搜索
失灵汇总一.500kV开关失灵以第三串为例，开关的失灵保护是在开关保护RCS－921里实现的，线路保护RCS－931和RCS－902的分相跳闸命令及来自操作箱的三相跳闸命令TJR开入至RCS－921，921经内部逻辑判断――过流判据（失灵高定值0.6A，失灵低定值0.4A），满足失灵条件时经第一时限0.13s跳本开关，0.2s跳相邻开关即SLJ触点闭合。1LP91D301D29TJA-33D533D64211LP101D31TJB-33D67211LP111D32TJC-33D70211LP91D301D29TJA-33D65211LP101D31TJB-33D68211LP111D32TJC-33D71214D714D7013TJR3D7523TJR9319021LP9启动5011开关A相失灵及重合闸1LP10启动5011开关B相失灵及重合闸1LP11启动5011开关C相失灵及重合闸1LP9启动5011开关A相失灵及重合闸1LP10启动5011开关B相失灵及重合闸1LP11启动5011开关C相失灵及重合闸压板名称操作箱921失灵开入Fig.1失灵启动开入对5031边开关来说，两个SLJ触点跳相邻中开关；两个SLJ触点启动母差失灵；另有四个SLJ触点开入至FOX-41Ⅰ和Ⅱ启动远跳。213LP83D923D394D99SLJ1-14D411-13TJR4D88R133101213LP93D943D414D105SLJ1-24D721-23TJR4D90R233201213LP103D963D43X10-3SLJ2-1X11-11049F103Z213LP113D973D44X10-3SLJ2-2X11-11149F203Z5031断路器保护5032操作箱压板名称3LP85032开关跳闸Ⅰ3LP17启动光纤接口二命令8发信Ⅱ3LP95032开关跳闸Ⅱ3LP10启动1M母差Ⅰ失灵3LP11启动1M母差Ⅱ失灵213LP143D1003D4724D53SLJ4-124D10H961H911213LP153D1013D4824D54SLJ4-2H963213LP163D1023D44924D53SLJ5-124D12H971H901213LP173D1033D5024D54SLJ5-2H971FOX-41ⅠFOX-41Ⅱ命令7命令8命令7命令81M母差Ⅰ屏1M母差Ⅱ屏3LP14启动光纤接口一命令7发信Ⅰ3LP15启动光纤接口一命令8发信Ⅰ3LP16启动光纤接口二命令7发信ⅡFig.25031边开关失灵出口对5033边开关来说，两个SLJ触点跳相邻中开关；两个SLJ触点启动母差失灵；另有一个SLJ触点开入至主变保护C屏，借助RCS-974的压力释放跳闸继电器J8联跳主变三侧。213LP83D923D394D99SLJ1-14D411-13TJR4D88R133101213LP93D943D414D105SLJ1-24D721-23TJR4D90R233201213LP103D963D43X10-3SLJ2-1X11-11049F103Z213LP113D973D44X10-3SLJ2-2X11-11149F203Z5033断路器保护5032操作箱压板名称3LP85032开关跳闸Ⅰ3LP95032开关跳闸Ⅱ3LP10启动2M母差Ⅰ失灵3LP11启动2M母差Ⅱ失灵2M母差Ⅰ屏2M母差Ⅱ屏3LP123D983D45SLJ2-28FD20018FD98J8A，B，C8ZD1R2333LP12失灵联跳主变三侧21Fig.35033边开关失灵出口对5032中开关来说，两个SLJ触点跳相邻5031边开关；两个SLJ触点跳相邻5033边开关；一个SLJ触点与5033的SLJ触点并联开入至主变保护C屏，实现联跳主变三侧；另有四个SLJ触点开入至FOX-41Ⅰ和Ⅱ启动远跳。213LP83D923D394D99SLJ1-14D111-13TJR4D88R133101213LP93D943D414D105SLJ1-24D721-23TJR4D90R233201213LP103D963D43SLJ2-1213LP113D973D44SLJ2-25032断路器保护5031操作箱压板名称3LP85032开关跳闸Ⅰ3LP17启动光纤接口二命令8发信Ⅱ3LP95032开关跳闸Ⅱ213LP143D1003D4724D53SLJ4-124D10H961H911213LP153D1013D4824D54SLJ4-2H963213LP163D1023D44924D53SLJ5-124D12H971H901213LP173D1033D5024D54SLJ5-2H971FOX-41ⅠFOX-41Ⅱ命令7命令8命令7命令83LP14启动光纤接口一命令7发信Ⅰ3LP15启动光纤接口一命令8发信Ⅰ3LP16启动光纤接口二命令7发信Ⅱ4D11014D72014D9911-13TJR4D88R1334D10521-23TJR4D90R2335033操作箱3LP105033开关跳闸Ⅰ3LP115033开关跳闸Ⅱ213LP123D983D45SLJ2-28FD20018FD98J8A，B，C8ZD1R2333LP12失灵联跳主变三侧Fig.45032中开关失灵出口二.220kV开关失灵1.