合金尾氣發(fā)電機(jī)保護(hù)包括縱差動(dòng)保護(hù)、橫差動(dòng)保護(hù)、零序保護(hù)、過流保護(hù)、過負(fù)荷保護(hù)、過電壓保護(hù)、失磁保護(hù)、失步保護(hù)、低頻保護(hù)、逆功率保護(hù)、接地保護(hù)等。

　　Generator protection includes longitudinal differential protection, transverse differential protection, zero sequence protection, overcurrent protection, overload protection, overvoltage protection, demagnetization protection, step loss protection, low-frequency protection, reverse power protection, grounding protection, etc.

　　1. 縱差動(dòng)保護(hù)：縱差動(dòng)保護(hù)是發(fā)電機(jī)內(nèi)部故障的主保護(hù)，用于快速切除發(fā)電機(jī)定子線卷兩側(cè)的故障。

　　1. Longitudinal differential protection: Longitudinal differential protection is the main protection for internal faults in the generator, used to quickly cut off faults on both sides of the generator stator winding.

　　2. 橫差動(dòng)保護(hù)：橫差動(dòng)保護(hù)用于定子單相接地保護(hù)，可以在定子線卷發(fā)生單相接地故障時(shí)及時(shí)動(dòng)作。

　　2. Horizontal differential protection: Horizontal differential protection is used for stator single-phase grounding protection, which can act in a timely manner when a single-phase grounding fault occurs in the stator winding.

　　3. 零序保護(hù)：零序保護(hù)是基于發(fā)電機(jī)定子繞組單相接地時(shí)產(chǎn)生零序電流原理構(gòu)成的，當(dāng)定子繞組發(fā)生單相接地故障時(shí)，零序保護(hù)裝置可以快速切除故障。

　　3. Zero sequence protection: Zero sequence protection is based on the principle of generating zero sequence current when the stator winding of the generator is single-phase grounded. When a single-phase grounding fault occurs in the stator winding, the zero sequence protection device can quickly cut off the fault.

　　4. 過流保護(hù)：過流保護(hù)是當(dāng)定子線卷的電流超過額定電流時(shí)，保護(hù)裝置可以及時(shí)動(dòng)作，防止發(fā)電機(jī)因過電流而受到損壞。

　　4. Overcurrent protection: Overcurrent protection is when the current of the stator winding exceeds the rated current, the protection device can act in a timely manner to prevent the generator from being damaged due to overcurrent.

　　5. 過負(fù)荷保護(hù)：過負(fù)荷保護(hù)是當(dāng)發(fā)電機(jī)承受超過額定負(fù)荷時(shí)，保護(hù)裝置可以及時(shí)動(dòng)作，防止發(fā)電機(jī)因過負(fù)荷而受到損壞。

　　5. Overload protection: Overload protection is a protective device that can act in a timely manner when the generator is subjected to a load exceeding its rated capacity, preventing damage to the generator due to overload.

　　6. 過電壓保護(hù)：過電壓保護(hù)是當(dāng)發(fā)電機(jī)的電壓超過額定電壓時(shí)，保護(hù)裝置可以及時(shí)動(dòng)作，防止發(fā)電機(jī)因過電壓而受到損壞。

　　6. Overvoltage protection: Overvoltage protection is when the voltage of the generator exceeds the rated voltage, the protective device can act in a timely manner to prevent the generator from being damaged due to overvoltage.

　　7. 失磁保護(hù)：失磁保護(hù)是當(dāng)發(fā)電機(jī)的磁場失去時(shí)，保護(hù)裝置可以及時(shí)動(dòng)作，防止發(fā)電機(jī)因失磁而受到損壞。

　　7. demagnetization protection: demagnetization protection is a protective device that can act in a timely manner when the magnetic field of the generator is lost, preventing the generator from being damaged due to demagnetization.

　　8. 失步保護(hù)：失步保護(hù)是當(dāng)發(fā)電機(jī)與系統(tǒng)失去同步時(shí)，保護(hù)裝置可以及時(shí)動(dòng)作，防止發(fā)電機(jī)因失步而受到損壞。

　　8. Out of step protection: Out of step protection is a protective device that can act in a timely manner when the generator loses synchronization with the system, preventing damage to the generator due to out of step.

　　9. 低頻保護(hù)：低頻保護(hù)是當(dāng)系統(tǒng)頻率低于額定頻率時(shí)，保護(hù)裝置可以及時(shí)動(dòng)作，防止發(fā)電機(jī)因低頻而受到損壞。

　　9. Low frequency protection: Low frequency protection is a protective device that can act in a timely manner when the system frequency is lower than the rated frequency, preventing the generator from being damaged due to low frequency.

　　10. 逆功率保護(hù)：逆功率保護(hù)是當(dāng)發(fā)電機(jī)進(jìn)入逆功率狀態(tài)時(shí)，保護(hù)裝置可以及時(shí)動(dòng)作，防止發(fā)電機(jī)因逆功率而受到損壞。

　　10. Reverse power protection: Reverse power protection is a protective device that can act in a timely manner when the generator enters a reverse power state to prevent damage to the generator due to reverse power.

　　11. 接地保護(hù)：接地保護(hù)是當(dāng)發(fā)電機(jī)定子接地時(shí)候，保護(hù)裝置發(fā)出跳閘或者告警信號(hào)（V:weijicekong）。

　　11. Grounding protection: Grounding protection is when the generator stator is grounded, the protection device sends a trip or alarm signal (V: weijicekong).