*概述

      LXK—Φ80～Φ240系列零序电流互感器适用于10kV及以下交流50Hz线路中作电力系统以及高压三相交电流发电机、电动机的零序过电流保护用，只适合用于户内。输电电缆外径不大于Φ80～Φ240。

    零序电流互感器为电缆式，故只考核二次线圈的绝缘性能。二次线圈对地能承受3kV工频耐压。

     The zero current transformers ofLXK—Φ80～Φ240 seriesis used for overdriven current protection in the electric non-useful-ground neutral system of rated frequency 50Hz or rated voltage 10kV and three phase AC dynamotor/electromotor. It is only used indoor. Electricity transmitting cable outside diameter should beΦ80～Φ240.

     This zero current transformer is cable type, so we only assess the winding insulation perfoemance. The secondary winding is able to withstand the power frequency test voltage of 3 kV to ground.

*结构简介

    本型互感器分为两半，用树脂浇注成半圆形，然后用夹紧连接。安装时可将互感器分为两半，然后合并为一体，安装极为方便。

     The zero current transformers ofLXK—Φ80～Φ240 series are casting into two half circles. In installation, the transformer can be clipped together.

*技术参数

     1、额定电流比、准确级、额定输出见表1；(Rated current ratio, accuracy class, rated output see form 1)

     2、与继电器配套使用时，本型互感器一次零序电流满足表2的要求；(when used with relays, this series of transformers should satisfy the requirements of form 2)

表1

    表2