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NAME： 矿用隔爆兼本质安全型真空电磁起动器 QJZ-315、400/1140(660)
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Number of views:
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Product Description
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简介
QJZ-315、400/1140(660)矿用隔爆型真空电磁起动器(以下简称起动器)，主要用于煤矿井下和其他周围介质中含有甲烷等混合气体的煤矿井下。适用于交流50Hz，额定电流至400A、315A，额定电压为660V、1140V的线路中，直接或远距离起动和停止矿用隔爆型三项鼠笼式感应电动机。并具有漏电闭锁、过流保护、断相保护、欠压保护、风电闭锁、程控保护及通讯接口等功能。在停止时还可以进行换向。
主要技术参数
|
额定电压 |
660V |
1140V |
|
控制电动机最大功率范围 |
260kW（315A） |
450kW（315A） |
|
额定频率 |
50Hz |
|
|
额定电流 |
315A、400A |
|
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极限分断能力 |
4500A |
|
|
隔离开关分断能力 |
945A、1200A |
|
|
电寿命 |
3万次 |
|
|
机械寿命 |
100万次 |
|
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