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1. 发明专利

DE69420940D1 未知
公开(公告)号：DE69420940D1
公开(公告)日：1999-11-04
申请号：DE69420940
申请日：1994-12-14
申请人： HITACHI LTD
发明人： HOSODA MINORU , YOSHIDA TORU , OUCHI SHIGETOSHI , HONDA HARUO , FUJITA YASUNOBU , ICHIKAWA FUMIHISA , YAMADA KOUYA
IPC分类号： B60M3/02 , H02H3/02 , H02H7/26 , H02H7/30 , B60M3/00
摘要： A dc power supply circuit connects a plurality of first dc circuit breakers 3, 4 to a semi-conductor converter 1, returning to the semi-conductor converter 1 through a dc driving part such as an electric railcar 6 connected to each dc circuit breaker 3, 4. A second dc circuit breaker 9 of larger capacity than the first dc circuit breakers 3, 4 is provided in a return circuit 8 and opened when a short circuit current is detected. Current decreasing means 14 opens the second dc circuit breaker 9 to decrease the short circuit current which flows, for example, through a series-circuit of a resistor R and a reactor L.

2. 发明专利

DE69420940T2 未知
公开(公告)号：DE69420940T2
公开(公告)日：2000-05-31
申请号：DE69420940
申请日：1994-12-14
申请人： HITACHI LTD
发明人： HOSODA MINORU , YOSHIDA TORU , OUCHI SHIGETOSHI , HONDA HARUO , FUJITA YASUNOBU , ICHIKAWA FUMIHISA , YAMADA KOUYA
IPC分类号： B60M3/02 , H02H3/02 , H02H7/26 , H02H7/30 , B60M3/00
摘要： A dc power supply circuit connects a plurality of first dc circuit breakers 3, 4 to a semi-conductor converter 1, returning to the semi-conductor converter 1 through a dc driving part such as an electric railcar 6 connected to each dc circuit breaker 3, 4. A second dc circuit breaker 9 of larger capacity than the first dc circuit breakers 3, 4 is provided in a return circuit 8 and opened when a short circuit current is detected. Current decreasing means 14 opens the second dc circuit breaker 9 to decrease the short circuit current which flows, for example, through a series-circuit of a resistor R and a reactor L.

3. 发明专利

DE69302716D1 未知
公开(公告)号：DE69302716D1
公开(公告)日：1996-06-27
申请号：DE69302716
申请日：1993-01-28
申请人： HITACHI LTD
发明人： OUCHI SHIGETOSHI , HONDA HARUO , YOSHIDA TORU , KUGOH YUKIO , ICHIKAWA FUMIHISA , KANNO TUTOMU , ICHINOSE TAKASHI , TSUDA HIDEAKI
IPC分类号： H01H9/30 , H01H9/42 , H01H33/59 , H01H33/66
摘要： A commutating type DC circuit breaker arrangement comprising : a vacuum circuit breaker (7) having a movable electrode and stationary electrode; a series circuit (6) of a capacitor (8), a saturation reactor (9) and a commutating switch (10) which is connected in parallel with the vacuum circuit breaker; and means (21) for detecting a predetermined electrode open position at which a sufficient insulating distance between the movable electrode and the stationary electrode is maintained via movement of a predetermined position on an actuating rod for the movable electrode and for closing the commutating switch in response to the detection of the predetermined electrode open position.

4. 发明专利

DE69302716T2 未知
公开(公告)号：DE69302716T2
公开(公告)日：1997-01-02
申请号：DE69302716
申请日：1993-01-28
申请人： HITACHI LTD
发明人： OUCHI SHIGETOSHI , HONDA HARUO , YOSHIDA TORU , KUGOH YUKIO , ICHIKAWA FUMIHISA , KANNO TUTOMU , ICHINOSE TAKASHI , TSUDA HIDEAKI
IPC分类号： H01H9/30 , H01H9/42 , H01H33/59 , H01H33/66
摘要： A commutating type DC circuit breaker arrangement comprising : a vacuum circuit breaker (7) having a movable electrode and stationary electrode; a series circuit (6) of a capacitor (8), a saturation reactor (9) and a commutating switch (10) which is connected in parallel with the vacuum circuit breaker; and means (21) for detecting a predetermined electrode open position at which a sufficient insulating distance between the movable electrode and the stationary electrode is maintained via movement of a predetermined position on an actuating rod for the movable electrode and for closing the commutating switch in response to the detection of the predetermined electrode open position.

