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1. 发明专利

JPH10321091A DIRECT CURRENT DISCONNECTING DEVICE 失效
公开(公告)号：JPH10321091A
公开(公告)日：1998-12-04
申请号：JP12951897
申请日：1997-05-20
申请人： HITACHI LTD , KANSAI ELECTRIC POWER CO , SHIKOKU ELEC POWER , ELECTRIC POWER DEV CO
发明人： TOKUYAMA SHUNJI , ENDO FUMIMASA , NATSUI KENICHI , SHINOHARA RYOICHI , YAMAGIWA TOKIO , YOMO MANABU , NAKAKOSHI YOSHIHIKO , HATANO MASAYUKI
IPC分类号： H01H33/59
摘要： PROBLEM TO BE SOLVED: To provide a direct current disconnecting device, enabling electrically sure separation. SOLUTION: A circuit configuration is made such that two interrupting parts D1, D2 opened in order by one and same manipulator are connected in series, one interrupting part opened first is provided with a capacitor C in parallel, and the remaining one interrupting part is provided without a parallel circuit element. Further, another circuit configuration is made such that three interrupting parts D1, D2, D3 opened in order by one and same manipulator are connected in series, that two interrupting parts there among are each provided with a resistance R or a capacitor C in parallel, and the remaining interrupting part is provided without a parallel circuit element.

2. 发明专利

JPS6481185A VACUUM TRIGGER GAP 失效
公开(公告)号：JPS6481185A
公开(公告)日：1989-03-27
申请号：JP23718487
申请日：1987-09-24
申请人： HITACHI LTD
发明人： SUZUKI KOJI , ARITA HIROSHI , TOKUYAMA SHUNJI , KUROSAWA YUKIO
IPC分类号： H01H33/66 , H01J47/00 , H01T2/00 , H05G1/56 , H05G2/00
摘要： PURPOSE:To improve time delay in trigger discharge in vacuum by providing irradiation port at one part of a vacuum vessel as well as drawing out of the vacuum vessel while sealing an optical fiber therein, then irradiating at least one of paired electrodes with ultraviolet light from an ultraviolet light generator outside the vacuum vessel. CONSTITUTION:Voltage is applied between opposing electrodes 2, 3 from the outside, while the surface of the electrode 3 is irradiated with ultraviolet light by an ultraviolet irradiator 14 through a optical fiber 13, whereby secondary electrons occurs actively to impinge on the electrode 2, generating ions of such as metal vapor between the electrodes 2, 3. When a pulse source 11 is started in this state by means of an outside signal, creaping discharge occurs between a third electrode 6 and the electrode 2 through an insulator 5, whereby the opposing electrodes perform discharge according to the ions generated between the electrodes. In this case, since irradiation of ultraviolet light is carried out first to generated a lot of ions, effect on the electrode is moderated, thereby sharp improvement in the time delay in discharge is attained.

3. 发明专利

JPS648828A OPERATING METHOD FOR DC TRANSMISSION SYSTEM 失效
公开(公告)号：JPS648828A
公开(公告)日：1989-01-12
申请号：JP16235487
申请日：1987-07-01
申请人： HITACHI LTD
发明人： KONISHI HIROO , TOKUYAMA SHUNJI , YOSHIOKA YOSHIO
IPC分类号： H02J3/36 , H02H7/26 , H02J1/00
摘要： PURPOSE:To contrive direct current breakers to be done without increasing the capacities, by locking the interrupting action of the direct current breakers, when an accident is generated on a transmission line in a state that the only one transmission line among a plurality of transmission lines is operated. CONSTITUTION:The branch points of direct current transmission lines 31, 32 are provided with direct current breakers DCCB1-DCCB4. States during each operation or stopping of the direct current transmission lines 31, 32 are kept stored, and when only one circuit among the direct current transmission lines 31, 32 is worked because of an accident or forced stopping or the like, then the direct current breakers are contrived not to be worked even if the accident is generated on the transmission lines.

