110kV电网故障问题分析及继电保护整定计算研究

Study on Fault Analysis of 110kV Power Network and Setting Calculation of Relay Protection

社会对电力能源的需求量逐渐上升,使得电网规模不断扩大。继电保护整定计算软件是保证现代电力系统运行有效性的关键因素,电力公司推广应用继电保护整定计算软件可以减少人工成本,提高电力工作的效率。以110kV电网为例,深入分析故障电流的计算过程,描述短路故障的计算方法,重点阐述继电保护整定计算的任务、方式选择以及整定配合原则等,以期为同行业工作人员提供帮助。

With the increasing demand for electric energy in modern society,the scale of power grid has been significantly expanded compared to the past.The relay protection setting calculation software is the key factor to ensure the operation effectiveness of modern power system.The popularization and application of relay protection setting calculation software by power companies can reduce the labor cost and improve the efficiency of power work.In this paper,110kV power network as an example on its fault current calculation process for in-depth analysis,a brief description of the short circuit fault calculation method,focusing on the relay protection setting calculation task,mode selection,setting principles and other content,hoping to provide some help to the industry staff.