摘要
常规备自投由于没有考虑进线备自投方式下的过负荷联切及三卷变压器中低压侧过负荷判别问题,因而只能实现母联备自投方式下的过负荷联切功能。在常规备自投装置的硬件基础上,通过修改软件逻辑和对硬件做必要的修改,实现了各种备自投方式下的过负荷联切功能,并具体给出了PSP642备自投装置实现备自投动作后过负荷联切的方法。
Conventional automatic standby power device does not take into account overload-cutting at lines standby switch way and the overload discriminant on mid-low side of three-volume transformer, so it could only realize overload-cutting at bus tie circuit breaker standby switch way. On the basis of the existing hardware, by modifying the software logic and making the hardware necessary changes, the overload-cutting functions under each automatic standly switch way are realized, and the implementation method is given by using PSP642.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第5期139-140,共2页
Power System Protection and Control
关键词
备自投
过负荷联切
自动装置
PSP642
automatic standby power devices
overload cutting
automatic device
＂ PSP642
