Distribution Transformers.

The final part of the distribution system at medium voltage consists of the distribution transformers.

Due to the low-impedance voltage, this type of transformer will not substantially limit the short-circuit current in the case of a fault on its secondary side. It is therefore common practice that distribution transformers have to be type tested to their ultimate short-circuit conditions. Distribution transformers may be oil-filled (IEC 60076) or cast resin type (IEC 60076-11). KEMA can perform complete type tests, which includes all relevant tests in the High-Power Lab and the High-Voltage Lab. Regularly, a manufacturer offers a complete range of five distribution transformers, which can be very efficiently certified in one test run.

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