定子繞組短路，在短路電壓的作用下產(chǎn)生回路電流，使匝間短路發(fā)展為單相接地短路和中間短路。當(dāng)定子繞組多相短路對(duì)機(jī)組有害時(shí)，短路電流會(huì)導(dǎo)致機(jī)組燒毀。
Short circuit of stator winding generates circuit current under the action of short circuit voltage, causing inter turn short circuit to develop into single-phase ground short circuit and intermediate short circuit. When the multiphase short circuit of the stator winding is harmful to the unit, the short-circuit current can cause the unit to burn out.
勵(lì)磁電流會(huì)急劇下降或消失，機(jī)組從系統(tǒng)中吸收大量功率，柴油發(fā)電機(jī)組由同步運(yùn)行變?yōu)楫惒竭\(yùn)行，導(dǎo)致系統(tǒng)電壓下降，嚴(yán)重時(shí)系統(tǒng)崩潰。
The excitation current will drop or disappear sharply, the unit will absorb a large amount of power from the system, and the diesel generator set will change from synchronous operation to asynchronous operation, which will cause the system voltage to drop, and in serious cases, the system will collapse.
勵(lì)磁電路將接地。發(fā)電機(jī)勵(lì)磁回路有兩種接地情況:一點(diǎn)接地和兩點(diǎn)接地。一般來(lái)說(shuō)，當(dāng)勵(lì)磁回路發(fā)生少量接地時(shí)，發(fā)電機(jī)不會(huì)受到嚴(yán)重危害。但如果發(fā)電機(jī)維護(hù)不及時(shí)，可能導(dǎo)致兩點(diǎn)接地，破壞轉(zhuǎn)子磁通平衡，引起發(fā)電機(jī)強(qiáng)烈振動(dòng)，燒毀轉(zhuǎn)子繞組。
The excitation circuit will be grounded. There are two grounding conditions for the generator excitation circuit: one point grounding and two point grounding. Generally speaking, when a small amount of grounding occurs in the excitation circuit, the generator will not be seriously endangered. But if the generator is not maintained in a timely manner, it may lead to two point grounding, damage the rotor magnetic flux balance, cause strong vibration of the generator, and burn out the rotor winding.

該裝置將產(chǎn)生過(guò)電壓。當(dāng)發(fā)電機(jī)在運(yùn)行中突然空載時(shí)，如果柴油發(fā)電機(jī)組不及時(shí)修復(fù)，可能會(huì)因調(diào)速系統(tǒng)慣性大而產(chǎn)生過(guò)電壓，導(dǎo)致發(fā)電機(jī)組絕緣層損壞。
This device will generate overvoltage. When the generator is suddenly unloaded during operation, if the diesel generator set is not repaired in time, it may generate overvoltage due to the large inertia of the speed governing system, resulting in damage to the insulation layer of the generator set.
該單元將過(guò)載。柴油發(fā)電機(jī)組過(guò)載是指發(fā)電機(jī)運(yùn)行超過(guò)額定容量。如果發(fā)電機(jī)維護(hù)不及時(shí)，短時(shí)超負(fù)荷運(yùn)行會(huì)造成發(fā)電機(jī)定子繞組溫度升高，加速絕緣部分老化，縮短發(fā)電機(jī)使用壽命。如果運(yùn)行時(shí)間過(guò)長(zhǎng)，可能會(huì)導(dǎo)致發(fā)電機(jī)定子繞組燒毀，從而導(dǎo)致發(fā)電機(jī)無(wú)法發(fā)電。
The unit will be overloaded. Overload of diesel generator set means that the generator operates beyond the rated capacity. If the generator is not maintained in a timely manner, short-term overload operation will cause the temperature of the generator stator winding to rise, accelerate the aging of the insulation part, and shorten the service life of the generator. If the operating time is too long, it may cause the generator stator winding to burn out, resulting in the generator being unable to generate electricity.
如果柴油發(fā)電機(jī)組維護(hù)不及時(shí)，定子會(huì)過(guò)流。定子過(guò)電流通常由外部短路或系統(tǒng)振蕩引起。如果發(fā)電機(jī)沒(méi)有及時(shí)維護(hù)，當(dāng)發(fā)電機(jī)定子溫度升高時(shí)，會(huì)加速繞組絕緣部分的老化；嚴(yán)重的話會(huì)導(dǎo)致其他故障。
If the diesel generator set is not maintained in time, the stator will overflow. Stator overcurrent is usually caused by external short circuits or system oscillations. If the generator is not maintained in a timely manner, when the temperature of the generator stator increases, it will accelerate the aging of the insulation part of the winding; In severe cases, it can lead to other malfunctions.
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