Experimental Investigation of the Partial Discharge Feature with the Air Gap Model in Oil-paper Insulation

XU Chun-she1; SUN Zhen-quan2; ZHAO Xue-feng2; LI Yan-ming2

doi:10.13296/j.1001-1609.hva.2012.02.010

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Experimental Investigation of the Partial Discharge Feature with the Air Gap Model in Oil-paper Insulation

更新时间：2025-04-26

- Experimental Investigation of the Partial Discharge Feature with the Air Gap Model in Oil-paper Insulation
- High VoltageApparatus Vol. 48, Issue 2, Pages: 34-41(2012)
- 作者机构：
  
  1. 江苏省电力公司
  2. 西安交通大学电气工程学院
  3. 陕西省地方电力(集团)有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.02.010
  CLC： TM855
- Published：2012
- 稿件说明：
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[1]徐春社,孙振权,赵学风,李彦明.油纸绝缘气隙模型局部放电特性试验研究[J].高压电器,2012,48(02):34-41.

XU Chun-she1, SUN Zhen-quan2, ZHAO Xue-feng2, et al. Experimental Investigation of the Partial Discharge Feature with the Air Gap Model in Oil-paper Insulation[J]. High voltageapparatus, 2012, 48(2): 34-41.
[1]徐春社,孙振权,赵学风,李彦明.油纸绝缘气隙模型局部放电特性试验研究[J].高压电器,2012,48(02):34-41. DOI： 10.13296/j.1001-1609.hva.2012.02.010.

XU Chun-she1, SUN Zhen-quan2, ZHAO Xue-feng2, et al. Experimental Investigation of the Partial Discharge Feature with the Air Gap Model in Oil-paper Insulation[J]. High voltageapparatus, 2012, 48(2): 34-41. DOI： 10.13296/j.1001-1609.hva.2012.02.010.

摘要

为了研究直流输电系统中换流变压器油纸绝缘的局部放电特性

设计构造了典型的油纸局部放电模型———气隙放电模型。针对同一模型分别施以交流电压、直流电压以及冲击衰减振荡电压

采用IEC 60270-2000推荐的脉冲电流法分别检测与分析该模型局部放电的不同特征参数。对比研究了在交流、直流及振荡冲击电压下油纸绝缘气隙放电模型的局部放电脉冲特征参量包括局部放电起始电压、熄灭电压、放电波形、放电水平、放电重复率等

对实现换流变压器的局部放电在线监测与绝缘状态综合评估有一定的指导意义。

Abstract

In order to investigate the partial discharge（PD） characteristic of the oil-paper insulation of the converter transformer in HVDC power transmission systems

the typical defect model-air gap discharge model in oil-paper insulation is designed.For the same sample

PDs are measured and analyzed with electrical pulse current method in accordance to IEC 60270—2000 recommendation under AC

DC and the damped alternating current（DAC） voltages

respectively.Some characteristic parameters of the PD in air gap of oil-paper insulation including the partial discharge inception voltage（PDIV）

the partial discharge extinction voltage（PDEV）

PD pulse level

pulse current shape

and repetition rate of the partial discharge are investigated comparatively.All these will be helpful for the PD monitoring on-line and insulation evaluation of the converter transformer.

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