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Power transformer experts for the mining industry – JA Tech Inc
JA Tech takes pride in our customers’ satisfaction of a transformer that is offloaded, assembled, with oil processing and testing done the right way.
Since our inception in 2003, JA Tech has established relationships in the potash industry built on trust. Our clients trust that we have the experience and expertise to keep their facilities operating day and night. As a provider of field, technical, and engineering services and products which form an electrical power system, our mining customers have come to know and trust our capabilities on their sites.
JA Tech is a certified Aboriginal Business with the CCAB, as well as a member of the First Nations Power Authority (FNPA) and Indigenous Manufacturing and Contracting Network (IMCN) of Saskatchewan.
Power Transformer Experts
JA Tech takes pride in our customers’ satisfaction of a transformer that is offloaded, assembled, with oil processing and testing done the right way. As part of our services offered for substation construction, we also offer assembly and oil filling, internal inspections, repair, oil regeneration, and degasification of power transformers. We own our own degasification trailer and picker trucks. Our customers appreciate the level of monitoring and trending data that we can provide for vacuum, temperature, moisture, and oil volume. We also have an onboard air dryer replacing traditional bottled air for assembly and internal work.
Instrumentation and Automation Solutions
Over the last few years, our instrumentation and automation capabilities have grown to include 12 to 15 technicians. Our technicians perform project management, on-site services such as calibrations, testing and final commissioning. We specialize in plant shutdowns as well. If your PLC/DCS systems requires an upgrade from legacy to current products we can help.
High-Voltage Cable installation and Jointing
JA Tech performs specialized installations of high-voltage cables in addition to terminations and testing. We have been involved in several 230kV and 138kV cable termination analysis and replacements, as well as full installation, termination, and testing of new high-voltage cables. Our in-house representatives are certified in PFISTERER© brand high-voltage terminations, including the EST style and Connex up to size 6S. As we own all the specialized tools to perform this work, there is no need for us to subcontract any equipment. This allows us more flexibility with the client to ensure they are getting the quality and safety standards they require. Our cable jointers are experienced in many different brands of medium- and high-voltage cable preparation techniques. References are available, contact our office for more details.
Engineering Services and Substation Automation
From feasibility all the way through to commissioning and start-up, we have the ability to support any electrical project through its complete life cycle. JA Tech offers engineering and design services covering all aspects of an electrical system, including high-voltage greenfield
and brownfield electrical design, power system studies, protection relay upgrades, and everything in between. Leveraging the latest technologies such as IEC 61850, we are proud to offer unique, custom-tailored solutions for our customers, and take special design consideration for safety, constructability, maintainability, and reliability of the final product. For substation automation, we use IEC 61850 design and implementation, along with multivendor IED configuration and GOOSE messaging. We specialize in RTAC configuration and HMI design with support for DNP3, Modbus/RTU, Modbus/TCP, Ethernet/IP, and SEL protocols.
Partial Discharge Testing
Knowing and understanding the condition of your assets is vital to controlling the risks presented
Technical Field Services Electrical Field Services Overhead Crane Services Instrumentation Field Services
Engineering Services Substation Automation Protective Equipment Testing Variable Speed Drives
to your business. As part of our predictive maintenance offering, JA Tech performs both online and offline partial discharge (PD) testing. We have also completed permanent Radio Frequency Current Transformers (RFCT) installations on medium-voltage cable shields for customers so their cables may be monitored at regular intervals. This is especially important on aged cables and feeders that cannot easily be isolated for offline testing. We have worked closely with companies like EA Technologies to ensure a quality installation that is functional on a variety of different switchgear brands.
Permanent Radio Frequency Current Transformers
Partial discharge is a known killer of medium-voltage switchgear and cables. Online, non-invasive PD testing of switchgear is easily accomplished from outside closed cubicles through ultrasonic and transient earth voltage (TEV) sensing. Testing of cables is a bit more invasive. Cable testing is typically done through the use of split-core clamp-on RFCT. These are connected around the ground straps of the shielded cables to measure the PD current as it returns from its source.
Each RFCT has a coaxial cable that needs to go to a connector accessible outside the switchgear. These connectors provide an attachment point for the test gear after re-energization. The connectors should be convenient to access and can often be mounted in the relaying/metering panel. If you have MV applications you would like to discuss give us a call. s
JA Tech is a provider of construction and technical service for all equipment and apparatus that form an electrical power system. We provide some of the most skilled labour and up-to-date equipment in the mining, industrial and utility sectors. Through integrity, quality and commitment we achieve the best for our customers.
Additional Specialized Services: • Transformer Assembly and Oil Processing • On-line Diagnostic Assessment Testing • Specialized Cable Testing including Partial Discharge Testing • Fiber Optic Fusion Splicing • Medium and High Voltage Cable Terminations including Pfisterer Terminations
Integrity • Quality • Commitment
