關(guān)于開關(guān)柜斷路器防跳繼電器無法復(fù)歸問題的處理方案
高鈺,宋曙光,李軍浩,王效永
(平高集團有限公司,河南 平頂山 467000)
摘 要:針對某 110 kV 輸變電工程 10 kV 開關(guān)柜調(diào)試過程中,出現(xiàn)“斷路器合分一次后,無法進一步電氣操作,但手動合分正常,此時重新將斷路器控制回路斷電,又能再次操作斷路器,但仍只能合分一次,無法再次電氣操作”的問題,對斷路器內(nèi)部防跳回路、合閘回路、跳位監(jiān)視回路及微機保護接線回路進行分析,并根據(jù)實際的現(xiàn)場調(diào)試情況或者運行工況,制定出最符合現(xiàn)場情況的解決方案,為后續(xù)現(xiàn)場調(diào)試或?qū)嶋H運行時出現(xiàn)同類問題提供了參考。
關(guān)鍵詞:斷路器;防跳;跳位監(jiān)視;自保持;繼電器復(fù)歸
中圖分類號:TM591 文獻標識碼:B 文章編號:1007-3175(2022)01-0032-04
A Solution for the Resetting Problem of the Anti-Trip
Relay Circuit Breaker of Switchgear
GAO Yu, SONG Shu-guang, LI Jun-hao, WANG Xiao-yong
(Pinggao Group Co., Ltd, Pingdingshan 467000, China)
Abstract: In a 110 kV power transmission and transformation project, a problem exists in the progress of the 10 kV switchgear debugging.The problem is that after the first movement of the circuit breaker, it can only operate by hand movement. In this situation, if the operator cuts the electricity of the circuit breaker control loop, the circuit breaker will run again, but it will still be a one-time operation.Given this problem, this article analyzed the internal anti-trip circuit, closing circuit, trip monitoring circuit, and microcomputer protection wiring circuit of the circuit breaker. It makes an appropriate solution for the on-set situation and provides a reference for similar problems.
Key words: circuit breaker; anti-trip; trip monitoring; self-hold; relay reset
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