发明授权
- 专利标题： Circuit interrupter
- 专利标题（中）： 断路器
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申请号： US506191申请日： 1974-09-13
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公开(公告)号： US3973233A公开(公告)日： 1976-08-03
- 发明人: Toshio Miyamoto , Teijiro Mori , Kiyoshi Matsuura , Bungo Hara
- 申请人： Toshio Miyamoto , Teijiro Mori , Kiyoshi Matsuura , Bungo Hara
- 申请人地址： JA Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JA Tokyo
- 主分类号： H01H71/12
- IPC分类号： H01H71/12 ; H01H71/24 ; H01H71/28 ; H02H7/22 ; H01H87/00
摘要：
A circuit interrupter has a pair of contacts, a self-restoring type current limiting element and a first electromagnetic trip device serially interconnected. The current limiting element is connected across a parallel connected resistor and a second electromagnetic trip device. Both trip devices have a common magnetic circuit including a single stationary core and a single movable iron piece. The first trip device responds to a shortcircuiting current flowing through it to open the contacts but the second trip device is operative to open the contacts only after the current limiting element has performed the operation of limiting a shortcircuiting current.
公开/授权文献
- US5081438A Thermistor and its preparation 公开/授权日：1992-01-14
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