4. 发明专利

JPS63284744A PLASMA X-RAY SOURCE 失效
公开(公告)号：JPS63284744A
公开(公告)日：1988-11-22
申请号：JP11705687
申请日：1987-05-15
申请人： HITACHI LTD
发明人： SUZUKI KOJI , ARITA HIROSHI , TOKUYAMA SHUNJI , KUROSAWA YUKIO
IPC分类号： H05G2/00 , H01J35/22 , H01L21/027 , H01L21/30 , H05G1/02
摘要： PURPOSE:To make it possible to obtain a plasma X-ray source with high brightness, long service life and large freedom in wave length selection by making the inside of a discharge vessel vacuum while providing a switching means outside a discharge circuit and also forming either of electrodes with X-ray generating material. CONSTITUTION:A switching means is sealed inside an electrode 1 positioned at the center of a vessel through an insulating material 11 and formed with a trigger electrode 12 drawn to the outside and a trigger pulse source 13 provided between the trigger electrode 12 and an electrode 1. Then, the inside of a discharge vessel 4 is exhausted in vacuum through an exhaust hole 14 and maintained at high vacuum degree. An X-ray material having a desired wave length is used for faced electrodes 1 and 2. Since discharge is generated on the faced electrodes with a switching means provided outside the discharge circuit, a switching means inside the discharge circuit is eliminated so that a large current with high speed pulse is obtained. Therefore, it is possible to generate X-ray with high brightness, eliminate the deterioration of the insulating material and prolong the service life in the plasma X-ray source.

5. 发明专利

JPS62154512A BRAKER OPERATING THREE PHASES TOGETHER 失效
公开(公告)号：JPS62154512A
公开(公告)日：1987-07-09
申请号：JP29274285
申请日：1985-12-27
申请人： HITACHI LTD
发明人： NATSUI KENICHI , KOYANAGI OSAMU , TOKUYAMA SHUNJI
IPC分类号： H01H33/42

6. 发明专利

JPS61171019A HIGH VOLTAGE DC BREAKER 失效
公开(公告)号：JPS61171019A
公开(公告)日：1986-08-01
申请号：JP1090385
申请日：1985-01-25
申请人： HITACHI LTD
发明人： SUZUKI KOJI , TOKUYAMA SHUNJI , ARIMATSU KEIJI
IPC分类号： H01H33/59

7. 发明专利

JP2003348721A Gas-blowing breaker 审中-公开
标题翻译：燃气断路器
公开(公告)号：JP2003348721A
公开(公告)日：2003-12-05
申请号：JP2002155953
申请日：2002-05-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TOKUYAMA SHUNJI , URAI HAJIME , OSHITA YOICHI , YANO MAKOTO
IPC分类号： H01H33/873 , H02B13/02 , H02B13/055
CPC分类号： H01H2033/566
摘要： PROBLEM TO BE SOLVED: To provide a gas-blowing breaker, capable of obtaining a disconnecting property equal to or higher than the case of using an SF 6 gas, using alternative gas as arc-extinguishing gas. SOLUTION: A gas-blowing disconnecting part 1 and a gas-blowing disconnecting part 2 are arranged in series between bushing terminals 24, an alternative gas that is superior in a BTF disconnecting property is sealed in the disconnecting part 1 as the arc-extinguishing gas; and alternative gas that is superior in an SLF disconnecting property is sealed in the disconnecting part 2 as the arc-extinguishing gas. Since the gas-blowing part 1 and the gas- blowing part 2 are electrically connected in series, the gas-blowing breaker is obtained, which is superior in both the SLF disconnecting property and the BTF disconnecting property and has the disconnecting property equal to or higher than the case using the SF 6 gas. The use of the alternative gas largely contributes to the prevention of global warming. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供一种能够获得等于或高于使用SF气体的情况的气体断路器，使用替代气体作为灭弧剂加油站。
解决方案：气体分离部1和气体吹出断开部2串联布置在衬套端子24之间，BTF断开性优异的替代气体被密封在断开部分1中作为弧灭火气体并且在断路部2中作为灭弧气体密封具有优异的SLF断开性的替代气体。由于气体吹出部分1和气体吹送部分2串联电连接，所以获得了吹气断路器，其在SLF断开连接性能和BTF断开性能方面均优异，并且具有等于或等于高于使用SF 6 气体的情况。替代气体的使用在很大程度上有助于预防全球变暖。版权所有（C）2004，JPO

