What are the three methods of electrical operation?

Electrical operation has three methods: local operation, remote control operation and program operation; and electrical operation refers to changing the status of electrical equipment, changing the operating mode of the system, adjusting the relay protection setting value, and starting the device. The general term for the operation execution process of deactivation, secondary circuit switching, automatic device switching, testing, etc.

# Electrical operation has three methods: local operation, remote control operation and program operation.

Electrical operation refers to the conversion of electrical equipment status, change of primary system operation mode, adjustment of relay protection settings, start and stop of devices, secondary circuit switching, automatic device switching, testing, etc. The general name of the operation execution process.

Common operations

1. Single operation: means that after one operation item is completed, there will be no other associated electrical operations.

2. Inverted busbar: refers to a substation (switching station) with double busbar wiring, which switches part or all of the lines and transformers on one set of buses to another set of buses for operation or hot standby.

3. Load reverse: refers to the operation of transferring the load of a line (or transformer) to other lines (or transformers) for power supply.

4. Paralleling: refers to the operation of parallel operation between the generator (condenser) and the power grid or between the power grid and the power grid with the same phase sequence and allowed voltage and frequency.

5. Decoupling: refers to the process of disconnecting the grid circuit breaker through manual operation or protection and automatic device actions, causing the generator (condenser) to disconnect from the grid or the grid is divided into two or more parts for operation. .

6. Loop closing: refers to the operation of closing the network composed of lines, transformers or circuit breaker strings.

7. Synchronous ring closing: refers to the automatic or manual ring closing operation after the synchronization is detected by automated equipment or instruments.

8. Delooping: refers to the operation of opening and closing a closed network composed of lines, transformers or circuit breaker strings.

9. Charging: refers to the operation of making unloaded lines, busbars, transformers and other electrical equipment have nominal voltage.

10. Phase verification: refers to using instruments or other means to check whether the phase and phase sequence of the two power supplies or loops are the same.

11. Phasing: refers to checking whether the three-phase signs are consistent with the operating system before putting new or reconstructed lines or substations into operation.

12. Substitution: refers to the operation of using a bypass circuit breaker instead of other circuit breakers.

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