Related faults and drying methods of Perkins generator

In the use of diesel generators, there will be some problems, such as unstable generator speed, traveling phenomenon, and there are a lot of precautions in the process of generator disassembly. Next, you will be introduced to the related generator failures and drying methods for your reference.

I. Generator related failures and solutions

The cause of diesel generator speed instability

1, the idle speed is not smooth, mostly caused by the failure of the governor. There are several main reasons for this.

(1) Fly ball wear

(2) The idle spring elasticity is poor or improperly adjusted

(3) Improper adjustment of the speed stabilizing spring

(4) low pressure oil supply is not smooth or contains water and air

(5) The camshaft cone bearing of the injection pump supporting the CAM is worn too much

(6) The fuel injection pump supply is uneven, the oil supply is not correct or the injection is bad

(7) insufficient cylinder compression force

2, "car" refers to the diesel generator in the range of low and medium speed, the cycle is longer and more regular when the phenomenon of fast and slow, this is the speed response too lag behind the actual speed change. The reasons are mainly as follows.

(1) The internal lever of the governor is loose due to wear of the connecting pin hole

(2) The oil supply tooth rod is not flexible enough

(3) Improper adjustment of the speed stabilizing spring

Two, the drying of the generator

The newly installed synchronous generator should generally be dried before operation. If the insulation resistance meets the requirements, it can not be dried, but the load should not exceed 50% of the rated capacity within 24h from the start of operation.

When the generator in operation is stopped for maintenance or outage time exceeds the specified limit and the insulation resistance is lower than the specified value, it must be dried. If it is determined that the surface is wet, it can be dried with load drying method. Generators that are soaked by water or steam pipe leaks must be dried.

Jiangsu Meao Power Technology Co., Ltd. is an important manufacturer of diesel generators. The company mainly manufactures and sells diesel generator sets with power of 3-3000kW, mobile power station of 24-600kW, Marine emergency diesel generator set of 24-800kW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, static speaker, mobile lighthouse, container, etc.) diesel generator At the same time, we are engaged in generator set maintenance and after-sale service of generator set accessories.