摘要
通过分析低厂变保护的发展现状、开关与保护的配置方案、华润电力登封有限公司的低厂变保护的整定计算和西门子F-C真空接触器开关的使用情况,阐明低厂变保护的反时限曲线、变压器过负荷曲线、高压熔断器的安—秒曲线三者之间的配合是合理的,同时也介绍了保护的整定与F-C真空接触器开关配合是否合理的一种方法。并简单介绍高压限流熔断器的选择方法和实际应用注意事项。
This paper presents the cooperation of the inverse time limit curve of LV auxiliary transformer, the overload curve of transformer and the A-S curve of HV fuse based on analysis of the development of LV auxiliary transformer protection, LV auxiliary transformer protection setting in Dengfeng Branch, and the use of Siemens F-C vacuum contactor switch. A method is introduced to check whether the matching of the relaying protection and the F-C vacuum contactor switch is reasonable. How to choose the HV fuse and the instructions in application are also put forword.
出处
《继电器》
CSCD
北大核心
2005年第21期27-31,共5页
Relay
关键词
微机保护
真空接触器开关
安-秒曲线
熔断器
microprocessor-based protection
switch of vacuum contactor
A-S curve
fuse
