Fault Analysis of 500 kV SF<sub>6</sub> Insulated Current Transformers

LI Lu; WU Jia-xin; ZHENG Yan; LAN Qi

doi:10.13296/j.1001-1609.hva.2011.12.019

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Fault Analysis of 500 kV SF₆ Insulated Current Transformers

更新时间：2025-04-26

- Fault Analysis of 500 kV SF₆ Insulated Current Transformers
- High VoltageApparatus Vol. 47, Issue 12, Pages: 100-103(2011)
- 作者机构：
  
  河南郑州供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.12.019
  CLC： TM452
- Published：2011
- 稿件说明：
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[1]李璐,吴加新,郑琰,兰琦.一起500kV SF_6电流互感器内部故障及分析[J].高压电器,2011,47(12):100-103.

LI Lu, WU Jia-xin, ZHENG Yan, et al. Fault Analysis of 500 kV SF₆ Insulated Current Transformers[J]. High voltageapparatus, 2011, 47(12): 100-103.
[1]李璐,吴加新,郑琰,兰琦.一起500kV SF_6电流互感器内部故障及分析[J].高压电器,2011,47(12):100-103. DOI： 10.13296/j.1001-1609.hva.2011.12.019.

LI Lu, WU Jia-xin, ZHENG Yan, et al. Fault Analysis of 500 kV SF₆ Insulated Current Transformers[J]. High voltageapparatus, 2011, 47(12): 100-103. DOI： 10.13296/j.1001-1609.hva.2011.12.019.

摘要

文中对河南郑州供电公司一起500 kV SF6电流互感器内部故障进行分析

判明事故原因为电流互感器内绝缘支撑件质量缺陷导致的绝缘闪络及制造过程中的机械损伤造成绝缘局部破坏导致内部放电

并对该类型电流互感器在制造、运输和维护检查中的若干问题提出了改进建议

目的是引起设备管理人员和厂家制造人员的重视

提高SF6气体绝缘电流互感器的可靠性。

Abstract

According to analysis on the internal fault of a 500 kV SF6 insulated current transformer the paper illustrates the failure cause

which is the quality defects lie in the internal insulation spacer and mechanical damage during its manufacturing.Some improving suggestions are given to the SF6 insulated current transformer’s manufacture

transportation and maintenance.

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Fault Analysis of 500 kV SF6 Insulated Current Transformers

DOI：10.13296/j.1001-1609.hva.2011.12.019

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Fault Analysis of 500 kV SF₆ Insulated Current Transformers