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1. 发明专利

JPH08315692A DOUBLE THROW INTERLOCK DEVICE 失效
公开(公告)号：JPH08315692A
公开(公告)日：1996-11-29
申请号：JP11553995
申请日：1995-05-15
申请人： HITACHI LTD , YASUKAWA CONTROL KK
发明人： TANAKA TOYOICHI , KASHIMURA KAZUNORI , SUZUKI TOKUO , IIMORI KENICHI , MATSUO TOMIO , MIYAZAKI ISAO , YAMADA YASUYOSHI
IPC分类号： H01H33/52 , H01H9/26
摘要： PURPOSE: To hinder the action from shifting from the changeover of action being one object of operation to the changeover of action being the other object of operation, when a manual operation handle is kept mounted on a manual operation shaft. CONSTITUTION: The on/off operation of a breaker or the off/earth operation of an earthing device is performed accompanying the rotation of an output shaft 24. An output shaft lever 26 is coupled with this output shaft 24, and a projection 28 is made at the lever 26. When an operation part 34 is in the first retaining hole 48, the on/off operation of the breaker is possible, and when the operation part 34 is in a second retaining hole 50, the off/earth operation of the earthing device is possible, and the changeover of the operation from the breaker to the earthing device or from the earthing device to the breaker is possible only when the slide plate 39 is slid in the direction A. when the manual operation handle 12 is mounted on the manual operation shaft 10, even if the slide plate 39 seeks to shift in the direction A, it abuts on the manual operation handle 12, and the shifting is checked.

2. 发明专利

JPS61124012A Breaker 失效
公开(公告)号：JPS61124012A
公开(公告)日：1986-06-11
申请号：JP24447584
申请日：1984-11-21
申请人： Hitachi Ltd
发明人： SUZUKI TOKUO , NAKAGAWA SADAO
IPC分类号： H01H33/56

3. 发明专利

JPH10136517A GAS INSULATION BREAKER 失效
公开(公告)号：JPH10136517A
公开(公告)日：1998-05-22
申请号：JP28535496
申请日：1996-10-28
申请人： HITACHI LTD
发明人： TANAKA TOYOICHI , WACHI MASAHEI , SUZUKI TOKUO
IPC分类号： H02B13/02
摘要： PROBLEM TO BE SOLVED: To make it possible to check one of systems in maintenance, together with a control power system, while the other system is in an operational state in a gas insulation breaker operated in a double measurement method or having one measurement and a bypass circuit. SOLUTION: A gas insulation breaker includes two measurement voltage/ current transformer units PU, and a connection unit CU for connecting the primary and secondary sides of the two units PU, and a transformer connection unit TU for connecting an incoming power unit LU and the transformer. In this case, each connection unit is made up of two breakers 1 and 4, and two grounding breakers 2 and 3. One breaker and one grounding breaker are stored an a container, and each container set at upper and lower stages is elongated linearly at right angles to each unit.

4. 发明专利

JPH0879924A GAS INSULATED SWITCHGEAR 失效
公开(公告)号：JPH0879924A
公开(公告)日：1996-03-22
申请号：JP21092094
申请日：1994-09-05
申请人： HITACHI LTD
发明人： SUZUKI TOKUO , FUJII KAZUHIRO
IPC分类号： H02B13/02
摘要： PURPOSE: To obtain a gas insulated switchgear which can be transported as a unit by disposing a transformer perpendicularly to a bus coupling a power receiving unit and an interrupting unit and coupling the transformer unit with a circuit breaker through an L-shaped branch bus. CONSTITUTION: A lead-in bushing 1, a current transformer 7, and a power receiving circuit breaker 2 constitute a conduction path as a power receiving unit. A ground switch 3 on the primary of circuit breaker is connected between the power receiving unit and the upper bus 11 of a circuit breaker 4. A lower bus passes through the circuit breaker 4 and connected with an L-type enclosure 10 housing a ground switch 5 on the secondary of circuit breaker connected with a transformer 6. With such arrangement, the gas insulated switchgear 14 and the transformer 6 can be confined within a transportation limit dimension L2 . Since the gas insulated switchgear can be transported as a unit except the bushing 1, transportation cost and the labor required for installation at site can be reduced.

5. 发明专利

JPH10155215A GAS INSULATED SWITCHGEAR 失效
公开(公告)号：JPH10155215A
公开(公告)日：1998-06-09
申请号：JP31334296
申请日：1996-11-25
申请人： HITACHI LTD
发明人： TANAKA TOYOICHI , SUZUKI TOKUO , INAMI YOSHIAKI , ISHIDA YUKIYASU
IPC分类号： H02B13/02 , H02B13/035 , H02G5/06 , H02G5/10
摘要： PROBLEM TO BE SOLVED: To achieve the standardization and the common use of T-branched bus and to make it possible to achieve the cross-shaped branching, by arranging three-phase conductors straight and in parallel in side a grounding metal container. SOLUTION: A bus container (grounding metal container) 1 and a T-branched container 4 are connected. An insulating spacer 8 is provided at a flange 21, which is attached to the end part of the T-branched container 4. A breaker is connected through a tulip-shaped contact 9 arranged at the outside. Then, three-phase conductors 2 are arranged in parallel in the straight-line pattern in the longitudinal direction. In the T-branched container 4, the connecting lines T-branched from the conductors 2 are arranged in the T-branched container 4. Blades 3 are provide at the halfway of the connecting lines. At this time, the three-phase blades 3 are aligned in the plane vertical to the plane wherein the three-phase conductors 2 are aligned. Thus, the common use and the standardization of the arrangement of the buses can be achieved, and the cross-shape bus branching can be performed.

