CAJ | 학술논문

由于气体绝缘全封闭组合电器(GIS)设备的封闭特性,GIS设备的事故处理较敞开式设备更加复杂。文中对 GIS母线跳闸后试送电源的选择、线路、主变试送方案等关键问题进行了分析,提出一套GIS母线跳闸事故的快速恢复供电方案。该方案在母线跳闸后仅利用故障录波信息采用差动、方向保护原理准确定位故障区域,试送失电间隔时手动置位母线保护对应间隔的刀闸位置,线路/主变保护无需修改、恢复临时保护定值,保证试送过程中线路、主变、母线故障均可由快速无延时保护动作切除,提高了恢复供电速度和电网运行稳定性,具有一定的工程应用价值。
유우기체절연전봉폐조합전기(GIS)설비적봉폐특성,GIS설비적사고처리교창개식설비경가복잡。문중대 GIS모선도갑후시송전원적선택、선로、주변시송방안등관건문제진행료분석,제출일투GIS모선도갑사고적쾌속회복공전방안。해방안재모선도갑후부이용고장록파신식채용차동、방향보호원리준학정위고장구역,시송실전간격시수동치위모선보호대응간격적도갑위치,선로/주변보호무수수개、회복림시보호정치,보증시송과정중선로、주변、모선고장균가유쾌속무연시보호동작절제,제고료회복공전속도화전망운행은정성,구유일정적공정응용개치。
Owing to the closed characteristics of gas insulated switchgear(GIS)devices,handling of GIS equipment accident has become more complicated than that of open devices.An analysis is made of the rapid power supply scheme after GIS bus trip accident.In this scheme,the fault area is accurately located j ust using fault recorded data through protection principles,the protection setting value of lines and transformers without the need of modifying and restoring the manually set isolating switch status of bus protection.The fault of lines,transformers and bus can be removed without delay during the restoration of power supply,while the power recovery rate and the stability of power grid are improved greatly.The proposed scheme has some engineering application value in handling GIS bus trip accidents.