断路器本体三相不一致保护回路改进郭敏,王文丽(广西电网公司南宁供电局,广西南宁530031)摘要:对三相不一致保护回路进行优化是防止断路器本体三相不一致保护误动的主要途径之一。结合实际整改工作,分析了各类型本体三相不一致回路改进方案,主要针对本体三相不一致保护与就地分闸共用出口继电器的回路进行了分析,其中增加三相不一致出口继电器的方案在完善了回路的同时也能可靠防止三相不一致出口继电器误动。关键词:断路器;三相不一致保护改进;共用出口中图分类号:TM588DOI:10.19768/j.cnki.dgjs.2022.24.078ImprovementofThreePhaseInconsistentProtectionCircuitofCircuitBreakerGUOMin,WANGWenli(NanningPowerSupplyBureau,GuangxiPowerGridCompany,Nanning530031,China)Abstract:Optimizingthethree-phaseinconsistencyprotectionloopisoneofthemainwaystopreventthethree-phasein-consistencyprotectionmisoperationofthecircuitbreakerbody.Combinedwiththeactualrectificationwork,theimprove-mentschemeofthethree-phaseinconsistentcircuitofeachtypeofontologywasanalyzed.Thecircuitofthethree-phaseinconsistencyprotectionofthebodyandthelocalopeningsharedoutletrelayisanalyzed,andtheschemeofaddingthethree-phaseinconsistentoutletrelaycanreliablypreventthemisoperationofthethree-phaseinconsistentoutletrelaywhileimprovingthecircuit.Keywords:circuitbreaker;three-pha...