摘要
根据规程,结合运行实际对母联(分段)开关充电保护的配置和使用进行了详细的分析,单独配置的充电保护和包含在母差中的充电保护在配置上各有优缺点,在实际运用中,应根据使用目的不同,权衡利弊加以选择。继电保护本身不是万能的,不可能包罗万象、适应各种系统运行要求。在采用某一个方案的过程中,一方面要看到这个方案带来的好处,另一方面也要同时承受该方案可能产生的任何后果。
The key of transformer protection is to distinguish magnetic inrush from fault current. Effective simulations for magnetic inrush and fault current of transformer are the foundation of right division. In this paper, based on the study on the model of electrical transformer in EMTDC （Electro-Magnetic Transient in DC System）, the simulations for magnetic inrush and fault current of three-phase transformer are done. And analysis are given to the simulation, The results show that EMTDC can effectively simulate the magnetic inrush and fault current of transformers under different conditions.
出处
《继电器》
CSCD
北大核心
2007年第3期69-72,共4页
Relay
关键词
母联开关
充电保护
保护配置
busbar connecting breaker
charge protection
protection＇s configuration