5. 发明专利

DE69019442T2 未知
公开(公告)号：DE69019442T2
公开(公告)日：1996-01-25
申请号：DE69019442
申请日：1990-09-03
申请人： HITACHI LTD
发明人： OUCHI SHIGETOSHI , SHIROUZU TATSUJI , ODE SHINICHI , ICHINOSE TAKASI , KANNO TUTOMU
IPC分类号： B60M3/06 , H01H33/59 , H02J1/00
摘要： A DC power supply circuit arrangement for supplying DC power from a power source (20) through a common conductor (1) to a load (30, 32), comprises a plurality of switches (10, 20) connected between the power source (20) and the common conductor (1) and/or between the common conductor (1) and the load (30, 32), each of the switches having one terminal connected to the power or the load and the other terminal connected to the common conductor, an energy absorber (6) having two terminals, a first diode (12, 15) connected between the one terminal of each of the plurality of switches and one of the two terminals of the energy absorber in a polarity so as to allow a current to flow from the one terminal of the switch to the one terminal of the energy absorber, a second diode (13, 16) connected between the one terminal of each of the plurality of switches and the other terminal of the energy absorber in a polarity so as to allow a current to flow from the other terminal of the energy absorber to the one terminal of the switch, and a circuit (14) connecting the other terminal of the energy absorber to the common conductor.

6. 发明专利

DE69019442D1 未知
公开(公告)号：DE69019442D1
公开(公告)日：1995-06-22
申请号：DE69019442
申请日：1990-09-03
申请人： HITACHI LTD
发明人： OUCHI SHIGETOSHI , SHIROUZU TATSUJI , ODE SHINICHI , ICHINOSE TAKASI , KANNO TUTOMU
IPC分类号： B60M3/06 , H01H33/59 , H02J1/00
摘要： A DC power supply circuit arrangement for supplying DC power from a power source (20) through a common conductor (1) to a load (30, 32), comprises a plurality of switches (10, 20) connected between the power source (20) and the common conductor (1) and/or between the common conductor (1) and the load (30, 32), each of the switches having one terminal connected to the power or the load and the other terminal connected to the common conductor, an energy absorber (6) having two terminals, a first diode (12, 15) connected between the one terminal of each of the plurality of switches and one of the two terminals of the energy absorber in a polarity so as to allow a current to flow from the one terminal of the switch to the one terminal of the energy absorber, a second diode (13, 16) connected between the one terminal of each of the plurality of switches and the other terminal of the energy absorber in a polarity so as to allow a current to flow from the other terminal of the energy absorber to the one terminal of the switch, and a circuit (14) connecting the other terminal of the energy absorber to the common conductor.

7. 发明专利

DE4304863A1 Commutating constant voltage circuit breaker - blocks flow of commutator current from commutator circuit to load in unloaded open operating condition 未知
公开(公告)号：DE4304863A1
公开(公告)日：1993-08-26
申请号：DE4304863
申请日：1993-02-17
申请人： HITACHI LTD
发明人： OHDE SHINICHI , OUCHI SHIGETOSHI , HONDA HARUO , YOSHIDA TORU , KANNO TUTOMU , KUGOH YUKIO
IPC分类号： H01H33/59
摘要： The circuit breaker has a commutator circuit (2, 3, 4) connected in parallel with a main contact (1). The latter (1) is connected between a constant voltage supply (11) and a load (12). The commutator circuit (2, 3, 4) has a capacitor (2), an inductor (3) and a switch (4) connected in series and a power absorption device (5) connected in parallel. The circuit breaker (7) prevents a commutator current flowing from the commutator circuit (2, 3, 4) to the load (5) in open operation. The circuit breaker is connected between the load (5) and a terminal node (P) between the main contact (1) and the commutator circuit (2, 3, 4). This is opened at the same time as the main contact (1) or before the commutator switch (4) closes. ADVANTAGE - Protects load in open operation more reliably.

