石化企业供电系统中压配电线路中光纤差动保护的应用  

APPLICATION OF FIBER LINE DIFFERENTIAL PROTECTION IN MEDIUM VOLTAGE DISTRIBUTION CIRCUIT OF POWER SYSTEM IN PETROCHEMICAL ENTERPRISES

作　　者：曹益新[1] 

机构地区：[1]中国石化工程建设有限公司,北京100101

出　　处：《石油化工安全环保技术》2014年第3期16-19,8,共4页Petrochemical Safety and Environmental Protection Technology

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.

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 

分 类 号：TM773[电气工程—电力系统及自动化]