发电机在我们的日常生活中必不可少，很多人虽然知道发电机，但是对发电机的原理及常见故障了解不多。下面，我们来看下，燃气发电机组的工作原理及常见故障分析。

Generators are indispensable in our daily life. Although many people know about generators, they do not know much about their principles and common faults. Next, let's take a look at the working principle and common fault analysis of the gas generator set.

1、发电机过热

1. Generator overheating

（1）发电机未按规定的技术条件运行，如定子电压过高，铁损增加；当负载电流过大时，定子绕组的铜损耗变大，监测仪器的指示器应检查是否正常。

(1) The generator does not operate according to the specified technical conditions, such as excessive stator voltage and increased iron loss; When the load current is too large, the copper loss of the stator winding becomes larger, and the indicator of the monitoring instrument should be checked for normality.

（2）进风口温度过高或进水温度过高，使冷却器堵塞。应降低空气或进水温度，清除冷却器内的堵塞。限制发电机的负荷，降低发电机的温度，直到故障消除。

(2) The cooler is blocked due to too high air inlet temperature or too high water inlet temperature. The air or water inlet temperature shall be reduced to remove the blockage in the cooler. Limit the load of the generator and reduce the temperature of the generator until the fault is eliminated.

（3）轴承润滑脂过多或过少，润滑脂应按规定添加，通常为轴承腔的1/2~1/3（上限为低速，下限为高速），且不超过轴承腔的70％为宜。

(3) If the bearing grease is too much or too little, the grease should be added as required, usually 1/2~1/3 of the bearing cavity (upper limit is low speed, lower limit is high speed), and should not exceed 70% of the bearing cavity.

2、发电机启动后，电压不能升高

2. The voltage cannot rise after the generator is started

（1）励磁回路断路，使电压上升不起来。应检查励磁回路有无断线和接触良好。

(1) The excitation circuit is open circuit, so that the voltage cannot rise. Check whether the excitation circuit is disconnected and in good contact.

（2）剩磁消失。如果励磁电压表上没有指示，剩磁消失。励磁器应该磁化。

(2) The remanence disappears. If there is no indication on the excitation voltmeter, the remanence disappears. The exciter should be magnetized.

（3）励磁机磁场线圈接极性相反，其正负连接线应互换。

(3) The field coil of exciter has opposite polarity, and its positive and negative connecting wires shall be interchanged.

（4）发电机检修时，误接通磁场线圈使直流电反向，导致残余磁消失或反向，应重新磁化。

(4) When the generator is overhauled, the magnetic field coil is wrongly connected to reverse the DC current, resulting in the disappearance or reverse of the residual magnetism, which should be re magnetized.

3、发电机电流过大

3. Excessive generator current

（1）负荷过大，应减少负荷。

(1) If the load is too large, reduce the load.

（2）输电线路发生相间短路或接地故障时，应进行修复，排除故障后恢复正常。

(2) In case of phase to phase short circuit or grounding fault of the transmission line, it shall be repaired, and the fault shall be eliminated before it returns to normal.

4、发电机端电压过高

4. Generator terminal voltage is too high

（1）发电机并网供电电网电压过高，应降低发电机并网供电电压。

(1) If the grid voltage of generator grid connected power supply is too high, the grid connected power supply voltage of generator shall be reduced.

（2）如果励磁装置故障导致过励磁，应及时检修励磁装置。

(2) If overexcitation is caused by the fault of excitation device, the excitation device shall be repaired in time.

上述就是小编对于燃气发电机组的常见故障分析，相关内容的介绍。相信你在看到以后就会明白的。今天小编就给大家介绍这么多，如果大家还有什么不明白，就来网站http://www.huannengpower.com联系我们吧！

The above is a brief introduction to the common fault analysis and related contents of the gas generator set. I believe you will understand after seeing it. Today, the editor will introduce so much to you. If you still have something you don't understand, please come to the website http://www.huannengpower.com Contact us!