OLTC Scan on Power Transformers

March 1, 2017

New dynamic resistance measurement function for the CPC 100

Dynamic Resistance Measurement (DRM) is a new method which can be performed as a supplementary measurement in order to analyze the switching process of an on-load tap changer (OLTC) on power transformers. By using this non-invasive testing method, failures can be detected without opening the OLTC compartment. As a result, the reliability of the OLTC can be improved, maintenance costs can be reduced and most of all, unexpected and expensive OLTC and power transformer outages can all be avoided.

Enjoy reading and watch out for our paper of the month regularly!

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