油/纸绝缘沿面局部放电特性研究

李军浩; 司文荣; 姚秀; 梁基重; 罗勇芬; 李彦明

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油/纸绝缘沿面局部放电特性研究

更新时间：2025-05-08

- 油/纸绝缘沿面局部放电特性研究
- Partial Discharge Characteristics over Oil/Paper Interface
- 西安交通大学学报 2009年43卷第6期页码：108-112
- 作者机构：
  
  西安交通大学电气工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2008-10-10. 作者简介: 李军浩(1980-),男,博士生;李彦明(联系人),男,教授,博士生导师. 基金项目: 国家自然科学基金资助项目(50877064)
- DOI：
  中图分类号： TM835.4
- 网络首发：2009-06-10，
  
  纸质出版：2009
- 稿件说明：
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李军浩, 司文荣, 姚秀, 等. 油/纸绝缘沿面局部放电特性研究[J]. 西安交通大学学报, 2009,43(6):108-112.

Partial Discharge Characteristics over Oil/Paper Interface[J]. 2009, 43(6): 108-112.
李军浩, 司文荣, 姚秀, 等. 油/纸绝缘沿面局部放电特性研究[J]. 西安交通大学学报, 2009,43(6):108-112. DOI：

Partial Discharge Characteristics over Oil/Paper Interface[J]. 2009, 43(6): 108-112. DOI：

摘要

采用局部放电测量方法

研究了油/纸沿面从局部放电起始到贯穿闪络整个过程中局部放电量、放电谱图、放电频率及单个放电脉冲的变化情况.采用两种具有不同老化程度的油样研究了油样在沿面闪络过程中对局部放电测量结果的影响.研究结果表明

在初始电子产生阶段

放电量和放电频率均很小

放电集中在工频峰值处

随着电压的升高

放电量和放电频率随之升高

放电处于工频上升处.当临近沿面闪络时

放电量会迅速增大

放电脉冲呈现脉冲序列形式

会听到较大的放电声.油样的老化会降低局部放电起始电压

并导致沿面放电在流注发展阶段的放电量和放电频率增加.

Abstract

The discharge charges

discharge pattern

discharge frequency and current pulse are measured from partial discharge(PD)inception to flashover. Two oil specimens with different aging degree are used

and its influence on flashover process over oil/paper interface is investigated in this experiment. The results indicate that the PD charges and PD frequency are small in inception stage

and PD happens in the crest of power frequency. The PD charges and PD frequency increase with the applied voltage rising

and PD occurs in the ascent block of power frequency. The PD charges significantly increase when the discharge develops to critical flashover stage

and the current pulse bursts. The PD inception voltage decreases to some extent in aged oil specimen. The oil aging degree exerts a great influence on PD charges and PD frequency in streamer development stage.

关键词

Keywords

references

WADA J, NAKAJIMA A, MIYAHARA H, et al. Surface breakdown characteristics of silicone oil for electric power apparatus [J]. IEEE Trans on Dielectrics and Electrical Insulation, 2006, 13(4):830-837.

YANG Jiaxiang, CHI Xiaochun, DING Lijian, et al. Creeping discharge performance of oil-paper insulation with streaming electrification [J]. IEEE Trans on Dielectrics and Electrical Insulation, 1997, 4(6): 780-784.

HANAOKA R, KOHRIN T, MIYAGAWA T, et al. Creepage discharge characteristics over solid-liquid interfaces with grounded side electrode [J]. IEEE Trans on Dielectrics and Electrical Insulation, 2002, 9(2):308-315.

OKUBO H, OKAMURA K, IKEDA M, et al. Creepage flashover characteristics of oil/paper interfaces and their scale effects [J]. IEEE Trans on Power Delivery, 1987, 2(1): 126-132.

YAMADA H, SATO T, COOKE C M. Measurement of time to flashover along dielectric surfaces in transformer oil using electro-optic coupling method [J]. IEEE Trans on Electrical Insulation, 1988, 23(4):757-764.

BAEK S, JOUNG J, KIM H, et al. Experimental research on the surface discharge characteristics for HTS cable termination [J]. IEEE Trans on Power Delivery, 2005, 20(3): 2351-2355.

司文荣,李军浩,李彦明,等. 直流下油中局部放电脉冲波形测量与特性分析[J]. 西安交通大学学报, 2008,42(4):481-485.

SI Wenrong,LI Junhao,LI Yanming,et al. Measurement and analysis for pulse current shapes of partial discharge in oil under DC voltage[J].Journal of Xi'an Jiaotong University, 2008,42(4):481-485.

王晓蓉,胡龙龙,严璋,等. 油纸绝缘中局部放电的超宽频特性研究[J]. 西安交通大学学报, 2001,35(10):1098-1100.

WANG Xiaorong,HU Longlong,YAN Zhang,et al.Study on partial discharge impregnated paper/press board using the ultra wide band technique[J]. Journal of Xi'an Jiaotong University,2001,35(10):1098-1100.

李光杰. 纳秒脉冲下变压器油中绝缘介质沿面闪络特性的实验研究[D]. 北京:中国科学院研究生院,2006.

ATTEN P, SAKER A. Streamer propagation over a liquid/solid interface [J]. IEEE Trans on Electrical Insulation, 1993, 28(2):230-242.

WATSON P K, QURESHI M I,CHADBAND W G. The growth of pre-breakdown cavities in silicone fluids and the frequency of the accompanying discharge pulses [J]. IEEE Trans on Dielectrics and Electrical Insulation, 1998, 5(3):344-350.

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