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ZN85-40.5户内高压真空断路器使用

2014-1-2 20:39:34点击:
概述
ZN85-40.5(3AV3)户内真空断路器是分司与西安高压电器研究所联合设计并生产的。本产品适用于安身之处电压40.5kV,三相交流50Hz的户内高压设备,可供工矿企业、发电厂及变电站作为分合负荷电流、过载电流、短路电流之用,并适用开频繁操作场合。
型号及含义
使用环境条件
海拔高度:不超过2000米;
环境温度:上限为+40℃,下限为+15℃;
相对湿度:日平均值不大于95%,
     月平均值不大于90%;
地震烈度:不超过8度;
没有火灾爆炸危险,没有剧烈震动及化学腐蚀等严重污秽的场所。
超出上述环境条件时,请用户与制造厂共同协商。
结构特点
断路器采用灭弧室在上,机构在下的整体布置的结构,利于调试。
采用空气与有机材料复合绝缘结构,设计紧凑,重量轻。
可配美国Cutler-Hammer公司的真空灭弧室和国产ZMD真空灭弧室,两种灭弧室采用纵磁场灭弧,低截流,非对称开断性能好。
简单的弹簧操作机构,10000次操作免维护。
主要技术参数
项目 单位 数据
额定电压 kV 40.5
1min工频耐压(有效值) kV 95
雷电冲击耐压(峰值) kV 185
额定频率 Hz 50
额定电流 A 1250 1600 2000
额定短时耐受电流 kA 25 31.5
额定峰值耐受电流 kA 63 80
额定短路持续时间 s 4
额定短路开断电流 kA 25 31.5
额定短路关合电流 kA 63 80
额定操作顺序   O-0.3s-CO-180s-CO
开断时间 ms <80
额定短路开断电流开断次数 20
单个电容器组开断电流 A 630
背靠背电容器组开断电流 A 400
额定操作电压 V -110/~110 -220/~220
机械寿命 10000
外形及安装尺寸