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62. 发明专利

JPH065189A CIRCUIT BREAKER 失效
公开(公告)号：JPH065189A
公开(公告)日：1994-01-14
申请号：JP16443592
申请日：1992-06-23
申请人： TOSHIBA CORP
发明人： SAKANO MAKOTO , OZAKI MASA , OMOTO KAZUHIRO
IPC分类号： H01H71/28 , H01H83/06 , H01H83/20
摘要： PURPOSE:To make a device compact, and reduce the cost by performing the tripping operation due to the external voltage or the undervoltage without providing an exclusive tripping device. CONSTITUTION:A tripping device 10 is provided with an over current tripping coil 10a and an auxiliary tripping coil 10b. An over current judging circuit 9 judges the over current of a main circuit 5 on the basis of the detected currant of converters 6a, 6b to turn on a thyristor 11, and electrifies the tripping coil 10a. The auxiliary tripping coil 10b operates the tripping device 10 in response to the voltage fed from external input terminals 13a, 13b. Tripping is performed by electrifying the over current tripping coil 10a of the tripping device 10, or tripping is performed in response to the input voltage from the external input terminals 13a, 13b, and cut-off of the main circuit 5 is performed by one tripping device 10 to save the space and manufacture at a low cost.

63. 发明专利

JPH05120978A MOLDED-CASE CIRCUIT-BREAKER 失效
公开(公告)号：JPH05120978A
公开(公告)日：1993-05-18
申请号：JP27812691
申请日：1991-10-25
申请人： FUJI ELECTRIC CO LTD
发明人： UCHIDA NAOJI , TOSAKA HIROAKI , NOMURA KOJI
IPC分类号： H01H71/28 , H01H73/40
摘要： PURPOSE:To provide the assembling structure of a molded-case circuit-breaker, in which the arrangement of a main tripping coil and an auxiliary tripping coil are laid out well in a case to make the circuit breaker compact. CONSTITUTION:A plunger-type main tripping coil 11 and a plunger-type auxiliary tripping coil 12 (undervoltage tripping coil, voltage tripping coil or the like) assembled in a case 1 as a tripping device of a circuit breaker are arranged longitudinally so that each plunger of the main tripping coil 11 and the auxiliary tripping coil 12 are arranged in series against a cross bar 8 of a contact shoe switching mechanism, and they are arranged concentrically at a central side of the case opposite to a printed wiring board 10. The tripping operation by the auxiliary tripping coil 12 is performed sequentially through a plunger of the main tripping coil 11.

64. 发明专利

JPS5857241A COMPOSITE DEVICE FOR LEAKAGE BREAKER AND WIRING BREAKER 失效
公开(公告)号：JPS5857241A
公开(公告)日：1983-04-05
申请号：JP15578282
申请日：1982-09-07
申请人： SIEMENS AG
发明人： FURITSUTSU MENTERU
IPC分类号： H01H73/36 , H01H71/28 , H01H83/22

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