合金尾气发电机保护包括纵差动保护、横差动保护、零序保护、过流保护、过负荷保护、过电压保护、失磁保护、失步保护、低频保护、逆功率保护、接地保护等。

　　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. 纵差动保护：纵差动保护是发电机内部故障的主保护，用于快速切除发电机定子线卷两侧的故障。

　　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. 横差动保护：横差动保护用于定子单相接地保护，可以在定子线卷发生单相接地故障时及时动作。

　　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. 零序保护：零序保护是基于发电机定子绕组单相接地时产生零序电流原理构成的，当定子绕组发生单相接地故障时，零序保护装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. 过流保护：过流保护是当定子线卷的电流超过额定电流时，保护装置可以及时动作，防止发电机因过电流而受到损坏。

　　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. 过负荷保护：过负荷保护是当发电机承受超过额定负荷时，保护装置可以及时动作，防止发电机因过负荷而受到损坏。

　　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. 过电压保护：过电压保护是当发电机的电压超过额定电压时，保护装置可以及时动作，防止发电机因过电压而受到损坏。

　　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. 失磁保护：失磁保护是当发电机的磁场失去时，保护装置可以及时动作，防止发电机因失磁而受到损坏。

　　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. 失步保护：失步保护是当发电机与系统失去同步时，保护装置可以及时动作，防止发电机因失步而受到损坏。

　　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. 低频保护：低频保护是当系统频率低于额定频率时，保护装置可以及时动作，防止发电机因低频而受到损坏。

　　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. 逆功率保护：逆功率保护是当发电机进入逆功率状态时，保护装置可以及时动作，防止发电机因逆功率而受到损坏。

　　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. 接地保护：接地保护是当发电机定子接地时候，保护装置发出跳闸或者告警信号（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).