【摘要】 从对变电站二次电压回路的要求出发,阐述了双母线系统中二次电压回路的作用、组成和切换过程。分析了二次电压回路的三个切换过程中故障发生的原因。指出了在二次回路设计和运行操作过程中应当注意的问题,提出了相应的防范措施,保证了电力系统继电保护安全稳定运行。更多还原

【Abstract】 From the requirement for substation secondary voltage loop,this paper introduces the function,formulation and switching of secondary voltage loop in double-bus system,analyzes the reasons for the fault taking place in the three switching process of secondary voltage loop,points out the matters needing attention in the design and running of secondary voltage loop,and proposes relevant countermeasures to ensure the safe and stable running of relay protection for electric power system.更多还原