概述Description
   本系列电流互感器为环氧树脂浇注封闭产品，适用于额定频率50Hz或60Hz ，额定电压35kV及以下户内装置的电力系统中， 作电能计量、电流测量和继电保护用。本产品符合IEC185及GB1208-1997《电流互感器》标准。
   The series current transformer of the type LZZB7 -35W2 and LZZB7 -35A are casting resins and fully enclosed. They are use for metering electric energy and current, relay protection in the electrical system up to rated frequency 50Hz or 60Hz and rated voltage 35kV. The transformers can be executed according to the standards IEC 185 and GB1208-1997.

型号含义 Type designation

结构简介Construction
本型电流互感器为全封闭支柱式结构，耐污染及潮湿，尤其适用于表面凝露环境、热带及高原地区。产晶品底部有四个直径17.5孔，供安装用。
   This current transformer is fully enclosed and posts type. It has a good ability of antipollution and moisture-proof especially being used in damp tropics and highland, The fixing board with four Φ17.5 holes under the bottom of the product make it quite easily for fixing.

技术参数Technical data
1 额定绝缘水平: 40.5/95/185kV;
2.额定二次电流: 5A, 1A;
3.额定一次电流、准确级、额定输出及热稳定电流见表;
4.产品局部放电符合GB1208-1997 《电流互感器》标准要求;
5.保护级准确系数与二次负荷关系曲线见图。
1.Rated insulation level:40.5/95/185kV;
2.Rated secondary current:5A, 1 A;
3.Rated primary current, accuracy class , rated output, dynamic and thermal current see form
4. The conditions of the partial discharge test according to GB1208-1997《Current transformer》 will be fulfilled without
exception;
5. The relation curve between protection class accuracy limit factor and secondary output see fig.

外形尺寸Overall Dimension