ABB FI840F 3BDH000033R1
ABBFI840F3BDH000033R1a.线路较短,配变总容量较少时,因为满足灵敏度要求不成问题,Kz或Klc应选较大的系数。b.当线路较长,过流近后备灵敏度不够时(如15km以上线路),可采用复压闭锁过流或低压闭锁过流保护,此时负序电压取0.06Ue,低电压取0.6~0.7Ue,动作电流按正常***大负荷电流整定,只考虑可靠系数及返回系数。当保护无法改动时,应在线路中段加装跌落式熔断器,***终解决办法是网络调整,使10kV线路长度满足规程要求。c.当远后备灵敏度不够时(如配变为5~10kVA,或线路极长),由于每台配变高压侧均有跌落式熔断器,因此可不予考虑。d.当因躲过励磁涌流而使过流定值偏大,而导致保护灵敏度不够时,可考虑将过流定值降低,而将重合闸后加速退出(因10kV线路多为末级保护,过流动作时限一般为0.3s,此段时限也是允许的)。④灵敏度校验:近后备按***小运行方式下线路末端故障,灵敏度大于等于1.5;远后备灵敏度可选择线路***末端的较小配变二次侧故障,接***小方式校验,灵敏度大于或等于1.2。Km1=Idmin1/Idzl≥1.25Km2=Idmin2/Idzl≥1.2式中Idmin1-线路末端***小短路电流Idmin2-线路末端较小配变二次侧***小短路电流Idzl-过流整定值4、重合闸10kV配电线路一般采用后加速的三相一次重合闸,由于安装于末级保护上,所以不需要与其他保护配合。重合闸所考虑的主要为重合闸的重合成功率及缩短重合停电时间,以使用户负荷尽量少受影响。重合闸的成功率主要决定于电弧熄灭时间、外力造成故障时的短路物体滞空时间(如:树木等)。电弧熄灭时间一般小于0.5s,但短路物体滞空时间往往较长。因此,对重合闸重合的连续性,重合闸时间采用0.8~1.5s;农村线路,负荷多为照明及不长期运行的小型电动机等负荷,供电可靠性要求较低,短时停电不会造成很大的损失。为保证重合闸的成功率,一般采用2.0s的重合闸时间。实践证明,将重合闸时间由0.8s延长到2.0s,将使重合闸成功率由40%以下提高到60%左右。5、有关保护选型10kV线路保护装置的配置虽然较简单,但由于线路的复杂性和负荷的多变性,保护装置的选型还是值得重视的。根据诸城电网保护配置情况及运行经验,建议在新建变电所中应采用保护配置***的微机保护。微机保护在具备电流速断、过电流及重合闸的基础上,还应具备低压(或复压)闭锁、时限速断等功能,以适应线路及负荷变化对保护方式的不同要求。40CPU11303MR-J2-100C6SL32240BE322UA06SL32440BB121BA16SL32550AA004CA16ES5420-4UA14JEPMC-CM200JEPMC-IO200JEPMC-MB200JEPMC-PL200V4550220-01006SE6420-2AD27-5CA13HAC14549-3/12A3HAC14551-2105ADSQC601A21/A43DSQC6023HAC12816-1"DSQC6093HAC14178-1"DSQC6233HAC020079-001DSQC6613HAC026253-001DSQC662CQM1-DA022D16B6ES5095-8MA036ES5431-8MA116ES5451-8MR126ES5464-8MF116GK7343-1EX21-0XE0317393-053VL3725-1AA34-0AA03VL4740-1AA34-0AA06FX5002-2AH00-2BD0735117-056SC6130-0FE013HAB8101-8/12B3HAC0373-1DSQC3613HAC040194-0013HAC3180-1DSQC373140CPU67160PM633T1F-08AD-1140DAO85300TK-IOLI016DM1001-2LA02-26ES5525-3UA11ECPE84-0PE84140ARI03010140NOE77101490NRP95400EL3020EL3020FWX-175AA06B-0373-B577#70086ES5314-3UA116ES5721-0CB606ES7463-2AA00-0AA0ACS800-01-0011-3+P901ACS800-01-0016-3+P901ACS800-01-0030-3+P901ACS800-04-0170-3+P901ACS800-04-0400-3+P901ACS800-04-0440-3+P9013BSE008062R1PM633A06B-0127-B0751747-SDNHC-SFS52MR-J2CN1MR-J2S60AMR-JHSCBL5M-LMR-PWCNS1140ACI03000140DDI35300140DDO35300140XTS00200140CPS11420140CPU11303140CRP93200140NOE77100140XBP00600FBM204140CPU11303MR-J2-100C6SL32240BE322UA06SL32440BB121BA16SL32550AA004