What is the difference between transformer leakage test and insulation resistance measurement?
The principle of measuring leakage current is the same as the principle of measuring insulation resistance. The defects can be approximately the same, but because of the high test voltage, it is easy to expose the weakness of the insulation itself.
Measurement leakage current and insulation resistance compared to the following characteristics:Test voltage is high;Leakage current is monitored by micro meter at any time. The sensitivity is high, and the repeatability of measurement is better;According to the leakage current value, the insulation resistance value can be converted.
