ROUTINE TESTS
•Conversion ratio measurement and connection group determination
•Measurement of winding resistances
•Applied-voltage test
•Induced-voltage test
•Measurement of no load loss and current, Measurement of load loss and impedance voltage
•Insulation resistance measurement
•Core and body insulation checking test, Leakage test

TYPE TESTS
•Temperature rise test,
•Lightning impulse voltage test
•Measurement of audible noise level
•Mechanical strength test against short circuits

SPECIAL TESTS
•Capacity and insulation loss factor measurement(Double test)
•Insulation resistance measurement (Megger test)
•Transformer oil dielectric puncture strength measurement
•Measurement of harmonics (No load current)
•Partial discharge test
•Zero component impedance measurement