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Product news
RIB COOLED INDUCTION MOTOR IS READY FOR DUTY
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ABB’S RIB COOLED HIGH VOLTAGE motor is available from stock for immediate delivery to the UK. The motor provides high power density for compact installations, offering more power per kilogram when compared to conventional motors. This often allows operators to use a motor one frame size smaller than conventional products require, making optimal use of available space and providing suitability for retrofit applications. Stock frame sizes range from 315 to 450 with ratings of 200 to 1400kW. Both direct-online (DOL) and variable speed drive (VSD) variants are available for use in hazardous and safe areas.
Rib cooling provides superior air flow for internal cooling, reducing the risk of overheating and unpredicted failures. The motor’s rigid, weight-optimised frame is engineered to minimise vibration, and it is provided with an ABB Ability Smart Sensor as standard at no extra cost. The smart sensor is the next step in digitising motor applications, turning mechanical equipment like motors, gearing, bearings and pumps into IoT-ready smart devices that can provide near real-time feedback on equipment performance, condition and efficiency.
The sensor fits directly to the motor’s chassis and can be installed and configured within a matter of minutes. Once installed, it measures parameters such as temperature, acoustics, vibration, energy consumption and magnetic field straight from the surface of the motor, and transmits it via the cloud to a dashboard from which it can be analysed, facilitating remote monitoring and predictive maintenance.
www.abb.com
CONNECTED MOTORS DELIVER HIGH EFFICIENCY LEVELS
NIDEC LEROY-SOMER HAS LAUNCHED Dyneo+, a range of super premium efficiency permanent magnetassisted synchronous reluctance motors. Combining the performance of synchronous permanent magnet technology with the easy set-up of induction motors, the motors have been designed to meet the most stringent requirements of industrial applications while offering them even more options using digitalisation.
Nidec Leroy-Somer has developed the range to incorporate all the benefits of induction and synchronous permanent magnet technologies, and in addition to offer significant advances in terms of smart drive solutions.
With an energy efficiency level above IE5, reaching the highest efficiency levels of IEC 60034-30-2 and NEMA Super Premium/ Ultra-Premium, Dyneo+ makes it possible to achieve substantial energy savings in real use on cycle at variable speed and load. As a consequence, the range is said to achieve the lowest total cost of ownership on the market.
The motor range has been developed alongside the Powerdrive F300 and the new Powerdrive MD Smart variable speed drives. Designed to optimise the Dyneo+ motor performance, this last generation of high power variable speed drives is fitted with a new HMI and a secured Bluetooth connection to enrich the user experience and fully benefit from the features of the new Systemiz application.
Systemiz is a unique interactive application which provides a wide variety of digitalised services, to facilitate the exchange of information between the systems and trigger the subsequent actions. In addition to instantaneous access to all the product literature, the application enables direct access to motor parameters for easy and intuitive drive setting by simply scanning a QR code on the nameplate.
acim.nidec.com/motors/leroy-somer
NEW SYNCHRONOUS GENERATOR MORE ECONOMICAL THAN REPAIR
Menzel’s synchronous generator.
MENZEL GREAT BRITAIN LTD HAS supplied a synchronous generator with a power rating of 11,380 kVA to Westfield Power Station in Scotland. The plant operated by the Independent Power Producer (IPP) Melton Renewable Energy UK Ltd had suffered a failure of its existing generator. Purchasing the replacement generator, which was delivered in only two weeks, was significantly more costeffective than a lengthy repair, as the IPP may incur revenue losses when the power supply is interrupted. It was fortuitous that a synchronous generator of suitable rating and performance class was readily available on the market, as this application and configuration are very rare, and such generators are usually manufactured with long lead times. Menzel Great Britain is a subsidiary of German motor manufacturer Menzel Elektromotoren, which maintains a very extensive inventory and is a specialist in customised adaptations at short notice and which was therefore well prepared to answer this urgent request.
A steam turbine powers the generator. It operates at 11kV supply voltage and weighs more than 35 tons. Menzel completed the various customer-specific interface modifications in the short time available. Preparing the shaft to match coupling interfaces was particularly complex, since it had to be shortened, machined for a smaller diameter, and the appropriate flange had to be weld-fitted and subjected to an ultrasound check, which ensured that the modification was sound. To match site requirements, Menzel also changed the cooling type of the replacement generator from IC 01 open-circuit ventilated to IC 81W air-water heat exchanger, building an adapter frame and mounting a suitable twin element heat exchanger from existing stock.
Westfield Power Station, which was commissioned in 2000, is the only biomass power plant in Scotland fuelled by poultry litter. It is a key partner to the region’s agricultural industry both for disposing of a highvolume waste product and as a supplier of power and fertiliser – the nutrientrich ash produced is a precious natural alternative to artificial fertilisers. The 9.8MW biomass steam power plant also stands out technologically as it is one of a limited few in the world utilising fluidised bed technology. The CO 2 savings compared to gas-fired power plants are considerable.
In another short lead time project, Menzel Great Britain’s parent company, Menzel Elektromotoren, has customised a motor for a compressor drive operated by Tata Steel, shipping it within just two weeks. A motor failure had stalled the booster air compressor, which is integral to one of the corporation’s Indian steelworks, providing oxygen necessary for steel production. Thanks to its modular warehousing strategy, Menzel was able to speedily configure a squirrel-cage motor to meet the customer’s specifications. The MEBKSL-type motor was electrically and mechanically adapted to enable installation and commissioning by the customer without further modifications of the motor or the site.
The motor, with an operating voltage of 6,600V and a rated power of 3,200kW was fitted with an air-to-air heat exchanger (cooling type IC 611). Menzel staff at the Berlin plant shortened the motor shaft, milled the shaft end, and produced intermediate plates to adjust the fixing dimensions to the existing installation site. The 2-pole motor was designed with sleeve bearings with two-wedge bearing shells to avoid any critical speed in the vicinity of the operating point of 2,987rpm. The motor is also designed for demanding conditions with ambient temperatures up to 50°C and humidity up to 95%. It features a tropicalised motor winding in temperature class “F” and the increased protection class IP55.
