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NAME： QJGZ—630/10(6) 矿用隔爆兼本质安全型高压真空电磁起动器
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Product Description
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用途
该产品主要适用于煤矿瓦斯气体环境下，对额定电压10(6)kV、频率50Hz、额定电流至630A以下的三相交流中性点不直接接地的供电系统中频繁起动的高压电动机和用电设备进行控制、保护和测量。
主要特点
1、该产品总体结构分隔爆外壳和机芯小车两大部分，结构合理，维修方便。
2、使用单柄式快开门结构(全国独一无二的)，使门的开关操作更加轻便、灵活。
3、具有国内最先进的微电脑综合保护器(外整定汉字显示)，具有过载、短路、功率方向型漏电保护、绝缘监视、低电压、高电压保护，并有故障自检和查询功能。
4、产品分为a、b、c三种结构形式，以满足受电、馈电、联台、直接控制等不同使用方式。
5、开关具有电动合分闸功能。
6、远距离控制信号为本质安全信号
7、具备通讯接口，可以与通信站联网，实现远程监控功能。
主要参数
|
额定电压 10（6）kV |
额定频率 50Hz |
|
|
本安回路最大开路电压5.5V |
本安回路最大短路电流15mA |
|
|
电气寿命25×104（AC3 ） |
机械寿命 10×105次 |
|
|
接触器额定电流 |
400A |
630A |
|
配用电流互感器 |
50/5、100/5、150/5、 |
500/5、630/5 |
|
额定开断能力（25次） |
3200A |
5000A |
|
额定接通能力（100次） |
4000A |
6300A |
|
极限分断能力（3次） |
4500A |
6300A |
|
热稳定电流（4s） |
4000A |
6300A |
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