CA16ES5420-4UA14JEPMC-CM200JEPMC-IO200JEPMC-MB200JEPMC-PL200V4550220-01006SE6420-2AD27-5CA13HAC14549-3/12A3HAC14551-2105ADSQC601A21/A43DSQC6023HAC12816-1"DSQC6093HAC14178-1"DSQC6233HAC020079-001DSQC6613HAC026253-001DSQC662CQM1-DA022D16B6ES5095-8MA036ES5431-8MA116ES5451-8MR126ES5464-8MF116GK7343-1EX21-0XE0317393-053VL3725-1AA34-0AA03VL4740-1AA34-0AA06FX5002-2AH00-2BD0735117-056SC6130-0FE013HAB8101-8/12B3HAC0373-1DSQC3613HAC040194-0013HAC3180-1DSQC373140CPU67160PM633T1F-08AD-1140DAO85300TK-IOLI016DM1001-2LA02-26ES5525-3UA11ECPE84-0PE84140ARI03010140NOE77101490NRP95400EL3020EL3020FWX-175AA06B-0373-B577#70086ES5314-3UA116ES5721-0CB606ES7463-2AA00-0AA0ACS800-01-0011-3+P901ACS800-01-0016-3+P901ACS800-01-0030-3+P901ACS800-04-0170-3+P901ACS800-04-0400-3+P901ACS800-04-0440-3+P9013BSE008062R1PM633A06B-0127-B0751747-SDNHC-SFS52MR-J2CN1MR-J2S60AMR-JHSCBL5M-LMR-PWCNS1140ACI03000140DDI35300140DDO35300140XTS00200140CPS11420140CPU11303140CRP93200140NOE77100140XBP006001771-ASB1771-P4S1771-P7MAC112C-0-HD-2-C/130-A-1EPL-10200EPM-H310140ARI03010140CPS11420140DDI35300140DDO35300140XBP01000140XBP01600140XTS00200GPD505V-A027A16B-1600-0090/04B1756-L61B3503E35113604EWH1-2FFJPDC-C041HDS03.2-W100N-H3RG9001-0AG003RG9010-0AA00M500DR48-1800AMVI56-MNETLT-MODULINT25AIC693CPU364IC693PWR331IC697BEM731IC697CMM742IC697CPX935IC697MDL241IC697MDL341IC697PWR711PCD4.B900PM633DSBC1766SN1123-1AA00-0HA0SICOMPIPCRI206DD1661-0AD06ES5430-7LA126ES5451-7LA121756-CNB1756-CP31756-ENBT1756-IF161756-IM16I1756-IV161756-OF41756-OW16I1756-PA721786-XTMVI56-GEC1756-CNBR/E1756-IF161756-OF86SE7021-3TP60A5E01231722SP-231N1756-L621756-L631756-M24/4TPC-2710PC2-CPU39SAMCAN39SDM024DCCBN1785-L20BTIMMERSY/MAXMODEL4003HAC023195-001/04140ACI04000140ACO02000140ARI03010140CPS11420140CPU65260140CRA93200140CRP93200140DAI75300140DDO35300140XBP010000140XBP016000PTQ-PDPMV1ABM-407B-1-S-CE-S2931785-V40LDO8103HAC14549-3/12A3HAC14551-2/105A3HAC1782-1/07A3HAL025338-006/08ADSQC601A21/A43DSQC6023HAC12816-1DSQC6093HAC14178-1DSQC6233HAC020079-001DSQC6613HAC026253-001DSQC6623HAC026254-001TD15-2500-58719-320-587710-587782711-K3A17L11LA7133-4AA601785-V40LA20B-2902-04111746-A71746-C91746-OW161756-L631770-CD11771-OVN1771-P6R)