瓦斯发电机组电压过高和电压过低，会出现两种情况，一种是电压过高的情况，一种是电压过低的情况，这两种情况都会引起电压的不稳定而导致发电机组不能使用，小编为您介绍这两种情况及解决方法：

There are two situations when the voltage of the gas generator set is too high and too low. One is the situation of too high voltage and the other is the situation of too low voltage. Both of these situations will cause voltage instability and cause the generator set to be unavailable. The editor will introduce these two situations and Solutions:

电压过高的原因及处理方法：

Causes and treatment methods of high voltage:

1.原因：转速过高。处理：减小水轮机导水翼开度，降低转速。

1. Cause: the rotation speed is too high. Treatment: reduce the opening of turbine guide vane and reduce the speed.

2.原因：分流电抗器铁芯气隙过大。处理：改变电抗器铁芯垫片厚度，调整气隙。

2. Cause: the air gap of shunt reactor core is too large. Treatment: change the thickness of the reactor core gasket and adjust the air gap.

3.原因：磁场变阻器短路；调压失灵。处理：找出短路点，予以消除。

3. Cause: short circuit of magnetic field rheostat; Voltage regulation failure. Treatment: find out the short circuit point and eliminate it.

4.原因：发电机事故飞车。处理：紧急停机进行事故处理。

4. Cause: the generator has an accident. Treatment: emergency shutdown for accident treatment.

电压过低的原因及处理办法：

Causes and treatment methods of low voltage:

1、原动机转速太低。处理：调整原动机转速至额定值。

1. The speed of prime mover is too low. Treatment: adjust the speed of prime mover to the rated value.

2、励磁回路电阻过大。处理：减小磁场变阻器的电阻以加大励磁电流。对于半导体励磁发电机应检查附加绕组接头是否断线或接错等。

2. The excitation circuit resistance is too large. Treatment: reduce the resistance of the magnetic field rheostat to increase the excitation current. For semiconductor excitation generator, check whether the additional winding connector is disconnected or connected incorrectly.

3、励磁机电刷不在中性线位置，处理：或弹簧压力过小。将电刷调至正确位置，更换电刷，调整弹簧压力。

3. The exciter brush is not at the neutral line position, treatment: or the spring pressure is too small. Adjust the brush to the correct position, replace the brush and adjust the spring pressure.

4、有部分整流二极管被击穿。处理：检查、更换被击穿的二极管。

4. Some rectifying diodes are broken down. Treatment: check and replace the broken down diode.

5、定子绕组或励磁绕组中有短路或接地故障。处理：检查故障，予以清除。

5. There is a short circuit or ground fault in the stator winding or the excitation winding. Treatment: check the fault and clear it.

6、电刷接触面太小，压力不足，接触不良。处理：如果由于换向器表面不光引起，可在低速下，用砂布磨光换向器表面，或调整弹簧压力。

6. The contact surface of the brush is too small, the pressure is insufficient, and the contact is poor. Treatment: if the surface of the commutator is not smooth, polish the surface of the commutator with emery cloth or adjust the spring pressure at low speed.

瓦斯发电机组电压过高和电压过低的原因以及处理方法就分析到这里了，您如果对此有问题要解答的话，可以来我们网站//www.gz-yanye.com咨询了解！

This is the analysis of the causes and treatment methods of the high and low voltage of the gas generator set. If you have any questions to answer, you can come to our website //www.gz-yanye.com Consult and understand!