110kV广安站继电保护配置及整定计算PAGE\*MERGEFORMATIV【摘要】为满足电网对继电保护提出的可靠性、选择性、灵敏性、速动性的要求，充分发挥继电保护装置的效能，必须合理的选择保护及其的定值，以保持各保护之间的相互配合关系。做好变电站继电保护定值的整定计算工作是保证电力系统安全运行的必要条件。本文详细地讲述了如何根据110kV广安变电站电气主接线及基本参数，参数标幺化，进行短路电流计算，进而根据国家继电保护规程，对变压器，110kV线路，35kV线路配置相应保护。并通过对所配置的继电保护进行整定计算和校验，论证继电保护配置的正确性。并加装自动重合闸装置，提高供电可靠性。关键词：短路电流计算；继电保护配置；三段式电流保护【Abstract】Inordertomeettheneedsofpowernetworkonrelayprotectionispresentedandthereliability,selectivity,sensitivity,liquidrequirement,givefullplaytotheperformanceofrelayprotectiondevices,mustbeareasonablechoiceofprotectionsettingvalue,inordertomaintaintherelationsbetweeneachother.Doagoodjobofrelayprotectionsettingcalculationistoensurethesafeoperationofthepowersystemandnecessarycondition.Thispaperdescribeshowtoanalyzetheselected110kVgridrelayprotection--threedistanceprotection,foursectionofzerosequenceprotection,aswellasthetransformerdifferentialprotectionandthebackupprotection,35kVcurrentprotection,andthesettingcalculationandverificationofwhetherornottomeettheregulationsandrequirements.Andthroughagiven110kVwiringdiagramandparameters,short-circuitcurrentcalculation,basedontheconfigurationofrelayprotectionsettingcalculationandcheckingofrelayprotectionconfiguration,provedcorrect.Keywords:Short-circuitCurrentCalculation;RelayProtectionConfiguration;Threephasecurrentprotection;TOC\o"1-3"\h\uHYPERLINK\l_Toc14971目录HYPERLINK\l_Toc1401引言1HYPERLINK\l_Toc86221.1本文研究背景意义1HYPERLINK\l_Toc298781.2本文主要内容1HYPERLINK\l_Toc222392110kV广安站原始资料2HYPERLINK\l_Toc41162.1变电站接线图及运行方式2HYPERLINK\l_Toc73832.2主变压器型号及参数2HYPERLINK\l_Toc18162.335kV线路情况3HYPERLINK\l_Toc106683短路电流计算4HYPERLINK\l_Toc94973.1短路计算的目的4HYPERLINK\l_Toc132583.2基准值的选择4HYPERLINK\l_Toc177903.3短路电流计算的步骤4HYPERLINK\l_Toc217583.4各元件参数标么值的计算5HYPERLINK\l_Toc78993.4短路电流的计算6HYPERLINK\l_Toc178224继电保护及安全自动装置的配置原则9HYPERLINK\l_Toc153504.1总则9HYPERLINK\l_Toc291754.2110kV线路保护配置原则9HYPERLINK\l_Toc174514.3变压器保护配置原则11H