1. Restore the water supply as soon as possible. If cooling water is restored within 30 seconds, a complete inspection of the cooling system and various parameters should be performed. The inlet water pressure must be increased immediately to restore water supply. or the motor must be uncoupled and stopped immediately. Especially the water supply to the rotor coils.
2. If it turns out that the water flow is blocked during operation and the generator water cutoff signal is sent, be prepared to face the accident if the water cutoff protection refuses to work.
3. If the water cut-off time reaches 30 seconds and the water cut-off protection refuses to work, the generator circuit breaker and excitation switch should be manually opened immediately. must be identified and the operator must check the time immediately.