产品作用 Product function

消弧及过电压保护装置（简称 KWX），是为了迅速消除中性点非直接接地系统弧光接地给电器设备带来的危害而研制的产品。装置主要由三相组合式过电压保护器 DCB、可分相控制的高压真空接触器 JZ、微机控制器、高压限流熔断器组件 FU 及带有辅助二次绕组的电压互感器 PT 等组成。 

Arc suppression and overvoltage protection device (KWX for short) is a product developed to quickly eliminate the harm to electrical equipment caused by arc grounding of neutral point indirect grounding system. The device mainly consists of a three-phase combined overvoltage protector DCB, a high-voltage vacuum contactor JZ which can be controlled by phase separation, a microcomputer controller, a high-voltage current-limiting fuse assembly FU, a voltage transformer PT with an auxiliary secondary winding and the like.