WRT-10D : Winding resistance tester with Demagnetisation circuit

The WRT-10D is a High performance & High accuracy winding resistance tester, this unit has a built in Demagnetisation circuit to automatically or manually, demagnetize the transformers and avoid situations where the Current Transformer could cause the protection circuits to trip when re-energizing.

Application

Winding resistance testing is an important part of power transformer maintenance or manufacturing quality assurance program. Transformers and large motors are subject to vibrations, overloading and environments with large temperature variations. With winding resistance measurements it can be determined if the connections are made correctly and that no opens of shorts are present. Tap changers of power transformers are particularly critical with several contacts and switches. The WRT-10D is very effective in detecting Tap changer abnormalities.

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