Action Behavior Analysis of Current TransformerPosition and Dead zone Fault Protection

WANG Liping

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Action Behavior Analysis of Current TransformerPosition and Dead zone Fault Protection

更新时间：2026-02-13

- Action Behavior Analysis of Current TransformerPosition and Dead zone Fault Protection
- Vol. 45, Issue 1, Pages: 40-44(2022)
- 作者机构：
  
  国网四川省电力公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM774
- Published：2022
- 稿件说明：
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WANG Liping. Action Behavior Analysis of Current TransformerPosition and Dead zone Fault Protection[J]. 2022, 45(1): 40-44.
DOI：

WANG Liping. Action Behavior Analysis of Current TransformerPosition and Dead zone Fault Protection[J]. 2022, 45(1): 40-44. DOI：

摘要

文中对电流互感器（CT）在不同安装位置发生位于断路器与CT之间的故障进行了保护的动作行为分析。同时分析了死区故障时，断路器失灵保护和死区保护的动作逻辑，梳理了四川电网220 kV以上断路器CT安装位置的现状，并提出为了保障系统稳定应严格按照反事故措施要求将CT在断路器两侧布置的建议。

Abstract

The action behavior of the protection is analyzed when current transformer (CT) is installed in different positions in case that the fault point is between the circuit breaker and the CT. If the action behavior could not remove the fault reliably

the range of outage would be extended. At the same time

in the case of a dead-zone fault

the action logics of the failure protection of circuit breaker and the dead-zone protection are analyzed. The current situation of the nstallation locations of CT of 220 kV circuit breaker and above in Sichuan power grid is summarized

and based on the existing researches

the suggestions are proposed that the CT should be arranged on both sides of circuit breaker strictly in accordance with the requirements of anti accident measures.

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Related Author

Liu Gang

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Related Institution

Metering Center of State Grid Sichuan Electric Power Company

Sichuan Electric Power Design ＆ Consulting Co．，Ltd．

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