c, 2c Location Power Power Quality Quality Analyzer Analyzer Tower Tower FootFoot Resistance Resistance Tower Earth Earth Resistance Resistance Cable Cable F Route Route oot Re Passive Filter upto 525 V Active Active Filter Filter upto upto 600600 A A (Impulse (Impulse Method) Method) 3p, (Impulse 4p, 3p, 3p+c, 4p, 3p+c, 2c 2c Location Location Me Passive Passive Filter Filter upto upto 525525 V V
Request for a Demo : india@sonel.in Approved till 765KV Substations Approved Approved till till
765KV 765KV Substations Substations
1B, Block IV, Natwest Vijay, Velachery Main Road, Pallikaranai, Chennai - 600 100.
Request for a Demo : india@sonel.in Request Request for for a Demo a Demo : :
india@sonel.in india@sonel.in 1B, Block IV, Natwest Vijay, Velachery Main Road, 1B, Block 1B, Block IV, Natwest IV, Natwest Vijay, Vijay, Pallikaranai, Chennai - 600 100. Velachery Velachery MainMain Road, Road, Pallikaranai, Pallikaranai, Chennai Chennai - 600- 600 100.100.
UseCode SONAD100
50 + Countries National Sales & Global Service Network 50 50 + Countries +Presence Countries Ap National p National Sales r Sales o & &
Global Global Presence Presence 765 Service Service K Network Network V
sales@sonel.in
www.sonel.in
For Additional 1 Year Warranty
For For Additional Additional 1SONAD100 Year 1 Year Warranty Warranty Use Code
Reque Use Use Code CodeSONAD100 SONAD100 sales@sonel.in
+91 44 426 427 28
www. sonel. in www. www. sonel. sonel. in in
india@
+91 44 426 427 28 Block 1B, IV sales@sonel.in sales@sonel.in V elacher y M +91 44 +91 426 44427 42628 427 28 Pallikaranai
zero Largest Test Lab. Widest Choice. 36 Month Guarantee.
... zero Downtime ... From #1 in moving cables.
230 m long travel
torsion
chemicals
vertical
-40 °C / cleanroom
10 m/s speed
HYBRID
TORSION
FOC
CAT7
Zero Downtime solutions for your toughest moving cables: chainflex cables are developed and tested in the industry’s largest test lab. With 600 parallel tests on 2750 m2, 1.4 million electric measurements and 2 billion cycles per year, you find cables that solve your toughest ”zero downtime” challenge. And with up to 7 motion quality classes, you find just the right cable for your application - for less money. 1244 cables from stock make chainflex the largest motion cable range - for torsion, motor, servo, hybrid, control, data, BUS, ethernet and FOC cables. Calculate life online and order today with a 36 month guarantee.
MEASURING
BUS
®
®
plastics for longer life
®
Check out more than 30 test reports here: igus.in/chainflextests
igus (India) Pvt. Ltd. 36/1, Sy. No. 17/3, Euro School Road, Dodda Nekkundi Industrial Area - 2nd Stage Mahadevapura Post Bangalore - 560048 Phone +91-80-45127800 Fax +91-80-45127802 info@igus.in ®
Postal Registration No: MNE/290/2016-18 WPP License No: MR/Tech/WPP-231/NE/2017 • License to post without prepayment • Date of Publication: 1st of every month Date of Posting: 1st and 2nd of every month • Posted at Tilak Nagar PO, Mumbai - 400089 • English • Monthly
The lightest protection test set and calibrator Our 3-phase test set CMC 430 is the newest member of the CMC family and combines its outstanding performance as a relay tester and calibrator with hybrid measurement and recording facilities. Its lightweight and rugged design ensures excellent portability. Appropriate software tools also allow numerous applications from quick manual testing to distributed scheme tests which makes the CMC 430 a highly flexible solution. Discover our new CMC family member. Visit us at ELECRAMA 2018, March 10 -14, Hall H1, Stall H1B28 www.omicronenergy.com/newCMC430
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