变电所二次回路设计中的注意事项

Attentions on design of secondary circuits in substations

变电所的二次回路是变电所二次系统的重要组成部分,各种继电保护、自动控制装置离开二次回路就不能正常工作。该文根据现场工作的经历,总结了几个影响二次设备安全运行典型事例的教训。从回路设计的角度分析了二次回路设计对二次设备安全运行的影响,提出了一些优化二次回路设计、提高二次回路安全性的具体措施。

Secondary circuits are indispensable in substations. No relays and automatic devices can work properly without secondary circuits. This paper summarizes some typical examples of affecting regular service of relays by defective design of secondary circuits. This paper also presents some nptimizing measures to improve security of secondary circuits.