Method to export generator overvoltage protection action:
1. Shutdown: Disconnect the generator circuit breaker, turn off the water, close the main steam valve, and shut off the water conduction to the turbine generator. The shutdown of single units is called a complete shutdown.
2. Disconnect the fire magnet: Disconnect the generator circuit breaker, demagnetize and unload the turbine.
3. Unplug: Turn off generator breaker and turbine load shedding.
4. Reduce output force: Reduce the output of the main motor to a given value.
5. Reduce the scope of the defect. Open other programmed circuit breakers, for example by disconnecting the bus link breaker in a dual bus system.
6. Program triggering: For turbine generator, first close the main steam valve and wait for the reverse power relay to operate, then trip the circuit breaker and allFirst ume the magnetic field for the turbine generator. close the water guide vane to the no-load position to trip the motor breaker again and demagnetize it.
7. Decrease Excitation: Decrease the excitation current of the generator to a given value.
8. Excitation switching: Switch the excitation power from the operating excitation power system to the standby excitation power system.
9. Factory Power Switching: Switch from factory working power to standby power.
10. The outlet operates in a separate circuit.
11. Send sound and light signals.