Current Transformer (PT)

General Particulars 11KV 33 KV
Highest System Voltage( H.S.V.) 12 KV ( r.m.s.) 36 KV (r.m.s.)
Power frequency dry/ wet withstand voltage on primary winding for one minute 28 KV ( r.m.s.) 70 KV ( r.m.s.)
Lightning Impulse withstand voltage (1.2 x 50 μs ) 75 KV ( r.m.s.) 170 KV ( r.m.s.)

 

Specific Particulars  
Number pf Phases 3 or 1 unearthed or earthed 3 or 1 
unearthed or earthed
1 earthed
Rated Transformation Voltage Ratio 11 or 11—
Number of Secondary Windings Upto 3
Output Burden Upto 200VA
Accuracy Class For Metering : 
0.2, 0.5, 1.0 & 3.00. For Protection:                                                  
3P, 6P
For 3 Phase RVT:
5PR, 10PR
Voltage Factor 1.2 Continuous & 1.5 for 30 Sec or 1.9 for 30 Sec or 1.9 for 8 hours