What Are The Precautions When Operating A Vertical Fuse Disconnector?

Regarding vertical fuse switch disconnector, I have sorted out a lot of relevant knowledge for you, hoping to help you in need. Those who have read the previous article should know the matters that need to be paid attention to when operating nhrt40 vertical fuse switch disconnector, then do you know what matters need to be paid attention to when operating 35KV high-voltage disconnectors? You can't be careless when operating this.

Matters that need to be paid attention to when operating 35KV high-voltage disconnectors:
1. When the high-voltage disconnector is far away from the circuit breaker and it is difficult to use mechanical interlocking, the lock key of the high-voltage disconnector can be stored at the circuit breaker or on the control switch operating handle of the circuit breaker. Only after the circuit breaker is disconnected, can the key be taken out to open the corresponding disconnector to avoid pulling the switch with load;
2. Install a mechanical interlocking device for the grounding wire at the operating mechanism of the high-voltage disconnector. Before the grounding wire is not removed, the disconnector cannot be closed.
3. During maintenance, the high-voltage disconnector with a grounding knife should be carefully checked to ensure that the mechanical interlocking device between the main blade and the grounding knife is in good condition. The grounding knife should be opened first when the main blade is closed.
4. A mechanical interlock should be installed between the high-voltage disconnector and the circuit breaker. A connecting rod mechanism is usually used to ensure that the disconnector cannot be opened when the circuit breaker is in the closed position.
5. The auxiliary contacts on the operating mechanism of the oil circuit breaker are used to control the electromagnetic lock so that the electromagnetic lock can lock the operating handle of the high-voltage disconnector to ensure that the operating handle of the high-voltage disconnector cannot be operated before the circuit breaker is disconnected.