ZCT
ZCT (Zero-phase-sequence Current Transformer)
is used widely for the detection of the ground fault current in low or high voltage distribution power line. Especially, the use of pole air switches equipped with ZCT is increasing to prevent the extended accident caused by the ground fault. The accurate detection of low level ground fault is needed from the view ofearly stage discovery. The internal residual current of ZCT must be small as possible for the detection of low level groundfault.
| รุ่น |
| ZCT40S |
| ZCT60S |
| ZCT80S |
| ZCT120S |
| ZCT210S |
