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2020.10.27
天然气发电机组发生下面故障怎么处理？
一、发动机转速不稳
1、 Unstable engine speed
1.执行器与节气门间传动杆系卡滞或间隙大：检查并重新安装调整。
1. Transmission linkage between actuator and throttle is stuck or clearance is large: check and re install and adjust.
2.发动机超载：降低发动机负载。
2. Engine overload: reduce engine load.
3.转速传感器安装间隙过大：检查并重新安装调整。
3. The installation clearance of speed sensor is too large: check and re install and adjust.
4.控制器参数调整不当：重新调整增益、微分及状态开关。
4. Improper adjustment of controller parameters: readjust gain, differential and state switch.
5.屏蔽线连接不当，出现电磁干扰产生不稳定：检查屏蔽线是否连接正确可靠。
5. Improper connection of shielding wire leads to electromagnetic interference instability: check whether the shielding wire is connected correctly and reliably.
二、发动机不能启动
2、 The engine will not start
1、节气门卡死：重新安装与调试。
1. Throttle stuck: re install and commission.
2、启动油量设定值过低：适当增大启动油量。
2. The set value of starting oil is too low: increase the starting oil properly.
3、转速设定太低：顺时针旋转低速电位器，以提高到怠速状态。
3. Speed setting too low: rotate the low speed potentiometer clockwise to increase to idle speed.
4、无转速反馈信号：检查转速传感器及电缆。
4. No speed feedback signal: check speed sensor and cable.
5、调速器电源不通或接反：检查电源及接线。
5. Governor power failure or reverse connection: check the power supply and wiring.
三、发动机启动超速
3、 Engine over speed
1、控制器参数调整不当：适当增大控制器的“增益”和“微分”。
1. Improper adjustment of controller parameters: properly increase the "gain" and "differential" of the controller.
2、调速器电流限制过高：适当降低启动油量。
2. The current limit of governor is too high: reduce the starting oil properly.
3、执行器与节气门机构减小燃气的方向不一致或者零点位置不匹配：检查并重新安装调整。
3. Actuator and throttle mechanism reduce gas direction is inconsistent or zero position does not match: check and re install adjustment.
4、调速系统转速设定过高：调整低速设定值，达到标定设定值。
4. Speed control system speed setting too high: adjust the low speed setting value to reach the calibration setting value.
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