Analysis on Interlocking Fault of S3C Disconnector with Countermeasure

LI Chuanjiang; NI Huichuan; WANG Weidong

doi:10.13296/j.1001-1609.hva.2015.05.035

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Analysis on Interlocking Fault of S3C Disconnector with Countermeasure

更新时间：2025-04-26

- Analysis on Interlocking Fault of S3C Disconnector with Countermeasure
- High VoltageApparatus Vol. 51, Issue 5, Pages: 188-192(2015)
- 作者机构：
  
  国网安徽省电力公司铜陵供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.05.035
  CLC： TM564.1
- Published：2015
- 稿件说明：
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[1]李传江,倪汇川,王卫东.S3C型隔离开关联锁缺陷分析及改进方案[J].高压电器,2015,51(05):188-192.

LI Chuanjiang, NI Huichuan, WANG Weidong. Analysis on Interlocking Fault of S3C Disconnector with Countermeasure[J]. High voltageapparatus, 2015, 51(5): 188-192.
[1]李传江,倪汇川,王卫东.S3C型隔离开关联锁缺陷分析及改进方案[J].高压电器,2015,51(05):188-192. DOI： 10.13296/j.1001-1609.hva.2015.05.035.

LI Chuanjiang, NI Huichuan, WANG Weidong. Analysis on Interlocking Fault of S3C Disconnector with Countermeasure[J]. High voltageapparatus, 2015, 51(5): 188-192. DOI： 10.13296/j.1001-1609.hva.2015.05.035.

摘要

隔离开关在电力系统中有着至关重要的作用

其性能的好坏直接关系到整个系统能否安全稳定的运行。而国网安徽省电力公司铜陵供电公司所投运的S3C型隔离开关经常因联锁无法解除而导致无法进行分、合闸操作

甚至将联锁部件挤变形

为降低该类故障概率

提高电网、设备安全运行可靠性

笔者就S3C型隔离开关的主、地刀间机械联锁的结构、原理及操作过程中的联锁部件受力情况进行了分析

并对联锁盘结构提出了改进方案。

Abstract

The S3 C disconnectors in a Power Supply Company often fail to perform switching operation due to interlocking fault

and some interlocks are even deformed by extrusion

which harms the safe operation of whole power supply system. Therefore

in order to decrease the probability of interlocking faults of S3 C disconnectors

the authors analyze the structure and working principle of the mechanical interlock between the main and grounding blades of S3 C disconnector

as well as the force condition during operation. As a result

they propose a corresponding countermeasure against the interlocking fault.

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Related Author

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ZHAO Lili

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Related Institution

School of Electrical Engineering, Xi'an Jiaotong University

Pinggao Group Co., Ltd.

Xi'an High Voltage Apparatus Research Institute Co., Ltd.

Xi'an Power Supply Company of State Grid Shaanxi Electric Power Co., Ltd.

Electric Power Research Institute, Yunnan Power Grid Co., Ltd.

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