双回线保护方案探讨

卜明新<sup>1</sup>; 常风然<sup>2</sup>; 林榕<sup>3</sup>

引用本文:	卜明新,常风然,林榕.双回线保护方案探讨[J].电力系统保护与控制,2008,36(1):84-86.
	BU Ming-xin,CHANG Feng-ran,LIN Rong.Discussion about protection scheme for parallel lines[J].Power System Protection and Control,2008,36(1):84-86

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双回线保护方案探讨
卜明新¹, 常风然², 林榕³
1.邯郸供电公司,河北邯郸 056035;2.河北电力调度中心,河北石家庄 050021;3.河北省电力勘测设计研究院，河北石家庄 050031

摘要:

目前在220 kV系统中同杆并架双回线广泛存在，同杆并架双回线的保护配置要考虑一些以往非同杆并架双回线的问题，结合河北南网线路保护装置及通道的具体情况，对220 kV龙崇同杆并架线路保护配置方案进行了分析比较和方案论证，提出了可行的保护解决方案，并针对保护专用和复用通道进行了技术、经济分析比较，对开关与CT之间死区故障的快速切除、同杆并架双回线的重合闸等有关问题，提出了解决方案。

关键词: 同杆双回线通道；重合闸

DOI：10.7667/j.issn.1674-3415.2008.01.019

分类号:

基金项目:

Discussion about protection scheme for parallel lines

BU Ming-xin¹, CHANG Feng-ran², LIN Rong³

1. Handan Power Supply Company, Handan 056035,China;2. Hebei Electric Power Dispatching and Communication Centre, Shijiazhuang 050021,China;3.Hebei Electric Power Survey and Designing Institute, Shijiazhuang 050031,China

Abstract:

Now，the double-circuit parallel transmission lines are general arranged in 220kV power system．There are some special problem in the protection＇s configuration other than the one way line．According to the specific circumstances of the line protection running in Hebei Southern Electric Power Network, this paper carries on the analysis, comparison and the proof to the protection＇s configuration of 220kV longchong- double-circuit parallel transmission line. It proposes a feasible protection solution and carries on the technology and economical comparison for the protecting path. It also studies the problem in reclosure when the double-circuit parallel transmission lines are fast excised because of the dead-zone fault happening between the circuit breaker and TA, and the solution is put forward.

Key words: doule circuit line on the same pole path reclousure

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