POLE DISCREPANCY RELAY(PD) for CIRCUIT BREAKER

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  • เผยแพร่เมื่อ 28 พ.ย. 2024
  • This is a short video for operating procedure of Pole Discrepancy Relay for 3-Ph Circuit Breaker having separate Pole.Mainly Used for 220 KV and higher rating of CB and located at CB end.

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