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常見問題解答

燃氣發(fā)電機組為什么會失磁，如何處理

返回 2020.05.15 來源：http://www.a7716.cn 0
　　燃氣發(fā)電機組失磁是指發(fā)電機剩余磁性的消失。剩磁是指鐵磁材料在磁化過程中，外部磁場消失后，鐵磁材料所保留的磁場。發(fā)電機的剩磁是指固定轉(zhuǎn)子鐵心停堆后的剩磁。
　　Loss of excitation of gas generator unit refers to the disappearance of residual magnetism of generator. Remanence refers to the magnetic field retained by ferromagnetic materials when the external magnetic field disappears in the process of magnetization. The remanence of generator refers to the remanence of fixed rotor core after shutdown.
　　為什么在燃氣發(fā)電機組中必須有剩磁?
　　Why is it necessary to have remanence in gas generator set?
燃氣發(fā)電機組
　　對于自激發(fā)電機，將剩余磁場產(chǎn)生的電供給轉(zhuǎn)子繞組，加強轉(zhuǎn)子磁場，通過正反饋逐漸提高發(fā)電機的輸出電壓，直到更終達到額定電壓。如果沒有剩磁，發(fā)電機就不能發(fā)電。
　　For the self excitation motor, the electricity generated by the residual magnetic field is supplied to the rotor winding, the rotor magnetic field is strengthened, and the output voltage of the generator is gradually increased through positive feedback until the rated voltage is finally reached. If there is no remanence, the generator cannot generate electricity.
　　燃氣發(fā)電機組失磁的原因是什么?
　　What is the reason for the loss of excitation of gas generator set?
　　1)不需要長時間發(fā)電，導(dǎo)致鐵芯在出廠前的剩磁損失。勵磁繞組不能建立適當?shù)拇艌?。此時，發(fā)電機運轉(zhuǎn)正常，但不發(fā)電。
　　1) It does not need long time to generate electricity, which leads to the remanence loss of iron core before leaving the factory. The excitation winding cannot establish a proper magnetic field. At this time, the generator operates normally, but does not generate electricity.
　　2)當發(fā)電機停止時，先停止原動機(柴油機、汽油機等)，再切斷負載(電器)。這樣，鐵芯中的剩磁就會被消耗掉，導(dǎo)致發(fā)電機失磁。
　　2) When the generator stops, first stop the prime mover (diesel engine, gasoline engine, etc.) and then cut off the load (electrical appliances). In this way, the residual magnetism in the core will be consumed, resulting in the loss of excitation of the generator.
　　如何處理發(fā)電機的損失?
　　How to deal with the loss of generator?
　　1)斷開自動調(diào)壓器(AVR)與勵磁機定子繞組的連接;2)將24V電壓的直流電源(如電池)連接到勵磁機定子繞組上(注意兩者的正極和負極應(yīng)相互對應(yīng));3)啟動發(fā)電機組，以額定轉(zhuǎn)速運行一段時間。
　　1) Disconnect the connection between the AVR and the stator winding of the exciter; 2) connect the 24V DC power supply (such as battery) to the stator winding of the exciter (note that the positive and negative poles of the two should correspond to each other); 3) start the generator set to operate at the rated speed for a period of time.
　　以上是燃氣發(fā)電機組廠家為大家介紹的相關(guān)內(nèi)容，想要了解更多內(nèi)容，歡迎訪問網(wǎng)站：http://www.a7716.cnThe above is the relevant content introduced by the gas generator manufacturer for you. To learn more, please visit the website: http://www.a7716.cn

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燃氣發(fā)電機組為什么會失磁，如何處理

　　燃氣發(fā)電機組失磁是指發(fā)電機剩余磁性的消失。剩磁是指鐵磁材料在磁化過程中，外部磁場消失后，鐵磁材料所保留的磁場。發(fā)電機的剩磁是指固定轉(zhuǎn)子鐵心停堆后的剩磁。
　　Loss of excitation of gas generator unit refers to the disappearance of residual magnetism of generator. Remanence refers to the magnetic field retained by ferromagnetic materials when the external magnetic field disappears in the process of magnetization. The remanence of generator refers to the remanence of fixed rotor core after shutdown.
　　為什么在燃氣發(fā)電機組中必須有剩磁?
　　Why is it necessary to have remanence in gas generator set?
燃氣發(fā)電機組
　　對于自激發(fā)電機，將剩余磁場產(chǎn)生的電供給轉(zhuǎn)子繞組，加強轉(zhuǎn)子磁場，通過正反饋逐漸提高發(fā)電機的輸出電壓，直到更終達到額定電壓。如果沒有剩磁，發(fā)電機就不能發(fā)電。
　　For the self excitation motor, the electricity generated by the residual magnetic field is supplied to the rotor winding, the rotor magnetic field is strengthened, and the output voltage of the generator is gradually increased through positive feedback until the rated voltage is finally reached. If there is no remanence, the generator cannot generate electricity.
　　燃氣發(fā)電機組失磁的原因是什么?
　　What is the reason for the loss of excitation of gas generator set?
　　1)不需要長時間發(fā)電，導(dǎo)致鐵芯在出廠前的剩磁損失。勵磁繞組不能建立適當?shù)拇艌觥４藭r，發(fā)電機運轉(zhuǎn)正常，但不發(fā)電。
　　1) It does not need long time to generate electricity, which leads to the remanence loss of iron core before leaving the factory. The excitation winding cannot establish a proper magnetic field. At this time, the generator operates normally, but does not generate electricity.
　　2)當發(fā)電機停止時，先停止原動機(柴油機、汽油機等)，再切斷負載(電器)。這樣，鐵芯中的剩磁就會被消耗掉，導(dǎo)致發(fā)電機失磁。
　　2) When the generator stops, first stop the prime mover (diesel engine, gasoline engine, etc.) and then cut off the load (electrical appliances). In this way, the residual magnetism in the core will be consumed, resulting in the loss of excitation of the generator.
　　如何處理發(fā)電機的損失?
　　How to deal with the loss of generator?
　　1)斷開自動調(diào)壓器(AVR)與勵磁機定子繞組的連接;2)將24V電壓的直流電源(如電池)連接到勵磁機定子繞組上(注意兩者的正極和負極應(yīng)相互對應(yīng));3)啟動發(fā)電機組，以額定轉(zhuǎn)速運行一段時間。
　　1) Disconnect the connection between the AVR and the stator winding of the exciter; 2) connect the 24V DC power supply (such as battery) to the stator winding of the exciter (note that the positive and negative poles of the two should correspond to each other); 3) start the generator set to operate at the rated speed for a period of time.
　　以上是燃氣發(fā)電機組廠家為大家介紹的相關(guān)內(nèi)容，想要了解更多內(nèi)容，歡迎訪問網(wǎng)站：http://www.a7716.cnThe above is the relevant content introduced by the gas generator manufacturer for you. To learn more, please visit the website: http://www.a7716.cn