For current tansformer: ratio: 5a/5a to 5000a/5a & 5a/1a to 5000a/1a, va/cl ; 0 va to 50va cl from 0.2, 0.2s, 0.5, 0.5s, 1.0, 3.0 5.0 Str: upto 40ka/3, upto 33 kv For potential transformer: 1phase & 3 phase draw out type upto 33 kv, class from 0.2 to 1.0 Voltage factor : 1.2 continous , 1.5 for 30sec.& 1.9 for 8 hrs