高压综合继电保护装置─—断相保护电路设计与实现

MULTIPLE RELAY PROTECTION WITH HIGH VOLTAGE ───THE DESIGN OF PHASE CUTOUT PROTECTIVE CIRCUIT

本文针对目前国内与矿用隔爆型高压配电装置配套使用的大多数高压综合继电保护装置没有设置专门的断相保护功能这一缺陷，提出了一种断相保护电路的设计方案并给出了原理电路。该电路在国内一种新型的高压综合继电保护装置中的应用及井下现场运行的结果表明：该电路设计合理、结构简单、性能稳定可靠。图１，参４。

Researching on the traditional multiple relay pretection with high voltage，a kind of complete sets for electricity distribution with high voltage in mining explosion insu-lation，we find out that most of these equipments lack a specially arranged phase cutoutfunction in our country.In this paper we offer the design of a phase cutout circuit alongwith its principle diagram.The application of this circuit in a newly established multiple re-lay protection and the results have proved the truth that the presented circuit iscorrectly designed with the advantage of simplicity in its structure，of stability and reliabili-ty in its function.1fig. 4refs.