8. 发明专利

DE3910010A1 Vacuum disconnecting switch 未知
公开(公告)号：DE3910010A1
公开(公告)日：1989-10-19
申请号：DE3910010
申请日：1989-03-28
申请人： HITACHI LTD
发明人： OUCHI SHIGETOSHI
IPC分类号： H01H33/66 , H01H33/28 , H01H33/59 , H01H33/664
摘要： The fixed electrode and the movable electrode (6, 7) of a vacuum disconnecting switch are arranged in a vacuum vessel (3) and are connected to a fixed and a movable bar (8, 9), respectively which extend outwards out of the vacuum vessel (3). In the region of the fixed electrode (6), the vacuum vessel (3) is externally surrounded by an electromagnetic repulsion winding (17) and a short-circuiting ring (16) which is coupled to the movable bar (9). An electromagnetic repulsion force produced between the short-circuiting ring (16) and the repulsion winding (17) is used for driving the movable bar (9) in such a way that the electrodes (6, 7) are disconnected. The magnetic flux generated in this case in the short-circuiting ring (16) produces a magnetic field which is parallel to the arc and opposes movement of the arc away from the electrodes (6, 7).

9. 发明专利

JP2008166085A Circuit breaker and its opening and closing method 有权
标题翻译：断路器及其开关闭合方法
公开(公告)号：JP2008166085A
公开(公告)日：2008-07-17
申请号：JP2006353644
申请日：2006-12-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MORITA AYUMI , HOSODA MINORU , MATSUDA YOSHIHIKO , SUZUKI SANETOSHI , MIYASHITA KEIICHI , OUCHI SHIGETOSHI , SAITO MASAAKI , YANO AKISHI
IPC分类号： H01H33/66 , H01H9/54 , H01H33/38
CPC分类号： H01H33/6662 , H01H33/596
摘要： PROBLEM TO BE SOLVED: To provide a reliable circuit breaker which avoids repelling of a movable electrode side axis that is caused in the middle of cutting-off of a current by an electromagnetic repelling mechanism.
SOLUTION: A circuit breaker 5 includes a first coil (vacuum valve) 51, and a breaking means which drives the operation axis of the first coil 51 in the breaking direction by electromagnetic repelling action. It includes an electromagnet 301 which maintains the first coil 51 in a closed state by the attracting force of a permanent magnet 306. An electromagnetic repelling coil 170 and a second coil 305b of the electromagnet 301 are simultaneously excited when breaking operation is caused by electromagnetic repelling action.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种可靠的断路器，其避免在由电磁排斥机构切断电流的中间期间产生的可动电极侧轴的排斥。解决方案：断路器5包括第一线圈（真空阀）51和通过电磁排斥作用驱动第一线圈51在断开方向的操作轴线的断开装置。其包括电磁体301，其通过永磁体306的吸引力将第一线圈51保持在闭合状态。当电磁驱动引起断开操作时，同时激励电磁体301的电磁排斥线圈170和第二线圈305b 行动。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2004087178A Direct current load switch, direct current feeder circuit for electric rail way and switching method of the same 审中-公开
公开(公告)号：JP2004087178A
公开(公告)日：2004-03-18
申请号：JP2002243407
申请日：2002-08-23
申请人： East Japan Railway Co , Hitachi Ltd , 東日本旅客鉄道株式会社 , 株式会社日立製作所
发明人： OUCHI SHIGETOSHI , WADA TSUYOTOSHI , SHIINA TAKASHI , KASHIWAZAKI SHIGENORI , KIKUMOTO HIROTAKE , HIROTA NOBUYUKI , YAMAMOTO HIROSHI
IPC分类号： H01H33/59 , B60M3/04
摘要： PROBLEM TO BE SOLVED: To solve the problem that all direct current feeders of a transformer substation break down when an accident is generated thereto.
SOLUTION: The direct current load switch 2A comprising a direct current circuit breaker 3 in charge of rated current, and a direct current electromagnetic contactor 4 in charge of arc current A generated when switching is connected to the direct current feeder 26. A power supply is cut off only at a section of the direct current feeder 26 where an accident is generated by the direct current load switch 2A, and the life of the direct current circuit breaker 3 is prolonged.
COPYRIGHT: (C)2004,JPO

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