The MTO250 Transformer Ohmmeter is used to:
- Perform field testing of CT, PT, power transformer windings and their associated tap changers, and motors/generators.
- Verify factory winding resistance test results.
- Perform factory heat run tests.
- Diagnose and pinpoint problems such as the presence of defects in transformers, such as loose connections, and poor tap changer operation.
- To validate proper “make-before-break” operation of load tap-changers (LTC).