节点柜在10 kV配电电缆线路不停电作业中的应用

Application of Power-Saving Cabinet in Non-Stop Operation of 10 kV Distribution Cable Line

摘要: 10 kV配电电缆线路离地很近，线路几乎绝缘到底，联络设备进行了“五防”设计，所以通常采用的带电作业技术无法应用。本文介绍一种节点柜设备，其特点是采用单面柜双开关结构，比普通单回路高压开关设备多一条支线回路。将其安装在线路中，其支线作为永久性可控制电源接驳点，可以配合旁路电缆、中压发电车、移动箱变车等设备进行不停电作业。

Abstract: The 10 kV distribution cable line is very close to the ground, and the line is almost insulated to the end. The contact equipment is designed with “five preventions”, so the commonly used live working technology cannot be applied. This article introduces a kind of node cabinet equipment, which is characterized by adopting a single-sided cabinet with double switch structure, and it has one more branch circuit than ordinary single-circuit high-voltage switchgear. Having it installed in the line and its branch line as a permanent controllable power connection point, it can be used with bypass cables, medium voltage generator cars, mobile transformer cars and other equipment for non-stop operation.