摘要
针对旺隆电厂380 V厂用电系统中MFC2031型微机型备用电源自动投入(以下简称备自投)装置切换慢,无法满足负荷对母线电压要求及380 V厂用电倒闸操作十分繁琐的问题,对380 V厂用2 W(母线)备自投装置进行改造,成功地以MFC5103型工业企业电源快速切换装置替代MFC2031型微机型备自投装置,大大缩短了备用电源切换过程,维持母线电压在一个较高水平,满足了各类重要负荷对母线电压的要求,提高了机组运行的可靠性。
Aiming at slow switching of automatic stand-by power switching device（hereinafter referred to as APD）,incapability to meet requirement on bus voltage of MFC2031 micromachine in 380V auxiliary power system of Wanglong power plant and complication in switch operation,2W（bus） stand-by power switching device for 380 V auxiliary power system is reconstructed and stand-by power switching device of MFC2031 is successfully replaced by MFC5103 industrial power fast transfer device,by means of which auxiliary power switching time is shortened,the bus voltage is kept at a higher level,various requirements of key loads on bus voltage are met and reliability of unit operation is improved.
出处
《广东电力》
2011年第7期70-72,76,共4页
Guangdong Electric Power
关键词
厂用电系统
备用电源
自动投入装置
快速切换
auxiliary power system
stand-by power
automatic switching device
fast transfer
