摘要
探讨电力继电保护的工作原理、故障类型以及故障检测和维修策略。第一步,介绍了电力继电保护的工作原理,通过比较系统的电流、电压以及功率等参数,对可能发生的故障进行实时监测和处理。第二步,详细阐述了电力继电保护的常见故障类型,包括短路故障、过载故障以及接地故障。第三步,研究了不同的故障检测技术,如基于电流差动原理、电压差动原理、功率方向原理和阻抗谱分析的故障检测技术,可以有效检测和定位电力系统中的故障。第四步,探讨了电力继电保护的故障维修策略,包括故障诊断方法、故障定位方法和故障维修策略设计,对于提高电力系统的安全性和稳定性具有重要意义。
This paper discusses the working principle,fault types,fault detection and maintenance strategies of power relay protection.In the first step,the working principle of power relay protection is introduced,and the possible faults can be monitored and handled in real time by comparing the parameters such as current,voltage and power of the system.In the second step,the common fault types of power relay protection are expounded in detail,including short circuit fault,overload fault and grounding fault.Thirdly,different fault detection technologies are studied,such as fault detection technology based on current differential principle,voltage differential principle,power direction principle and impedance spectrum analysis,which can effectively detect and locate faults in power system.The fourth step discusses the fault maintenance strategy of power relay protection,including fault diagnosis method,fault location method and fault maintenance strategy design,which is of great significance to improve the safety and stability of power system.
作者
李娇
LI Jiao(National Energy Group Zhongwei Thermal Power Co.,Ltd.,Zhongwei 755000,China)
出处
《通信电源技术》
2024年第1期215-217,221,共4页
Telecom Power Technology
关键词
电力继电保护
故障检测
故障维修
power relay protection
fault detection
fault maintenance
