瓦斯發(fā)電機組電壓過高和電壓過低，會出現兩種情況，一種是電壓過高的情況，一種是電壓過低的情況，這兩種情況都會引起電壓的不穩(wěn)定而導致發(fā)電機組不能使用，小編為您介紹這兩種情況及解決方法：

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:

電壓過高的原因及處理方法：

Causes and treatment methods of high voltage:

1.原因：轉速過高。處理：減小水輪機導水翼開度，降低轉速。

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

2.原因：分流電抗器鐵芯氣隙過大。處理：改變電抗器鐵芯墊片厚度，調整氣隙。

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：磁場變阻器短路；調壓失靈。處理：找出短路點，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：發(fā)電機事故飛車。處理：緊急停機進行事故處理。

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

電壓過低的原因及處理辦法：

Causes and treatment methods of low voltage:

1、原動機轉速太低。處理：調整原動機轉速至額定值。

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

2、勵磁回路電阻過大。處理：減小磁場變阻器的電阻以加大勵磁電流。對于半導體勵磁發(fā)電機應檢查附加繞組接頭是否斷線或接錯等。

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、勵磁機電刷不在中性線位置，處理：或彈簧壓力過小。將電刷調至正確位置，更換電刷，調整彈簧壓力。

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、有部分整流二極管被擊穿。處理：檢查、更換被擊穿的二極管。

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

5、定子繞組或勵磁繞組中有短路或接地故障。處理：檢查故障，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、電刷接觸面太小，壓力不足，接觸不良。處理：如果由于換向器表面不光引起，可在低速下，用砂布磨光換向器表面，或調整彈簧壓力。

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.

瓦斯發(fā)電機組電壓過高和電壓過低的原因以及處理方法就分析到這里了，您如果對此有問題要解答的話，可以來我們網站http://www.kan138.cn咨詢了解！

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 http://www.kan138.cn Consult and understand!