变压器谐波闭锁差动保护新判据

WANG Zuguang; REN Jie; QIU Xinhong; ZHAO Anguo; YANG Xiaoming

您当前的位置：

首页 >

文章列表页 >

变压器谐波闭锁差动保护新判据

更新时间：2025-08-13

- 变压器谐波闭锁差动保护新判据
- Automation of Electric Power Systems Vol. 30, Issue 14, (2006)
- 作者机构：
  
  1. 国电自动化研究院/南瑞集团公司,江苏省,南京市,210003
  2. 山东聊城供电公司,山东省,聊城市,252000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
移动端阅览
WANG Zuguang, REN Jie, QIU Xinhong, et al. [J]. Automation of electric power systems, 2006, 30(14).
DOI：

WANG Zuguang, REN Jie, QIU Xinhong, et al. [J]. Automation of electric power systems, 2006, 30(14). DOI：

摘要

分析了变压器差动保护中的励磁涌流二次谐波成分，认为对称性涌流中的二次谐波分量对于闭锁谐波制动差动保护是足够的，提出借助直流分量加强二次谐波作用的新判据。提出的另一判据是用定增斜率制动特性取代原用的双斜率制动特性。分析计算、试验和试运行经验证明了所提出的新判据正确、可行。

Abstract

The second harmonic component of magnetic inrush currents in transformer differential protection is analyzed. The analytical result shows that the second harmonic component of symmetric inrush current is big enough for blocking the differential protection. Hence a new criterion is proposed to intensify the second harmonic with the contribution of DC component. A second new criterion proposed is a constant-increase-of-slop restraint characteristic which replaces the old dual-slop percentage restraint characteristic. Analysis

tests and operation experiences prove the validity and feasibility of the proposed criteria.

关键词

Keywords

references

Views

1736

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Characteristic Analysis of Second Harmonic of Magnetizing Inrush Current with No-load Transformer Energization

Analysis on Fault Mechanism of Fiber-optical Current Transformers with Sine Wave Modulation

高比例变流型电源并网的输电系统三相短路电流计算

解耦双同步坐标系下单相锁相环技术

应用于空心线圈电子式互感器的双环数字积分器设计

Related Author

Zhijun YE

Wang YU

Rongxian ZHENG

Julong GOU

Jiliang LUO

Peng LI

Xu WEI

Jieqing DENG

Related Institution

College of Information Science and Engineering, Huaqiao University

Fujian Engineering Research Center of Motor Control and System Optimal Schedule

State Grid Jiangsu Electric Power Co., Ltd.

Electric Power Research Institute of State Grid Jiangsu Electric Power Co., Ltd.

Economic and Technological Research Institute of State Grid Anhui Electric Power Co. Ltd.

⁰