高压馈电开关中失压延时保护应用分析  

Application Analysis of Voltage Loss Delay Protection in High Voltage Feed Switch

作　　者：王燕芝 WANG Yanzhi(Tongfa Dongzhouyao Coal Industry Co.,Ltd.,Datong Coal Mine Group,Zuoyun 037101,Shanxi,China)

机构地区：[1]同煤集团同发东周窑煤业有限公司,山西左云037101

出　　处：《能源与节能》2020年第3期184-185,190,共3页Energy and Energy Conservation

摘　　要：分析了传统的失压延时保护电路,提出了针对不同操作机构隔爆高压开关采用不同的改造方案,即永磁操作机构采用增加电容的改造方案,弹簧操作机构采用增加继电器+电容的开关改造方案。实践证明,此种改造方案简单易行,增强了电路的延时保护功能,大大降低了因电网波动引发供电中断而带来的负面影响。This paper analyzed the traditional voltage loss delay protection circuit,and put forward different transformation schemes for different operation mechanisms of explosion-proof high-voltage switch,that was,the transformation scheme of adding capacitance for permanent magnetic actuator,and the transformation scheme of adding relay+capacitance for spring operation mechanism.It has been proved that the scheme is simple and easy to implement,which enhances the delay protection function of the circuit and greatly reduces the negative impact of power supply interruption caused by grid fluctuation.

关 键 词：高压馈电开关 失压延时保护 永磁操作机构 弹簧操作机构 

分 类 号：TD611.5[矿业工程—矿山机电]