Safe operating procedures for power distribution rooms

1. Strictly implement the "operating ticket system" for accident handling and when closing a single knife switch, operating tickets can be used.

2. The operator and guardian should check whether the operation ticket filled in is correct based on the simulation diagram or main connection line, and have it reviewed and signed by the relevant personnel.

3. Operations must be carried out in the order of operations. Make a mark for each operation and review after all operations are completed.

4. The following items are included in the operation ticket

A. The position of the switch and knife switch that should be closed

B. Check whether the grounding wire is removed

C. Check load distribution

D. Install and remove ground wire

E. Install or remove controller wiring or voltage inverter circuit fuse

F. As soon as you switch the route and check whether there is no voltage, etc., you should check whether the operating power supply is normal.

5. If there is any doubt in the operation, you should stop immediately and report to the relevant personnel to clarify the problem before proceeding. , it is not allowed to change the operation ticket without authorization, and it is strictly prohibited to operate on duty after drinking.

6. When the capacitor switch trips during operation, the operation should be stopped. Only after inspection and confirmation that there are no abnormalities can the test delivery be carried out.

7. When an important circuit trips and is accompanied by a large impact, it is allowed to force it again without checking. If it fails, it is strictly prohibited to reuse it. When there is reclosing and there is no large impact, it is allowed not to If the inspection is forced again, if it is unsuccessful, it is strictly prohibited to close the circuit breaker again. If there is reclosing protection, the cause should be identified in time and reported to the superior.

8. The telemetry capacitor or cable should be fully discharged before and after installation.

9. When the transformer preparation signal is activated, the reason should be promptly identified and reported to the superior.

10. Before operating the voltage sensor, the corresponding voltage loss protection and metering devices should be considered.

11. Under normal circumstances, the generator should be in a self-turning state. When cleaning the generator and ancillary equipment, the function selection switch should be turned off. After the work is completed, it should return to normal.

12. When there is a high-voltage grounding phenomenon or when repairing electrical equipment during thunderstorms, insulated shoes must be worn. Switching operations are prohibited during thunderstorms, and electrical equipment during inspections must not be close to the lightning arrester.

13. Transformers should be inspected after protection tripping (quick-break, differential, oil-immersed, dry-type transformers, and heavy gas).

14. Switching operation sequence:

Power failure: load side leakage breaker - load side knife gate - bus side knife gate.

Power supply is in the opposite order of operation

15. After a power outage on electrical equipment, even if there is a power outage, the equipment and equipment must not be touched before the relevant knife switches are opened and safety measures are taken. Fence in case of unexpected calls.