The phenomenon and treatment of the automatic tripping of Perkins generator?

What happens when a Perkins generator automatically trips? How should we deal with these phenomena? Let me share with you:
1. Phenomenon
1. The generator main switch, excitation switch and factory branch switch trip.
2. The system frequency is reduced and the voltage is abnormal.
3. Corresponding signals appear on the control panel and the protection device of the generator-transformer group.
2. Processing
1. Check the automatic commissioning and load conditions of the factory’s high backup transformer.
2. Confirm the trip of the switch, and check and record the situation of each protection action to judge the nature and scope of the fault.
3. To find out whether the trip is caused by personnel misoperation, protection misoperation or secondary circuit work, it is not necessary to carry out internal inspection and re-parallel.
4. If there is an internal failure of the generator, the main protection action should be used to trip the switches and excitation switches of the transformer group. If the tripped switch refuses to operate, it should be manually opened immediately.
5. Open the corresponding knife switch to take safety measures, measure the insulation of the generator and conduct a comprehensive inspection and make a record. Generators are not allowed to be incorporated into the system without the consent of the Chief Engineer.
6. If non-full phase occurs when the main switch trips, the switch failure protection starts to remove the fault. If the failure protection does not work, the bus tie switch and all switches connected to the same bus as the generator should be opened immediately.
7. After the fault is removed, the normal operation mode of the 220kv substation will be restored.
The above is the phenomenon and treatment of the automatic tripping of the Perkins generator. I hope it can help you use the Perkins generator better.