摘要
针对以往石化企业供配电系统中,中压（6～35 kV）短线路主保护常规设置存在的灵敏度不够、保护范围小等缺陷,介绍了线路光纤纵联差动保护的原理、优势,结合实际工程,展示了一种光纤差动继电器的整定方法,提出了定值表.
Aiming at the defects of insufficient sensitivity and small protection range of the main protection routine setting of the medium voltage( 6 ~ 35kV)short lines in the power system of petrochemical enterprises in the past,this paper introduces the principles and advantages of line fiber differential protection. Combining with practical project,the paper displays a setting method for one kind of fiber differential relay and raises a setting value list.
出处
《石油化工安全环保技术》
CAS
2014年第3期16-19,8,共4页
Petrochemical Safety and Environmental Protection Technology
关键词
速断保护
线路纵联差动保护
线路光纤差动保护
电流互感器
继电保护
整定
Instantaneous protection
Line vertical differential protection
Line fiber differential protection
Current transformer(CT)
Relay protection setting
