the test rig is a plc based and is used for conducting the following tests on the coil. 1. High voltage ac/dc test (100v- kv & leakage current 0 - 20ma) 2. Insulation resistance test (100 -1000vdc & 1k - 1g ohms) 3. Impulse winding test (100v - 3000vdc) 4. Resistance test with tempreture componsation (1m - 10 ohms)