Empowering Energy with Precision Transformer Testing
Power transformers are essential at the highest levels of the energy chain. They enable the interconnection of systems operating at different voltage levels, stepping up voltage for efficient long-distance transmission from power plants, and stepping it down as electricity approaches populated areas. These transformers are critical in the generation and transmission phases, forming the backbone of national and international power networks.
As electricity nears its final destination, distribution transformers take over. Their job is to “step down” the high-voltage electricity from transmission lines to a safer, lower voltage suitable for everyday use in homes, businesses, and industries. Without them, the energy that lights our cities, powers our industries, and fuels our digital lives would be unusable and dangerous.
In industrial environments—such as manufacturing plants, oil and gas facilities, mining operations, and data centers—distribution transformers are at the heart of operations. They feed power to heavy machinery, control systems, and critical infrastructure, ensuring smooth and efficient performance. A single fault in power delivery can lead to costly downtime, safety hazards, or data loss, making the reliability of these transformers absolutely essential.
At KEMA Labs , we support the entire lifecycle of both power and distribution transformers.
We conduct rigorous testing up to the highest voltage and power ratings in use today, in accordance with international standards such as IEC 60076 for oil-filled transformers, IEC 60076-11 for cast resin transformers, and ANSI C57.12. Our advanced high-power and high-voltage laboratories are equipped to perform complete type testing, including demanding short-time current tests. We also offer on-site testing for even the largest transformers, including those transported by barge to remote installation sites.
Together, power and distribution transformers form a seamless chain that brings energy from its source to its point of use—safely, efficiently, and reliably.
Dedicated quality assurance services complete the entire Quality Assurance process of this key assets with:
- Supplier Evaluations
- Factory Audit
- Failure Investigations
- Inspections of FAT and SAT
Capabilities and Ratings – Power Transformers
- Three-phase and single-phase transformers
- Special application transformers (e.g., railway transformers at 25 Hz or 16 2/3 Hz)
- Rated power above 2,500 kVA
- Oil-filled or cast resin types
- Set-up transformers for wind turbine generator installations
- Other special transformers available on request
Products and Standards
Oil-immersed power transformers
- IEC 60076-1, -2, -3, -5, -10
Dry-type power transformers
- IEC 60076-11
Instrument transformers
- IEC 60044-1, -2, -3, -5, -7
- IEC 61869-1, -2, -3, -5
We also perform additional tests in accordance with national standards and specific customer requirements upon request.
KEMA Labs, a CESI Group Business Unit, is a global leader in third-party conformity assessment services, testing, inspection, and certification of electromechanical components. Our certificates and reports are internationally recognized by both manufacturers and purchasers.
KEMA Labs offers a range of deliverables including Certificates, Type Test Reports, Design Verification Reports, Test Reports, and Inspection Reports and Certificate of Conformity. These documents certify the quality and performance of products based on rigorous testing standards and help facilitate global trade by ensuring compliance with international regulations.
