微机主变保护装置校验说明

2020/2/161•过电流1（TOC1）为主变倒送电及母差过流保护过电流（TOC）保护调试•过电流2（TOC2）为过负荷及启动失灵保护2020/2/162过电流1（TOC1）定值校验•过电流1（TOC1）高值为主变过流又母差动作保护•母差范围内故障，主变开关拒动或者故障点在开关与CT之间•母差及主变过流均动作，跳主变两侧所有开关•校验高值需短接母差动作回路X121:1-X121:172020/2/163过电流1（TOC1）定值校验•过电流1（TOC1）低值为主变倒送电保护•校验低值需过流保护压板LP11投入，短接主变倒送电回路X121:1-X121:23，启动后延时6″出口高压开关•主变倒送电时，主变低压侧线圈及引线相间故障，差动保护灵敏度不够时，由该保护动作，跳主变开关2020/2/164过电流1（TOC1）保护逻辑STHSL3OUTANDINPUT1INPUT3INPUT2INPUT4NNOUTA016FALSEHV_OC_HS_TRIPHV_OC_LS_TRIPHV_OC_TRIPERRORTRIPTRLSTRHSSTLSL2STLSL1STHSL1STHSL2STLSL3G3IBLKLSBLKHSSIDE3WTOCTOC1HV_3Ph_FEEDE_1_IFALSE#1HV_OC_START_L1Trans_TOC_ONTrans_FEEDBACKHV_OC_START_L2HV_OC_START_L3TimerOFFTONTM05ANDOUTINPUT1INPUT3INPUT2INPUT4NNOUTA015FALSEFALSEHVBUS_DIFF_TRIPTRUE#6.00BACK_OC_TRIPBUSDIF_OC_TRIPINPUT2020/2/165TRIPBLOCKFALSEOUTDIFP_TRIP_ALINPUT02INPUT01INPUT08TR03BLOCKSETPULSEINPUT16INPUT11#0.15FALSEHV_CB_TRIPTRIPOUTTRIPTR02BLOCKFALSEOUT1-3G_TRIP#0.15SETPULSEINPUT16FALSEINPUT01INPUT01INPUT16#0.15SETPULSEINPUT05BUSDIF_TOC_TRIPBACK_TOC_TRIP过电流1（TOC1）保护跳闸信号模块2020/2/166过电流2（TOC2）定值校验•过电流2（TOC2）高值为启动失灵保护•主变事故，开关拒动，主变保护总出口和过流均动作，启动母线失灵保护•校验高值需差动保护压板LP10投入2020/2/167过电流2（TOC2）定值校验•过电流2（TOC2）低值为过负荷保护•低值启动后延时9″发信号2020/2/168过电流2（TOC2）保护跳闸信号模块STHSL3OUTORINPUT1INPUT3INPUT2INPUT4NOUTO002FALSEHV_OC_HS_TRIPHV_OC_LS_TRIPHV_OC_TRIPERRORTRIPTRLSTRHSSTLSL2STLSL1STHSL1STHSL2STLSL3G3IBLKLSBLKHSSIDE3WTOC2HV_3Ph_FEEDE_1_IFALSE#1HV_OC_START_L1DIFF_TRIPHV_OC_START_L2HV_OC_START_L3NOUTINPUT3INPUT4NINPUT2INPUT1ANDOUTA006TM02TINPUTTimerONOFF#0.00HV_CB_BFP-STARTINPUT6INPUT5INPUT6INPUT5INPUT4INPUT1INPUT2INPUT3O003OROUTNOUTFALSEFALSETRUEFALSEFALSETOC2020/2/169•当主变中性点接地时TEF1,TEF2作为主变高压侧及母线，线路单相接地的后备保护•当主变中性点不接地时，TEF3作为主变高压侧及母线，线路单相接地的后备保护零序电流（TEF）保护调试•中性点零序电流（TEF1，TEF2）保护•间隙零序电流（TEF3）保护2020/2/1610零序电流（TEF）保护校验•由调试仪加入单相电流至中性点零序电流回路或者间隙零序电流回路•增加电流至动作，记下动作电流2020/2/1611中性点零序电流（TEF1，TEF2）定值校验•零序电流保护1（TEF1），零序电流保护2(TEF2)的低值T1,T3动作后4.5“跳开220KV母联开关，高值T2,T4动作后5.0”跳开主变开关，机组开关•分别投入零序电流Ⅰ保护投入压板LP12，零序电流Ⅱ保护投入压板LP13•确定或者短接主变中性点闸刀位置回路X121:1-X121:13•确定或者短接主变开关位置回路X121:1-X121:382020/2/1612INPUT1INPUT16SETPULSE#0.15DIFP_TRIP_AL1-3G_TRIPHV_CB_TRIPOUTOUT#0.15FALSE#0.15TR02BLOCKINPUT16SETPULSEINPUT1TRIPINPUT16SETPULSEFALSEBLOCKINPUT1TRIPTR03TRIPFALSEBLOCKOUTTR01INPUT2INPUT4INPUT3INPUT2零序电流1（TEF1），零序电流2（TEF2）保护跳闸逻辑FALSENOUTINPUT2INPUT3INPUT1ANDOUTTrans_TEF1_ONINPUT4NTRUEHV_EF_HS_TRIPTRLSSIDE3WHV_Neu1L1_ISITRHSSTHSSTLSHV_EF_STARTTrans_TEF1_ONFALSEFALSE#1INPUT2INPUT3INPUT1INPUT4NHV_EF_LS_TRIPTEF1TEFBLKLSBLKHSERRORTRIPTRUEHV_EF_TRIPFALSENOUTANDOUTI2BLKA010HV_EF_2nd_H_BLOKFALSEHV_TEF1