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71. 发明专利

ES2040364T3 未知
公开(公告)号：ES2040364T3
公开(公告)日：1993-10-16
申请号：ES88401386
申请日：1988-06-08
申请人： MERLIN GERIN
发明人： COLLEONI, GUIDO , BOUVET, BERNARD , GAILLARD, JACQUES , JACOLIN RICHARD , VOLSY ROBERT , BERNARD, GEORGES
IPC分类号： H01H19/00 , H01H33/12 , H01H9/44 , H01H33/18 , H01H33/65
摘要： A rotary switch with a sealed enclosure in which a rotating knife-blade is housed cooperating with two stationary contacts supported by the internal periphery of the enclosure. A permanent magnet is incorporated in the stationary contacts to magnetically blow the arc roots on a curved migration track towards hidden locations which are not facing the knife-blade. The invention is applicable to a gas-insulated medium voltage switch.

72. 发明专利

PT87840B 未知
公开(公告)号：PT87840B
公开(公告)日：1993-09-30
申请号：PT8784088
申请日：1988-06-24
申请人： MERLIN GERIN
发明人： COLLEONI GUIDO , BOUVET BERNARD , GAILLARD JACQUES , JACOLIN RICHARD , VOLSY ROBERT , BERNARD GEORGES
IPC分类号： H01H19/00 , H01H9/44 , H01H33/12 , H01H33/18 , H01H33/65
摘要： A rotary switch with a sealed enclosure in which a rotating knife-blade is housed cooperating with two stationary contacts supported by the internal periphery of the enclosure. A permanent magnet is incorporated in the stationary contacts to magnetically blow the arc roots on a curved migration track towards hidden locations which are not facing the knife-blade. The invention is applicable to a gas-insulated medium voltage switch.

73. 发明专利

NL187720C 未知
公开(公告)号：NL187720C
公开(公告)日：1991-12-16
申请号：NL7600830
申请日：1976-01-27
申请人： AUTOMATIC SWITCH CO
IPC分类号： H01H3/28 , H01H9/26 , H01H33/42 , H01H33/65 , H01H50/64 , H02J9/06

74. 发明专利

MX160683A 未知
公开(公告)号：MX160683A
公开(公告)日：1990-04-09
申请号：MX875385
申请日：1985-08-22
申请人： ICI PLC
发明人： BRERETON COLIN
IPC分类号： H01H1/20 , H01H1/32 , H01H33/42 , H01H33/65 , H01H73/04
摘要： A contact assembly is provided for current-limiting low-voltage circuit breakers. The contact assembly has a two-armed contact lever swivel-mounted on a central bearing pin whose lever arms are equipped at their ends with contact pieces. The contact lever is equipped with a slot for mounting on the bearing pin whose longitudinal axis extends approximately at a right angle to the longitudinal axis of contact lever. The contact lever has a stop extending at approximately a right angle to its longitudinal axis for a catch swivel-mounted on the bearing pin. The contact forces on both lever arms cannot be influenced by the swivel mount or by the drive mechanism of the contact lever, but are determined exclusively by the biasing springs.

75. 发明专利

IN166009B AUTOMATIC SECTIONALISER FOR THREE PHASE ELECTRICAL SUPPLY 未知
公开(公告)号：IN166009B
公开(公告)日：1990-02-24
申请号：IN86DE1986
申请日：1986-01-30
申请人： BRUSH SWITCHGEAR
发明人： STEWART JOHN STANLEY
IPC分类号： H01H3/30 , H01H33/65 , H02H3/06 , H02H7/26 , H01H83/00
摘要： Fault currents in the phases of a three-phase supply are detected by transformers 28 in respective phase links 14 and are counted by associated circuits 24 when any one of the circuits 24 reaches a predetermined count level, or when there is a fault condition, a low VA trip coil 42 is energized so as to release latches which hold the phase links 14 in their operative positions and thereby cause all three links 14 to drop out together.

76. 发明专利

ZA884375B ROTARY SWITCH WITH CURVED ARC ROOT MIGRATION TRACK 未知
公开(公告)号：ZA884375B
公开(公告)日：1989-02-22
申请号：ZA884375
申请日：1988-06-20
申请人： MERLIN GERIN
发明人： COLLEONI GUIDO , GUIDO COLLEONI , BOUVET BERNARD , BERNARD BOUVET , JACQUES GAILLARD , GAILLARD JACQUES , JACOLIN RICHARD , RICHARD JACOLIN , VOLSY ROBERT , ROBERT VOLSY , BERNARD GEORGES , GEORGES BERNARD
IPC分类号： H01H19/00 , H01H9/44 , H01H33/12 , H01H33/18 , H01H33/65 , H01H
摘要： A rotary switch with a sealed enclosure in which a rotating knife-blade is housed cooperating with two stationary contacts supported by the internal periphery of the enclosure. A permanent magnet is incorporated in the stationary contacts to magnetically blow the arc roots on a curved migration track towards hidden locations which are not facing the knife-blade. The invention is applicable to a gas-insulated medium voltage switch.

