用于弧光保护装置的检测系统

中低压母线发生弧光短路故障时,弧光保护系统可以在电弧光燃烧危害扩大前切断故障,确保操作人员安全,将故障损失降至最低,已广泛应用于电力系统和厂矿企业等。但日常维护时,缺乏专业的工具对弧光传感器和弧光保护装置进行检测,参照其它保护装置的检验方法无法判断系统运行是否正常。本文提出的用于弧光保护装置的检测系统,包括光源、控制单元以及电流发生器,可以实现对弧光传感器精度、弧光保护动作时间和弧光保护电流精度进行检测,确保发生弧光短路故障时,弧光保护系统可以快速准确的切除故障。

When the arc short-circuit fault occurs in the medium and low voltage bus, the arc protection system can cut offthe fault before the explosion of the arc combustion, to ensure the safety of the operator, to minimize the failure.It has been widely used in power system and industrial enterprise.But in daily maintenance, operator lacks professional tools to test the arc sensors and arc protection device, with reference to other protection device test method cannot determine whether the system is operation normally.In this paper, the detection system for the arc protection device, including the light source, the control unit and the current generator, can achieve the arc sensor accuracy test, arc protection action time test and arc protection current accuracy test, to ensure that when the arc short-circuit fault occurs, the arc protection system can quickly and accurately cut offthe fault.