_T1_TRIPHV_TEF1_T2_TRIPFALSEINPUT3O016INPUT10RINPUT4INPUT5INPUT6INPUT2INPUT3INPUT6INPUT5INPUT4HV_EF_TRLSOUTNOUTO013INPUT1INPUT20RHV_EF_TRHSNOUTOUTINPUT1INPUT16SETPULSE#0.15OUTFALSEINPUT6INPUT1ORTR05TRIPFALSEBLOCKOUTO005INPUT2INPUT4INPUT3INPUT5NOUTFALSEFALSEFALSEINPUT3INPUT4NINPUT1INPUT2A007ANDNOUTOUTTRUEHV_CB_CLOSEDFALSEFALSEHV_BUSTIE_TRIP2020/2/1613零序电流1(TEF1)，零序电流2(TEF2)保护逻辑FALSENOUTINPUT2INPUT3INPUT1ANDOUTTrans_TEF1_ONINPUT4NTRUEHV_EF_HS_TRIPTRLSSIDE3WHV_Neu1L1_ISITRHSSTHSSTLSHV_EF_STARTTrans_TEF1_ONFALSEFALSE#1INPUT2INPUT3INPUT1INPUT4NHV_EF_LS_TRIPTEF1TEFBLKLSBLKHSERRORTRIPTRUEHV_EF_TRIPFALSENOUTANDOUTI2BLKA010HV_EF_2nd_H_BLOKFALSEHV_TEF1_T1_TRIPHV_TEF1_T2_TRIPFALSEINPUT3O016INPUT10RINPUT4INPUT5INPUT6INPUT2INPUT3INPUT6INPUT5INPUT4HV_EF_TRLSOUTNOUTO013INPUT1INPUT20RHV_EF_TRHSNOUTOUT2020/2/1614零序电流1(TEF1)，零序电流2(TEF2)跳闸信号逻辑INPUT1INPUT16SETPULSE#0.15DIFP_TRIP_AL1-3G_TRIPHV_CB_TRIPOUTOUT#0.15FALSE#0.15TR02BLOCKINPUT16SETPULSEINPUT1TRIPINPUT16SETPULSEFALSEBLOCKINPUT1TRIPTR03TRIPFALSEBLOCKOUTTR01INPUT2INPUT4INPUT3INPUT22020/2/1615INPUT1INPUT16SETPULSE#0.15OUTFALSEINPUT6INPUT1ORTR05TRIPFALSEBLOCKOUTO005INPUT2INPUT4INPUT3INPUT5NOUTFALSEFALSEFALSEINPUT3INPUT4NINPUT1INPUT2A007ANDNOUTOUTTRUEHV_CB_CLOSEDFALSEFALSEHV_BUSTIE_TRIP零序电流1(TEF1)，零序电流2(TEF2)跳闸信号逻辑2020/2/1616间隙零序电流（TEF3）定值校验•零序电流保护3（TEF3），动作后0.5”跳开主变开关，机组开关•投入间隙零序电压电流保护投入压板LP14•确定或者隔离主变中性点闸刀位置回路X121:1-X121:132020/2/1617INPUT1INPUT16SETPULSE#0.15DIFP_TRIP_AL1-3G_TRIPHV_CB_TRIPOUTOUT#0.15FALSE#0.15TR02BLOCKINPUT16SETPULSEINPUT1TRIPINPUT16SETPULSEFALSEBLOCKINPUT1TRIPTR03TRIPFALSEBLOCKOUTTR01INPUT7INPUT4FALSEFALSE零序电流3（TEF3）保护跳闸逻辑ERRORTEFTEF3SISIDE3WTRIP#4INPUT3INPUT4INPUT1INPUT2O008ORNOUTOUTHV_Neu1L2_IFALSEFALSEFALSETRLSSTLSTRHSSTHSI2BLKFALSEFALSETrans_GAP_U0I0_ON#0.5OFFONTINPUT1TM01TimerINPUT3TRUEINPUT4NA003INPUT2INPUT1ANDOUTNOUTTrans_EDIS_OPENHV_Gap_U0I0_TRIPBLKLSBLKHSINPUT5INPUT62020/2/1618零序电流3（TEF3）保护逻辑ERRORTEFTEF3SISIDE3WTRIP#4INPUT3INPUT4INPUT1INPUT2O008ORNOUTOUTHV_Neu1L2_IFALSEFALSEFALSETRLSSTLSTRHSSTHSI2BLKFALSEFALSETrans_GAP_U0I0_ON#0.5OFFONTINPUT1TM01TimerINPUT3TRUEINPUT4NA003INPUT2INPUT1ANDOUTNOUTTrans_EDIS_OPENHV_Gap_U0I0_TRIPBLKLSBLKHSINPUT5INPUT62020/2/1619零序电流3（TEF3）跳闸信号逻辑INPUT1INPUT16SETPULSE#0.15DIFP_TRIP_ALHV_CB_TRIPOUT#0.15INPUT16SETPULSEFALSEBLOCKINPUT1TRIPTR03TRIPFALSEBLOCKOUTTR01#0.15INPUT7SETPULSEINPUT16TRIPTR02BLOCKFALSEOUT1-3G_TRIPINPUT1INPUT4FALSEFALSEHV_Gap_U0I0_TRIP2020/2/1620•当主变中性点不接地时TOV1,TOV2作为主变高压侧及母线，线路单相接地的后备保护•当主变高压侧充电时，TOV3作13.8KV母线单相接地的信号监视过电压（TOV）保护调试•高压侧正副母单相接地过电压(TOV1，TOV2)保护