77. 发明专利

DE3378866D1 AIR CIRCUIT BREAKER 未知
公开(公告)号：DE3378866D1
公开(公告)日：1989-02-09
申请号：DE3378866
申请日：1983-01-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODERA TOSHIHIKO , EGUCHI KIYOSHI , ISHIKAWA TAKAYOSHI , GENBA YASUSHI , TAMARU SHIGEMI , SATOU SUSUMU
IPC分类号： H01H73/38 , H01H3/30 , H01H33/42 , H01H33/65 , H01H71/10 , H01H71/50 , H01H1/50
摘要： The disclosure describes an air circuit breaker having a bounce preventive device which is provided on a direction changing lever (43) interposed between the link mechanism (47) to drive a contact opening and closing mechanism (69) for closure of the contact (54,55) and this contact opening and closing mechanism, so as to prevent the bouncing phenomenon to occur at the time of the OFF-operation, thereby making it possible to secure accurate circuit breaking action.

78. 发明专利

FR2576141A1 未知
公开(公告)号：FR2576141A1
公开(公告)日：1986-07-18
申请号：FR8600447
申请日：1986-01-14
申请人： SIEMENS AG
发明人： PREUSS BERNHARD , BERNDT KLAUS-GUNTHER
IPC分类号： H01H33/42 , H01H33/53 , H01H33/65 , H01H71/02 , H01H71/10 , H01H73/04 , H01H9/20

79. 发明专利

IT1091942B 未知
公开(公告)号：IT1091942B
公开(公告)日：1985-07-06
申请号：IT4173177
申请日：1977-12-29
申请人： WESTINGHOUSE ELECTRIC CORP
IPC分类号： H01H1/22 , H01H3/30 , H01H33/40 , H01H33/65 , H01H71/50 , H01H73/38 , H01H
摘要： Improvements introduced in a circuit breaker comprising a set of movable contacts, bistable means connected to the set of movable contacts to effect the movement thereof to a position of closed contacts when the bistable means are armed, releasable means to effect, when they are released, the crushing of the bistable means and, thereby, the movement of the set of contacts to a position of open contacts thereof, and a mechanism of operation of the type of stored energy to assemble the bistable means when crushed, characterized in that said mechanism of operation comprises a rotary lava follower structure between an initial position and a mounted position, latching means for engaging the cam follower structure in said mounted position, contact closure spring means connected to the cam follower structure of so that they are loaded by turning the latter from the initial position to the mounted position thereof, said cam follower structure being urged, when disengaged, by the contact closure spring means loaded from the mounted position to said initial position, during which movement the follower structure of cam acts on the bistable means and the arms if they are crushed, and a rotating cam structure which cooperates with the cam follower structure so as to restore the latter from the initial position to said mounted position thereof upon rotation of the cam follower. Cam structure at a predetermined angle, said cam structure and said cam follower structure being supported for rotation about spaced apart axes parallel to each other, and the arrangement being such that the angle of rotation of the cam follower structure between said initial and mounted positions thereof, is less than said predetermined angle of rotation of the structure of the lev to. (Machine-translation by Google Translate, not legally binding)

80. 发明专利

AU1075483A AIR CIRCUIT BREAKER 未知
公开(公告)号：AU1075483A
公开(公告)日：1983-08-04
申请号：AU1075483
申请日：1983-01-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODERA TOSHIHIKO , EGUCHI KIYOSHI , ISHIKAWA TAKAYOSHI , GENBA YUSUSHI , TAMURA SHIGEMI , SATOU SASUMU
IPC分类号： H01H33/40 , H01H3/30 , H01H33/65 , H01H73/38 , H01H5/10 , H01H33/42
摘要： The disclosure describes an air circuit breaker comprising a compression coil (31); a first spring holder (302) to compress the compression coil in the axial direction thereof; and a second spring holder (301) which is subjected to the compression force of the compression coil, the first spring holder (302) being constructed in such a manner that it is formed of a plate material in a rectangular shape, a pair of projected pieces (316, 317) are provided on both sides of the plate material, and a pin (315) is held to pass between the pair of projected pieces in the direction of thickness of the plate so as to be able to support one end of the energy accumulating spring (31) at four points with the pair of projected pieces (316, 317) and the pin (315) in a compressible manner. After compression of said energy accumulating spring by pressure application thereto, its pressure application is released to stretch the energy accumulating spring so as to close a pair of contact points through the first and second spring holders (301, 302).

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