宁夏电力
寧夏電力
저하전력
NINGXIA ELECTRIC POWER
2014年
3期
40-44
,共5页
农村配电网%智能开关%保护配合%跳闸选择性
農村配電網%智能開關%保護配閤%跳閘選擇性
농촌배전망%지능개관%보호배합%도갑선택성
rural distribution network%intelligent switch%protection match%switch tripping selection
针对农村10 kV配电网线路长、分支多，线路各保护之间以及与变电站出线开关保护配合困难等问题，基于配电网自动化技术，对农村配电网开关跳闸选择性差进行了分析，提出了利用智能开关的来电延时合闸、电流保护、分界相间和自动重合闸功能，提高开关跳闸选择性的新方法，解决了开关保护难以配合的问题。结果表明：新方法不但可准确判断故障点，而且有效提高了农村10 kV配电网开关跳闸的选择性。
針對農村10 kV配電網線路長、分支多，線路各保護之間以及與變電站齣線開關保護配閤睏難等問題，基于配電網自動化技術，對農村配電網開關跳閘選擇性差進行瞭分析，提齣瞭利用智能開關的來電延時閤閘、電流保護、分界相間和自動重閤閘功能，提高開關跳閘選擇性的新方法，解決瞭開關保護難以配閤的問題。結果錶明：新方法不但可準確判斷故障點，而且有效提高瞭農村10 kV配電網開關跳閘的選擇性。
침대농촌10 kV배전망선로장、분지다，선로각보호지간이급여변전참출선개관보호배합곤난등문제，기우배전망자동화기술，대농촌배전망개관도갑선택성차진행료분석，제출료이용지능개관적래전연시합갑、전류보호、분계상간화자동중합갑공능，제고개관도갑선택성적신방법，해결료개관보호난이배합적문제。결과표명：신방법불단가준학판단고장점，이차유효제고료농촌10 kV배전망개관도갑적선택성。
Aiming at the problems of the long lines,many branches,and match difficulty between each line protection and substation outlet switch protection in rural 10 kV distribution network, based on distribution network automatization technology, analyzes the poor selection of switch tripping in rural distribution network, puts forward a new method to advance switch tripping selection using the intelligent switch function match such as incoming power time-delay switch on, current protection,interphase demarcation and automatic reclose,solves the problem of switch protection match difficulty. The result shows that the new method not only can accurately judge fault point,but also effectively improve the selection of switch tripping for rural 10 kV distribution network.
