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220kV1,2(1.,615000;2.,615100):220kV,,:;;Abstract:Thispaperdescribesthebehaviorsofrelayprotectiondevicesrelatedtoa220kVtransmissionlineincaseofsingle-phaseearthingbyhigh-resistanceinXichangElectricPowerBureau.Theabnormalbehaviorsofrelayprotectionsareana2lyzedindetails,whichwillprovideusefulreferenceforsimilarfailureanalysis.Keyword:protection;move;analysis:TM588:B:1003-6954(2008)06-0066-0212006461034220kV220kVC,(),()4000msABC,220kV220kV1D++0++,()120ms(220kV)ABC,220kV220kV2,220kV,78kW,180A22.1,,4000msCAB2.3220kV2,33.1,1CC,,,,,220kV,1.0A,120A(TA600/5);4.6A,552AC,,,()55,66316200812SichuanElectricPowerTechnologyVol.31,No.6Dec.,20082.2180A2A(),4000msABC,220kV,,,(),180,,,,,,,12,12,,(),1D++0++,1,120msABC220kVC3.23.2.1,,,,,,3.2.2220kV,,,4000msCAB,3.2.3220kV220kV2(LFP-902),,MONICPU,MONICPUCPUMONI,,:(1963-),,,,(1961-),,,(:2008-08-10)(62),()(),4:6.8:,5,,,,5Messko,,,,(85)(:2008-08-10):;,,;,;6316200812SichuanElectricPowerTechnologyVol.31,No.6Dec.,2008:7