Slot Discharge Fingerprint Distribution of 10 kV Asynchronous Motor Stator Windings in the Case of Insulation Degradation

LI Chuanyang; SONG Jiancheng; LIN Lingyan; BI Xiaoyu; WANG Xiuxiu

doi:10.13296/j.1001-1609.hva.2015.02.006

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Slot Discharge Fingerprint Distribution of 10 kV Asynchronous Motor Stator Windings in the Case of Insulation Degradation

更新时间：2025-04-26

- Slot Discharge Fingerprint Distribution of 10 kV Asynchronous Motor Stator Windings in the Case of Insulation Degradation
- High VoltageApparatus Vol. 51, Issue 2, Pages: 35-43(2015)
- 作者机构：
  
  太原理工大学煤矿电气设备与智能控制山西省重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.02.006
  CLC： TM343
- Published：2015
- 稿件说明：
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[1]李传扬,宋建成,吝伶艳,毕小玉,王秀秀.10kV异步电动机定子绕组老化槽放电指纹分布规律的研究[J].高压电器,2015,51(02):35-43.

LI Chuanyang, SONG Jiancheng, LIN Lingyan, et al. Slot Discharge Fingerprint Distribution of 10 kV Asynchronous Motor Stator Windings in the Case of Insulation Degradation[J]. High voltageapparatus, 2015, 51(2): 35-43.
[1]李传扬,宋建成,吝伶艳,毕小玉,王秀秀.10kV异步电动机定子绕组老化槽放电指纹分布规律的研究[J].高压电器,2015,51(02):35-43. DOI： 10.13296/j.1001-1609.hva.2015.02.006.

LI Chuanyang, SONG Jiancheng, LIN Lingyan, et al. Slot Discharge Fingerprint Distribution of 10 kV Asynchronous Motor Stator Windings in the Case of Insulation Degradation[J]. High voltageapparatus, 2015, 51(2): 35-43. DOI： 10.13296/j.1001-1609.hva.2015.02.006.

摘要

在10 kV异步电动机制造过程中

为抑制运行中定子槽内发生放电

常在绕组直线部分包绕一定阻值的半导电层。尽管如此

电动机在运行过程中

由于电磁力的作用

槽放电仍然是导致电动机定子绝缘故障的主要原因之一。针对这一问题

设计并制作了宽度可调单层绕组定子铁心槽部模型

研究了F级绝缘10 kV异步电动机真机定子绕组绝缘在不同程度磨损老化后槽放电指纹的分布规律。通过提取表征放电特性的特征量

给出了定子绕组在不同磨损老化状态下

槽放电指纹随电压的变化规律

为10 kV电动机绝缘在线监测和寿命评估提供了判断依据。

Abstract

In the manufacturing process of a 10 kV asynchronous motor

a semi-conductive layer with certain resistance is often adopted to cover the linear part of coil to suppress the partial discharge in the slot. However

due to the electromagnetic force which exists when the motor is running

slot discharge is still one of the main causes of stator insulation fault. In this paper

a width adjustable slot model with a monolayer coil is designed to investigate the distribution patterns of slot discharge fingerprint for a class F10 kV asynchronous motor’s stator winding insulation with varying aging degrees. The variation law of slot discharge fingerprint with voltage is obtained by extracting the characteristic quantity of discharge at different aging degrees of stator winding. This study may provide a reference for online monitoring and life assessment of 10 kV motor insulation.

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Related Institution

Chang Sheng Shanxi Electromagnetic Wire Limited Company

Taiyuan University of Technology,Shanxi Key Laboratory of Mining Electrical Equipment and Intelligent Control

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