Comprehensive Analysis of Turn-insulating Fault of 35 kV Dry-type Air-core Reactors

PENG Qingjun; JIANG Xiongwei; SIMA Wenxia; YAN Bing; QIAN Guochao

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Comprehensive Analysis of Turn-insulating Fault of 35 kV Dry-type Air-core Reactors

更新时间：2025-12-08

- Comprehensive Analysis of Turn-insulating Fault of 35 kV Dry-type Air-core Reactors
- Vol. 44, Issue 6, Pages: 2005-2011(2018)
- 作者机构：
  
  1. 云南电网有限责任公司电力科学研究院
  2. 重庆大学输配电装备及系统安全与新技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：10 July 2018，
  
  Published：2018
- 稿件说明：
移动端阅览
PENG Qingjun, JIANG Xiongwei, SIMA Wenxia, et al. Comprehensive Analysis of Turn-insulating Fault of 35 kV Dry-type Air-core Reactors[J]. 2018, 44(6): 2005-2011.
DOI：

PENG Qingjun, JIANG Xiongwei, SIMA Wenxia, et al. Comprehensive Analysis of Turn-insulating Fault of 35 kV Dry-type Air-core Reactors[J]. 2018, 44(6): 2005-2011. DOI：

摘要

深入开展35 kV干式空芯电抗器匝间绝缘击穿放电机理研究

对改进35 kV干式空芯电抗器制造工艺和提高35 kV干式空芯电抗器的可靠运行具有重要意义。为此

基于现场试验、ATP-EMTP及有限元仿真计算开展了35 kV干式空芯电抗器系统过电压、匝间电场分布以及匝间绝缘材料的空间电荷等研究。通过研究发现:安装有RC阻容吸收器的情况下

开断电抗器产生的过电压标幺值仅为2.0

但系统过电压的累积效应会造成绝缘材料性能下降。同时

存在于绝缘材料层间的间隙将导致电抗器匝间电场畸变度达到5.5倍

另外

热老化会引起绝缘材料空间电荷特性改变和工频击穿场强的下降。在上述3个方面影响下

35 kV干式空芯电抗器匝间绝缘容易发生击穿事故。

Abstract

To find the mechanism of turn-insulating fault caused by switching-off shunt reactor in 35 kV system

which is of an important significance to the manufacturing process of dry-type air core reactor and improve its reliability

we researched the system overvoltage of the dry-type air-core reactor and distribution of the inter-turn electric field based on the field tests

ATP-EMTP

and finite element simulations. The space charge properties in inter-turn insulation were also measured. The analysis results indicate that the over-voltage caused by switching-off shunt reactor is 2.0 p.u. with R-C protector on the reactor’s side

but the accumulation effect of overvoltage can lead to the degradation of insulation. The distortion of electric field intensity resulting from the gap between turn-to-turn insulation is 5.5 times. In addition

the influence of thermal aging on the change of space charge characteristic and the decrease of breakdown voltage are the main factors that lead to the breakdown failure of turn-to-turn insulation of 35 kV dry-type air-core.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

短路工况下配电变压器绕组磁场-结构力场耦合特性及累积效应形变特性

Space Charge Measurements of Spacecraft Dielectric Materials Under Different Grounding Manners Using Pulse Electro-acoustic Method

Reversal Phenomenon of Discharge Polarity Effect in SF₆ Rod-plate Gap Under Impulse Voltages

Experimental Study on Flexible Control of Ferroresonance Overvoltage

Influence of Nano-AlN Modification on the Dielectric Properties of Meta-aramid Paper

Related Author

YUAN Fating

YANG Yi

ZHONG Hao

JIAN Shengkai

LI Haoyue

TANG Bo

ZHANG Pei

WU Zhancheng

Related Institution

Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station(China Three Gorges University)

College of Electrical Engineering and New Energy, China Three Gorges University

Institute of Electrostatic and Electromagnetic Protection, Mechanical Engineering College

State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University

Electric Power Research Institute,Shaanxi Electric Power Company

AI问答

⁰