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1000
NAME： 矿用隔爆兼本质安全型永磁真空馈电开关 KJZ-1000（800、630、500、400、200）/1140(660)Y
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Number of views:
1000
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Product Description
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简介
矿用隔爆型永磁真空馈电开关(以下简称开关)，采用永磁机构真空断路器，配用双稳态永磁操动机构，利用一种双稳态的磁路系统，用两个激励线圈驱动动铁芯到相应的极限位置，激发其中一个激磁线圈使之产生大于剩余保持力的驱动力，即可使之机构的动铁芯动作，当外部电源断电时，断路器自动分闸，永磁机构省去了传统机构易损的储能、锁扣等机械装置，简化了结构，零部件数量较传统机构减少了80%以上，从而大大提高了机构的可靠性和寿命，同时由于采用了大容量电容(内置)作为操作电源，也避免了传统机构对大容量专用电源的依靠，电源电压器功率很小，从而也达到节能的目的。
主要技术参数
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额定工作电压AC |
1140V、660V |
||
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工频耐压 |
4200V/1min |
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|
额定频率 |
50Hz |
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额定电流 |
1000A、800A |
630A、500A |
400A、200A |
|
极限分断能力 |
30000A |
15000A |
7500A |
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