On-line Detection and Location of GIS Partial Discharges by UHF Sensing

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On-line Detection and Location of GIS Partial Discharges by UHF Sensing

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- On-line Detection and Location of GIS Partial Discharges by UHF Sensing
- High VoltageApparatus Issue 1, Pages: 11-15(1999)
- 作者机构：
  
  1. 清华大学
  2. 清华大学北京100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM595
- Published：1999
- 稿件说明：
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[1]刘卫东,黄瑜珑,王剑锋,钱家骊.GIS局部放电特高频在线检测和定位[J].高压电器,1999(01):11-15.

On-line Detection and Location of GIS Partial Discharges by UHF Sensing[J]. High voltageapparatus, 1999, (1): 11-15.
[1]刘卫东,黄瑜珑,王剑锋,钱家骊.GIS局部放电特高频在线检测和定位[J].高压电器,1999(01):11-15. DOI：

On-line Detection and Location of GIS Partial Discharges by UHF Sensing[J]. High voltageapparatus, 1999, (1): 11-15. DOI：

摘要

特高频（UHF）电磁波信号传感用于气体绝缘组合电器（GIS）的局部放电在线检测能够获得很好的抗干扰效果.研究了在GIS体外进行局部放电特高频传感的技术

开发了一种拥有可移动传感器的GIS局部放电在线检测定位仪器

并建立了相应的检测和定位方法.实际测量显示:文中提出的GIS局部放电体外传感方式能够获得满意的检测灵敏度、抗干扰效果和定位精度

所采用的移动式传感器具有一些重要的优点.

Abstract

High electromagnetic-interference immunity ability can be obtained in the on-line detection of partial discharges（PD）in gas-insulated-switchgear（GIS） by sensing the electro-magnetic signals electrically in UHF band Produced by the PD. Investigation are performed to sense the UHF signals from the outside of GIS. Based on the external UHF sensing technique

a PD detection device of GIS with movable sensors is developed

and its measuring and locating pro-cedures was established. It is been practically proved that the external UHF sensing technique is satisfactory in sensitivity

antiinterference ability and locating accuracy

and the movables of the sensors brings about some significant advantages.

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