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湖北省富水电厂1号机TS550/80-28型17,000kW机组直流励磁系统,发生主励磁机励磁磁极剩磁反向故障,这种磁极剩磁反向是由电力系统对机组的突然冲击和运行操作不当引起的。磁极剩磁反向和消失问题,过去曾在不同型号的中小型直流励磁机组和直流电焊机上发生过,其后果是机组不能正常建压,表计指示反向和烧坏励磁回路元件。防止和消除这
Hubei Province Hydropower Plant No. 1 machine TS550 / 80-28 17,000 kW unit DC excitation system, the main exciter excitation magnetic pole residual magnetic reverse fault, this magnetic residual magnetization reverse by the power system on the sudden impact of the unit and Operation caused by improper operation. The problem of reversal and disappearance of the remanence of the magnetic pole has in the past occurred in different types of medium and small DC excitation units and DC welders. The consequence is that the unit can not build up pressure normally, and the meter indicates the reverse and burn-out of the excitation circuit components. Prevent and eliminate this