... below:-Instrument Transformer Tester, Model ITC-C,-Standard reference CT, Model HL-62CS-Current load box ,model FY-96, two piece, ... the ratio mistake. Technical Specifications: Instrument Transformer Tester, Model ITC-C -Input: Power Frequency: 50Hz±0.5Hz, Power Voltage ... 1A -Accuracy class:0.02S -Temperature: 5°C ~ 40°C,Humidity: <80% Test control, model TC20 : -Capacity: 20kVA+500VA (tiny adjusting ...