线路开关失灵线路开关的失灵保护是由线路保护、开关保护、失灵保护共同实现的，线路保护RCS－931和RCS－902的分相跳闸命令及来自操作箱的三相跳闸命令TJR和TJQ与开关辅助保护RCS-923过流判据（失灵电流定值0.9A）串联，开入至失灵保护屏BP-2B，经失灵出口短延时0.35s跳母联/分段开关，失灵长延时0.5s跳该母线上所连接的所有开关。9021LP91D301D29TJA-38D22211LP101D31TJB-3211LP111D32TJC-3211LP91D301D29TJA-3211LP101D31TJB-3211LP111D32TJC-3214D714D7012TJR8D2312TJQ压板名称8D21SLJA-2SJB-2SJC-28D248D25218LP922TJR22TJQSJ2-28D269319231LP9A相失灵启动1LP10B相失灵启动1LP11C相失灵启动1LP9A相失灵启动1LP10B相失灵启动1LP11C相失灵启动8LP9总失灵启动1-2M失灵屏Fig.5220kV线路开关失灵启动回路2.母联/分段开关失灵母联/分段开关的失灵保护是由母差保护BP-2B实现的，来自操作箱的三相跳闸命令TJR开入至母差保护屏BP-2B，由母差保护经过流判据（母联失灵电流定值0.2s）实现失灵保护，满足失灵条件时经0.2s跳两条母线上所有开关。LP-5141LP12141D5511TJR21TJRX10-141D5421LP-5141LP22141D5812TJR22TJRX10-141D5721024a024a’01a01a’1-2母差屏一1-2母差屏二母联/分段操作箱LP51#1母联2012保护失灵启动LP51#1母联2012保护失灵启动41LP12012开关启动1-2M母差I失灵41LP22012开关启动1-2M母差II失灵Fig.6220kV母联/分段开关失灵启动回路21LP11X5-1X4-141D62保护元件41D111-13TJR4D99R13310121LP11X5-1X4-141D65保护元件41D421-23TJR4D101R2332012181LP1081D5681D48GL11012181LP1281D5881D50CD12181LP1181D5781D49GL21012181LP1381D5981D51CD121-2母差屏一1-2母差屏二81LP132012开关充电保护跳闸II81LP102012开关过流保护跳闸I81LP112012开关过流保护跳闸II81LP122012开关充电保护跳闸IFig.7220kV母联/分段开关TJR回路注：母联/分段的923三相不一致，主变后备（跳母联）保护及失灵保护不启动失灵，不接入TJR中，而是接入BJ非电量跳闸继电器实现三跳。3.变中开关失灵变中开关失灵是由主变保护C屏启动，借助失灵屏跳主变三侧。RCS-974经内部逻辑判断失灵后，使SLQD1触点闭合，开入至失灵屏启动变中失灵；同时保护A屏和B屏的跳中压侧开关的命令开入至失灵屏解除复压闭锁；二者条件同时满足，使得保护元件和闭锁元件触点同时动作，接通RCS-974的J9中间继电器，从而实现联跳主变三侧。1-2M失灵屏218LP378CD488CD47SLQD18CD4401S’21LP53X10-2X11-521LP29X5-17X4-17保护元件闭锁元件8FD39J9A8ZD148FD40J9B8FD41J9C主变保护C屏974218LP368CD451CD39SLQD1025’8CD46X9-7024’211Z1LP49-3J1CD1801S’8CD411CD47211LP30TMDL41CD45主变保护A屏978主变保护B屏32621LP758FD3启动中压侧失灵解除中压侧复压闭锁1LP30解除220kV1、2M失灵复压闭锁1Z1LP4解除220kV1、2M失灵复压闭锁LP53#2主变2202开关失灵启动LP75#2主变解除复压闭锁LP29#2主变失灵跳三侧压板名称Fig.8变中开关失灵启动回路8FD12TJ8ZD14J9AJ9BJ9C218LP8变中失灵跳三侧8ZD5非电量跳闸出口中间继电器Fig.9变中开关失灵联跳三侧