... applied Test Sets Composed of:High Accuracy CT site Calibrating Test Sets are composed of ... Instrument Transformer Tester, Model ITC-C,-Standard reference CT, Model HL-62CS-Current load box ,model FY ... -Harmonic control >40db -Polarity Check/ Indication Standard reference CT, Model HL-62CS -Rated load : 5VA,1VA PF ... ,400, ² 500,600,630,750,800,1000,1200,1250,1500,160,2000,2500,3000,3150,4000,5000A ...