![YW-CTB甉|互感器过?sh)压保护? src=]()
一.产品概述
YW-CTB保护器主要用于各U?/span>CT二次侧的异常q电(sh)压保护。保护器接于二次l组两端Q正常运行时漏电(sh)极小Q成高阻状态。当发生异常q电(sh)压时Q保护器q速动作而短路，面板上显C故障的部位Qƈ有无源信可出。当故障排除后，?sh)\恢复原状后，又重新投入正常运行状态?/span>SH-CTB保护器应用于CT二次侧的差动l组、测量绕l、母U保护绕l、备用绕l等?/span>
?/span>.主要特点
?/span> 正常工作Ӟ入保护器的甉|不超q?/span>0.1mA。不影响CT正常工作
?/span> ?/span>CT1?/span>COM两端?sh)压?/span>150V?/span>SH-CTB两端自动短\保护
?/span> l电(sh)器的接点定w大于5A。所以故障时Q能?/span>CT二次侧可靠短?/span>
?/span> l电(sh)器接点具有保持功能，按压“复位”按钮Q才能解除保?/span>
?/span> 若是在停늊态下解除了故障，上电(sh)后按复位键方可l正常工?/span>
?/span> 装置提供了一路?sh)器触点输?/span>,当Q意一?/span>CT开路时,触点自动闭合Q可接各U声光报警器或提供给l合保护装置使信息远传。直到故障排除后Q不短\保护时触Ҏ(gu)断开
?/span>.技术指?/span>
?/span> 供电(sh)甉|Q?/span>AC 220V±10%
?/span> 正常漏电(sh)：(x)≤0.1Ma
?/span> 输入CT端电(sh)压达?/span>150V±10%实施短\保护
?/span> 使用?/span>CT规格Q二ơ侧甉|额定gؓ(f)5A
?/span> 导通时?/span>TSQ?/span>50ms≤Ts≤250ms
?/span> 遥信l电(sh)器接点容量：(x)AC 250V/5A
?/span> 保护l电(sh)器接点容量：(x)AC 250V/5A
?/span> 保护甉|Q?/span>≥5A
?/span> 工作环境Q温度：(x)-10?/span>?/span>+70?/span> 湿度Q?/span> ≤95Q?/span>RH
?/span> 复位方式Q手动按?/span>“复位”按钮Q上?sh)自?/span>“复位”
?/span> 抗震性能Q?/span>10?/span>50?/span>10Hz 2g 3min
?/span> 抗干扎ͼ(x)4.4KV/M
?/span> 耐压Q?/span>2KV ACQ漏甉|0.5mAQ?/span>1min
?/span> 可靠安全性：(x)W合IEC834-1要求
?/span> 外Ş寸Q?/span>1~3l组55×75×120Q?/span>mmQ 4~12l组110×75×120Q?/span>mmQ?/span>
?/span> 安装方式Q导轨式安装Q?/span>35mmQ、螺栓固定式安装
