How To Check Insulation Resistance. 1 1996 How is IR testing done in view of the fact that at least 80 of electrical maintenance and testing involves evaluating insulation integrity. An infinite resistance would be the perfect result.
Resistance is measured between the Line and Earth terminals where current will travel through coil 1. If the insulation resistance is found high we can say an equipment or system is fine otherwise its not. Ad Buy Cutting holemaking shaping tools.
Repeat the test between each windings and note down the readings.
Timed ratio tests are used to detect insulation resistance and include the polarization index PI and dielectric absorption rate DAR. Demonstration shows how to set up your Megger MFT tester and carry out. Resistance is measured between the Line and Earth terminals where current will travel through coil 1. Collect basic details about the motor.
