Fault Diagnosis and Analysis on 220kV Capacitor Voltage Transformer

WANG Dawei; YANG Gang; ZHANG Na

doi:10.14044/j.1674-1757.pcrpc.2019.02.015

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Fault Diagnosis and Analysis on 220kV Capacitor Voltage Transformer

更新时间：2024-09-14

- Fault Diagnosis and Analysis on 220kV Capacitor Voltage Transformer
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 40, Issue 2, Pages: 78-82(2019)
- 作者机构：
  
  国网山西省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2019.02.015
  CLC： TM451.2
- Published：2019，
- 稿件说明：
移动端阅览
[1]王大伟,杨罡,张娜.220kV CVT故障的诊断及分析[J].电力电容器与无功补偿,2019,40(02):78-82.

WANG DAWEI, YANG GANG, ZHANG NA. Fault Diagnosis and Analysis on 220kV Capacitor Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2019, 40(2): 78-82.
[1]王大伟,杨罡,张娜.220kV CVT故障的诊断及分析[J].电力电容器与无功补偿,2019,40(02):78-82. DOI： 10.14044/j.1674-1757.pcrpc.2019.02.015.

WANG DAWEI, YANG GANG, ZHANG NA. Fault Diagnosis and Analysis on 220kV Capacitor Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2019, 40(2): 78-82. DOI： 10.14044/j.1674-1757.pcrpc.2019.02.015.

摘要

本文介绍了一起220 kV电容式电压互感器（CVT）的发热缺陷

通过红外测温确认其缺陷类型及部位

结合高压试验、返厂解体等分析缺陷原因

并验证其正确性。同时针对变电设备历史运行数据、所处环境等因素

提出基于融合特征的综合故障诊断体系

使其能更加准确、高效率地发现并诊断设备缺陷

保障设备安全运行。

Abstract

In this paper

the defect of over heat in 220 kV capacitor voltage transformer（CVT） is introduced The defect type and location are confirm by the infrared thermometry

the reason of the defect is analyzed by way of high voltage test and disassembly at the factory and its correctness is verified. At the same time

in view of such factors as historical operation data and the situated environment etc. of the substation equipment the comprehensive fault diagnosis system is proposed based on the fusion features

so to keep it find and diagnose fault of the equipment more accurately and efficiently and assure safe operation of the equipment.

关键词

电容式电压互感器（CVT）发热缺陷故障诊断融合特征

Keywords

capacitor voltage transformer（CVT）overheat defectfault diagnosisfusion feature

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Diagnostic Analysis on Abnormal Infrared of One 110 kV CVT

Analysis and Processing on Two Overheat Defects of Capacitor Voltage Transformer Electromagnetic Unit

Test Method on Site of Dielectric Loss for CVT

Influence of the Temperature Changes on CVT′s Accuracy

The Affect of 500kV CVT′s Top Terminal Grounding on the Dividing Capacitance C₂

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Related Institution

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