Finally, winding resistance tests are invaluable when fault finding transformers, as many transformer faults or problems will cause a change in the DC resistance measured from the bushings.

The WA 2293 is a winding analyzer that is optimized for testing three-phase power and distribution transformers. This test set uniquely combines winding resistance measurement, transformer turns ratio ...

Then, the per-phase resistance should be 0.67 times the amount of resistance measured for the transformer’s line terminals. No matter what kind of winding the transformer has, technicians should ...

Other key features of Megger’s new and innovative TRAX test sets include state-of-the-art transformer winding resistance measurements with true DC test currents up to 100 A and up to 50 V ...