Power distribution safety operation procedures - Solutions - Huaqiang Electronic Network

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First, stop the power transmission sequence

1, high voltage isolation switch operation sequence:

(1) Power failure operation sequence:

A. Disconnect the low-voltage shunt air switch and disconnect switch.

B. Disconnect the low voltage main switch.

C. Disconnect the high pressure oil switch.

D. Disconnect the high voltage isolation switch.

(2) The power transmission operation sequence is reversed to the power failure sequence.

Second, the low-voltage switch operation sequence:

(1) Power failure operation sequence:

A. Disconnect the low-voltage shunt air switch and disconnector.

B. Disconnect the low voltage main switch.

(2) The power transmission sequence is opposite to the power failure.

Third, the switch operation procedures

1. For high-voltage dual-supply users, for the operation of switching, it is necessary to contact the power supply bureau in advance, obtain the consent or pull the notice from the power supply bureau, and proceed according to the prescribed time.

2, the switch operation must first send the idle all the way, and then stop the original one way, so as to avoid the user affected.

3. If the fault has not been identified, the switchover operation shall not be carried out.

4. Two switch switches should be locked immediately after each operation, and the warning card should be hung at the same time.

5. The switching operation must be carried out by two people (one person operation, one person supervision).