... applied Test Sets Composed of:High Accuracy CT site Calibrating Test Sets are composed of ... Transformer Tester, Model ITC-C,-Standard reference CT, Model HL-62CS-Current load box ,model ... Harmonic control >40db -Polarity Check/ Indication Standard reference CT, Model HL-62CS -Rated load : 5VA,1VA ... -Output current: 0~5000A -Surface temperature rise: <75 °C -No-load consumption;<2% -Continuous working at ...