Electrical Endurance Assessment System of SF<sub>6</sub> Circuit Breaker for Switching Capacitor Bank Based on Current Monitoring and Dynamic Resistance Analysis

CHEN Lei; WU Chengwei; LI Ao; MA Feiyue; YU Jiaying; DENG Junbo

doi:10.13296/j.1001-1609.hva.2024.01.007

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Electrical Endurance Assessment System of SF₆ Circuit Breaker for Switching Capacitor Bank Based on Current Monitoring and Dynamic Resistance Analysis

Research & Analysis | 更新时间：2025-04-26

- Electrical Endurance Assessment System of SF₆ Circuit Breaker for Switching Capacitor Bank Based on Current Monitoring and Dynamic Resistance Analysis
- High Voltage Apparatus Vol. 60, Issue 1, Pages: 55-62(2024)
- 作者机构：
  
  1.国网宁夏电力有限公司电力科学研究院，银川　 750000
  2.西安交通大学电气工程学院，西安　 710049
- 作者简介：
- 基金信息：
  
  Science and Technology Project of State Grid Ningxia Electrical Power Co., Ltd.(5229DK20055)
- DOI：10.13296/j.1001-1609.hva.2024.01.007
  CLC：
- Received：13 September 2023，
  
  Revised：30 November 2023，
  
  Published：16 January 2024
- 稿件说明：
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CHEN Lei, WU Chengwei, LI Ao, et al. Electrical Endurance Assessment System of SF₆ Circuit Breaker for Switching Capacitor Bank Based on Current Monitoring and Dynamic Resistance Analysis[J]. High voltage apparatus, 2024, 60(1): 55-62.
DOI：

CHEN Lei, WU Chengwei, LI Ao, et al. Electrical Endurance Assessment System of SF₆ Circuit Breaker for Switching Capacitor Bank Based on Current Monitoring and Dynamic Resistance Analysis[J]. High voltage apparatus, 2024, 60(1): 55-62. DOI： 10.13296/j.1001-1609.hva.2024.01.007.

摘要

电容器组SF

断路器电寿命状态监测工作对保障电网安全可靠运行意义重大。文中融合触头磨损计算方法和动态电阻分析法对SF

断路器电寿命进行评估，提出SF

断路器电寿命评估判据，首先基于断路器电流监测数据计算断路器触头磨损，对断路器电寿命状态进行判断预测，再利用动态电阻分析法印证判断出SF

断路器的真实状态，兼顾触头磨损计算法的实时性和动态电阻法的准确性。基于所提判据，研发了一套融合触头磨损和动态电阻的SF

断路器电寿命评估系统。该系统可基于断路器投切数据和动态电阻准确地评估SF

断路器的电寿命，同时在人机交互界面上直观地呈现结果，为工作人员进行断路器状态检修提供辅助决策。

Abstract

The electrical endurance status monitoring of SF

circuit breakers for switching capacitor bank is of great significance to ensure safe and reliable operation of power grid. In this paper

the contact wear calculation method

and dynamic resistance analysis method are combined to assess the electrical endurance of SF

circuit breaker

and the criteria base of electrical endurance of SF

circuit breaker is proposed. Firstly

the circuit breaker contact wear is calculated based on the current monitoring data of the circuit breaker

and the electrical endurance of the circuit breaker electrical is judged and predicted. Then the real condition of SF

circuit breaker is verified by dynamic resistance analysis method. Both the real-time performance of contact wear calculation method and the accuracy of dynamic resistance method are also considered. Based on the proposed criteria

a set of electrical endurance assessment system of SF

circuit breaker integrating contact wear and dynamic resistance is developed. The system can accurately assess the electrical endurance of SF

circuit breakers based on the switching data and dynamic resistance and

at the same time

visually present the results on the human-computer interaction interface

providing auxiliary decision for the staff to perform the maintenance of circuit breaker.

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Related Institution

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Electrical Endurance Assessment System of SF6 Circuit Breaker for Switching Capacitor Bank Based on Current Monitoring and Dynamic Resistance Analysis

DOI：10.13296/j.1001-1609.hva.2024.01.007

摘要

Abstract

关键词

Keywords

references

Electrical Endurance Assessment System of SF₆ Circuit Breaker for Switching Capacitor Bank Based on Current Monitoring and Dynamic Resistance Analysis