Ultrasonic detection on internal PD failure in SF<sub>6</sub> TA

MAO Wen-qi1; MAO Liu-ming2; HU Xu2

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Ultrasonic detection on internal PD failure in SF₆ TA

更新时间：2025-11-18

- Ultrasonic detection on internal PD failure in SF₆ TA
- Vol. 31, Issue 5, Pages: 49-51(2011)
- 作者机构：
  
  1. 武汉大学
  2. 湖南省电力公司科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM452
- Published：2011
- 稿件说明：
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[1]毛文奇,毛柳明,胡旭.利用超声波法检测SF_6电流互感器内局部放电故障[J].湖南电力,2011,31(05):49-51.

MAO Wen-qi1, MAO Liu-ming2, HU Xu2. Ultrasonic detection on internal PD failure in SF₆ TA[J]. 2011, 31(5): 49-51.
[1]毛文奇,毛柳明,胡旭.利用超声波法检测SF_6电流互感器内局部放电故障[J].湖南电力,2011,31(05):49-51. DOI：

MAO Wen-qi1, MAO Liu-ming2, HU Xu2. Ultrasonic detection on internal PD failure in SF₆ TA[J]. 2011, 31(5): 49-51. DOI：

摘要

利用超声波法对某变电站220 kV电流互感器内局部放电故障进行了检测与定位。经过解体检查分析

判断故障为电流互感器屏蔽管未可靠接地所致

验证了超声波法的有效性

并提出了相应的反事故措施。

Abstract

Ultrasonic method was applied for the detection and location of the partial discharge in a certain 220 kV current transformer.The TA is disassembled for inspection and found that the fault reason is the earthing failure of the shielding tube and appropriate countermeasures are put forward.

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Related Institution

State Grid Hunan Electric power Corporation Research Institute

State Grid Hunan Electric Power Corporation

Hunan Electric Power Construction Supervision & Consultancy CO.,LTD,Chansha

湖南省电力公司超高压管理局湖南长沙410015

EHV Administration of Hunan Electric Power Corporation

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Ultrasonic detection on internal PD failure in SF6 TA

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Ultrasonic detection on internal PD failure in SF₆ TA