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在发电机励磁系统中多个功率柜并联运行时,若功率柜出力不一致,会影响功率柜单元的寿命与机组强励效果,不利于机组的长期稳定运行。对A电站#3机组的励磁系统功率柜均流系数偏低问题进行了分析及处理,并对该案例进行总结,为处理同类事件提供案例应用参考。
In the generator excitation system, when multiple power cabinets are operated in parallel, if the output power cabinets are inconsistent, the life span of the power cabinets and the strong excitation effect of the power unit will be affected, which is not conducive to the long-term stable operation of the unit. This paper analyzes and deals with the problem of the low current sharing coefficient of power cabinet in the excitation system of unit # 3 of A power station, and summarizes the case to provide case reference for handling similar events.