摘要
基于交流电与直流电本身的差异,直流系统的保护与交流系统的保护要求也不尽相同。随着低压直流配电系统试验性应用的不断扩大,对于直流配电系统保护的研究也不断深入。依据IEC标准体系对直流配电系统的要求,简要分析用户侧低压直流配电系统的过流保护要素。
Due to the initial difference between alternating current(ac) and direct current(dc),the protection requirement for dc system is different from that of ac system.With more application exploring in LVDC,this paper discussed some key points of over-current protection for low voltage dc power(LVDC) distribution system based on IEC standards.
引文
[1] 中低压直流配电电压导则:GB/T 35727—2017[S].
[2] Circuit-breakers for over current protection for household and similar installations- Part 3:Circuit-breakers for d.c.operation:IEC 60898-3:2015[S].
[3] Low-voltage electrical installations-Part 1:Fundamental principles,assessment of general characteristics,Definitions:IEC 60364-1:2005[S].
[4] LVDC electricity for the 21st century:IEC TR-LVDC[S].