... composed of seven items as below:-Instrument Transformer Tester, Model ITC-C,-Standard reference CT, Model ... and the ratio mistake. Technical Specifications: Instrument Transformer Tester, Model ITC-C -Input: Power Frequency: 50Hz±0 ... 15,20,25,30,40,50,60,75,80,100,120,150,160,200,250,300,315,400, ... class:1.0 -Timing range:0-999S Primary Current Injector, model SL-7: -Rated capacity:20KVA-Input voltage ...