F-C真空接触器在电动机保护中的整定计算  

Setting calculation methods with F-C vacuum contactor in the electric motor protection

作　　者：杨捷[1] 姚娟[1] 唐宇 

机构地区：[1]河南机电高等专科学校,河南新乡453002 [2]许继电气股份有限公司,河南许昌461000

出　　处：《电力系统保护与控制》2009年第16期77-79,83,共4页Power System Protection and Control

基　　金：河南省自然科学基金资助项目(0411015000)~~

摘　　要：F-C真空接触器在1200kW以下电动机保护中得到了越来越多的应用,但是,保护整定和保护配合不当将引起保护的误判,严重影响该设备的可靠性和应用性。该文介绍了F-C真空接触器的特点,保护的整定计算方法,限流熔断器的选择,最后通过F-C真空接触器保护的动作曲线、电动机的过负荷曲线以及熔断器安-秒特性曲线分析了保护的配合方法,该方法实用有效。F-C vacuum contactor has been more and more applied in electric motor protection below 1200 kW. However, the protection setting and the unsuitability of protection will cause misjudgment which will seriously affect the reliability and utility of the equipment. This paper introduces characteristics of the F-C vacuum contactor, method of calculating protection setting, and selection of the limiting current fuse. In virtue of F-C the curve, motor overload curve and fuse currentsecond curve, it analyzes the protection coordinate method which is effective.

关 键 词：真空接触器 保护整定 电动机 

分 类 号：TM307[电气工程—电机]