Learn how to test a transformer: insulation resistance, TTR, winding resistance, polarity, continuity, and dielectric checks.

Insulation resistance testing is one of the most useful predictive maintenance tests available. This test gives insight into the integrity of insulation. The higher the resistance across the ...

Make sure you follow these steps for safe and accurate testing. Before actually conducting insulation resistance tests, you need to prepare for them. Here are some steps you don’t want to skip: • ...