8. 发明专利

JP2002075148A PUFFER TYPE GAS-BLAST CIRCUIT BREAKER 失效
公开(公告)号：JP2002075148A
公开(公告)日：2002-03-15
申请号：JP2000263534
申请日：2000-08-31
申请人： HITACHI LTD
发明人： MINAMI NAOKI , TOKUYAMA SHUNJI , URAI HAJIME , OSHITA YOICHI , YANO MAKOTO
IPC分类号： H01H33/915 , H01H33/70
摘要： PROBLEM TO BE SOLVED: To provide a puffer type gas-blast circuit breaker, operating with low operating force and exerting proper shut-off performance, not only in the case of small current of several hundred amperes but also in the case of a large current of tens of thousands of amperes. SOLUTION: The puffer type gas-blast circuit breaker has a stationary arc contact, a movable arc contact brought into contact with/separated from the stationary arc contact, a first piston installed on the side of the movable arc contact and reciprocating relative to a first cylinder within the cylinder, a second piston coupled to the movable arc contact and reciprocating relative to a second cylinder within the cylinder, a hole for the first cylinder, which is formed in the first cylinder and enables the effluence of arc-extinguishing bas blown upon an arc generating part for generating an arc when the stationary arc contacts are opened and separated from each other, and a communication passage for allowing the arc generating part to communicating with the inside of the second cylinder. The circuit breaker is provided characteristically with a pressure response valve for opening/closing the communication passage, according to the gas pressure of the arc-generating part.

9. 发明专利

JPH0471285B2 失效
公开(公告)号：JPH0471285B2
公开(公告)日：1992-11-13
申请号：JP22590482
申请日：1982-12-24
申请人： HITACHI LTD
发明人： SUZUKI KOJI , TOKUYAMA SHUNJI , GOTO TOKIO , TAKAHASHI ISAO , HIRASAWA KUNIO
IPC分类号： H01H33/59

10. 发明专利

JPS6457612A CAPACITOR BANK FOR PLASMA X-RAY SOURCE 失效
公开(公告)号：JPS6457612A
公开(公告)日：1989-03-03
申请号：JP21278087
申请日：1987-08-28
申请人： HITACHI LTD
发明人： SUZUKI KOJI , ARITA HIROSHI , TOKUYAMA SHUNJI , KUROSAWA YUKIO
IPC分类号： H01G4/12 , H01G4/38 , H01J35/22 , H01L21/027 , H01L21/30 , H05G1/10 , H05G2/00
摘要： PURPOSE:To obtain an improvement of a capacitor bank in which a large number of ceramic capacitors are integrated and a method for integrating capacitors of easy maintenance, by a method wherein using a unit consisting of a plurality of ceramic capacitors connected in parallel, contact and departing are enabled between the moving contacts provided on the unit side and the fixed contacts provided on the container side. CONSTITUTION:As the capacitor bank in a plasma X-ray source wherein a capacitor bank, a trigger switch, a discharge tube, etc., are electrically connected to form an X-ray generating source, a unit capacitor 1 having a plurality of ceramic capacitors 2 connected in parallel is used. And, part of the conductor of the unit capacitor 1 is used as moving contacts 8, 9, and fixed contacts 6, 7 are provided on the unit capacitor container side, thereby facilitating insertion and removal of the unit capacitor 1. For instance, a plurality of ceramic capacitors 2 are connected between terminal boards 3, 4 thereby to construct a capacitor unit 1. And, the surrounding of the unit 1 is partitioned by an insulating partitioning board 5, and the moving contacts 8, 9 provided on one end of the terminal boards 3, 4 are brought into contact with the fixed contacts 6, 7 provided on part of the partitioning board 5.

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