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Adjust ammeter ANSl autotransformer breaker contacts bus bars C.T. ratio cable cable-hole calibration circuit breaker circuit current closing mechanism contactor current test set current transformer diagram electrical full-scale deflection galvanometer H.V. circuit H.V. winding hi-pot testing high current test high voltage impedance voltage instrument insulation test meter interlock Introduction This module Key technical words limit switch line current lnsulation test load-loss low voltage measure Meter movement multimeter multiplied no-load-loss normally objectives Upon completion ohmmeter open-circuit test operated Performance objectives phase plug board plunger polarity power factor power supply primary QTEK range switch rated current rated voltage ratiometer relay resistor routine tests secondary winding short-circuit test shown Shunt trip coils single-phase sliding contact solenoid specific switchgear Test items test leads test voltage three-phase power tion transformer under test True or false turns-ratio Unit under test variable voltage controller voltage regulator voltmeter wattmeter readings wheatstone bridge winding resistance zero