... 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 ... ² “X”,“Y”——Values Displayed ² “Dx, Dy”——Quantified Error Dx=2, Dy=5 -Working Range ² Current:(1%-149%)In ... Harmonic control >40db -Polarity Check/ Indication Standard reference CT, Model HL-62CS -Rated load : 5VA,1VA ...