Let me answer you:
First of all, if the general speed exceeds 115% and the governor refuses to move, it will stop in an emergency, which is achieved through surveillance and protection.
If overspeed protection is set, the value is 140%. If the value exceeds 140% and the machine still does not trigger, it will cause a problem with the system (including). setting value or failure of protective equipment, etc.). It's time to stop the machine manually. If it cannot be stopped manually, it is time to close the water inlet valve while waiting for emergency equipment. Otherwise, we will wait for Feiyi and the overhaul, haha, it will be perfect
During the operation of the electrical system, if there is excess reactive power, the system voltage will increase, affecting the normal operation of the system. When the excitation current is gradually reduced, the generatoreur switches from providing reactive power to the system to absorbing reactive power, which causes the generator to adjust to a phase-advanced operating state. It also adjusts active and reactive power.