多绕组电力变压器内部短路稳态分析:（二）实验验证与差动保护灵敏度分析

TANG Qichao; WANG Zanji; WANG Weijian

您当前的位置：

首页 >

文章列表页 >

多绕组电力变压器内部短路稳态分析:（二）实验验证与差动保护灵敏度分析

更新时间：2025-08-13

- 多绕组电力变压器内部短路稳态分析:（二）实验验证与差动保护灵敏度分析
- Automation of Electric Power Systems Vol. 30, Issue 11, (2006)
- 作者机构：
  
  清华大学电机系电力系统国家重点实验室,北京市,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
移动端阅览
TANG Qichao, WANG Zanji, WANG Weijian. [J]. Automation of electric power systems, 2006, 30(11).
DOI：

TANG Qichao, WANG Zanji, WANG Weijian. [J]. Automation of electric power systems, 2006, 30(11). DOI：

摘要

通过在一台三相双绕组电力变压器内部设置各种短路来测试线端电压和电流，并与仿真计算的结果进行比较，验证了所提出的变压器内部短路故障分析的电路模型和计算方法。在此基础上，根据所设置的对地短路、匝间短路、相间短路等3种类型短路故障的仿真计算结果，分析了现有差动保护对这种变压器的保护灵敏度，指出纵差保护的灵敏度基本令人满意，而要提高零差保护的灵敏度，还需要进一步研究补偿措施。

Abstract

An experiment has been carried out by locating various short circuits one by one in the windings and measuring the voltages and currents at line ends of a three-phase double-winding power transformer. The comparisons between measured results and calculated ones verify the proposed equivalent circuit model and the calculation method in reference [1] for simulating internal short circuits in power transformers. Based on the verification of the simulation method

the sensitivity of the existing differential relay protection has been analyzed using calculated results of the internal short circuits to ground

inter-turn short circuits and inter-phase short circuits for the testing transformer and the conclusion has been made that the sensitivity of longitudinal differential relay protection is satisfactory for the transformer and the further study is needed to improve the sensitivity of neutral current differential relay protection.

关键词

Keywords

references

Views

1830

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

多绕组电力变压器内部短路稳态分析:（一）建模与仿真

Key Technologies and Prospects of Modeling and Simulation of New Power System

区域综合能源系统若干问题研究

基于IEC 61850的变压器振动监测信息建模与实现

水电机组数字化及其工程应用

Related Author

TANG Qichao

WANG Zanji

WANG Weijian

Qi GUO

Yuanhong LU

JIA Hongjie

XU Chenbo

LI Zhaohui

Related Institution

State Key Lab of Power System, Deportment of Electrical Engineering, Tsinghua University

State Key Laboratory of HVDC (Electric Power Research Institute of China Southern Power Grid Company Limited)

National Energy Power Grid Technology R&D Centre

Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System

CSG Key Laboratory for Power System Simulation

⁰