6. 发明专利

JPH09191511A RECEIVING AND TRANSFORMING APPARATUS 失效
公开(公告)号：JPH09191511A
公开(公告)日：1997-07-22
申请号：JP48696
申请日：1996-01-08
申请人： HITACHI LTD
发明人： TANAKA TOYOICHI , WACHI MASAHEI , SUZUKI TOKUO , ISHIDA YUKIYASU
IPC分类号： H02B5/00 , H02B13/02
摘要： PROBLEM TO BE SOLVED: To obtain a receiving and transforming apparatus whose specifications can be made common to those of a receiving and transforming system by a method wherein a bus which connects a receiving and transforming unit to the primary side of a transformer-current transformer unit for measurement and a bus which connects the secondary side of the transformer-current transformer unit for measurement via a disconnecting switch are housed in one container. SOLUTION: A bus 50 is connected via a disconnecting switch 9 installed on the secondary side of a breaker 8 at a receiving unit, and it is connected to a PCT bus 51 at a PCT unit. A transformer-current transformer 11 for measurement is arranged on the lower side at the PCT unit, and it is T-branched so as to be connected to the PCT bus 51. A first-half conductor bus 51 from the disconnecting switch 9, a return conductor up to a disconnecting switch 12 from the PCT bus is arranged coaxially, a back-and-forth conductor structure is adopted, and the conductors are housed in one container.

7. 发明专利

JP2003155181A RAILWAY STATION FACILITY 审中-公开
公开(公告)号：JP2003155181A
公开(公告)日：2003-05-27
申请号：JP2001356509
申请日：2001-11-21
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： SHUDO KATSUHARU , ONODERA MINORU , UENO AKIO , SUZUKI TOKUO
IPC分类号： E01F1/00 , B66B9/00
摘要： PROBLEM TO BE SOLVED: To provide a railway station facility enabling even a small station to have an elevator only if it has a passengers' overpass connecting platforms by staircases. SOLUTION: The facility comprises platforms 1 provided in parallel with a railway 2, a passengers' overpass 3 bridging the railway 2, staircases 4 connecting the bridge 3 and the platforms 1, elevators 5 provided near the staircases 4 with their upper-floor entrances 7 positioned on the side of the bridge 3, and passages 8 added for connecting the entrances 7 and the bridge 3.

8. 发明专利

JPH05304705A 失效
公开(公告)号：JPH05304705A
公开(公告)日：1993-11-16
申请号：JP10659992
申请日：1992-04-24
申请人： HITACHI LTD
发明人： TANAKA TOYOICHI , SUZUKI TOKUO , NAGASAWA KAZUHIKO , KASHIMURA KAZUNORI
IPC分类号： H02B7/06 , H02B13/02
摘要： PURPOSE:To make the title switchgear compact by providing a by-pass disconnecting switch for by-passing one potential and current transformer(PCT) unit and unit operating cubicles in front of electric energy receiving units. CONSTITUTION:One PCT unit and a by-pass disconnecting switch unit constituting a closed loop together with the PCT unit are arranged at the center of the title switchgear. Transformer units are arranged on both sides of the switchgear and electric energy receiving units No.1 and No.2 are arranged on the outside of the switchgear. Current transformers 13 and 23 for loop reception and a by-passing disconnecting switch 22 are arranged in the horizontal plane of an upper bus container 107 connecting the units No.1 and No.2 to each other. In addition, a lower bus container 111 connecting the units No.1 and No.2 to each other is arranged in different horizontal planes in an upper and lower stages. In addition, the units are arranged in a row and cubicles 301-303 and 311-313 for operating the units are arranged in front of the units. Therefore, the whole body can be housed in a compact state.

9. 发明专利

JPH02294206A COMPRESSED-GAS-INSULATED SWITCHGEAR 失效
公开(公告)号：JPH02294206A
公开(公告)日：1990-12-05
申请号：JP11382889
申请日：1989-05-08
申请人： HITACHI LTD , HITACHI ELECTRIC SYSTEMS
发明人： AIKO YORIYUKI , MIWATA SATOSHI , MONMA NOBUYUKI , SUZUKI TOKUO , SEKIDA SABURO
IPC分类号： H02B13/065
摘要： PURPOSE:To make compact a common container having a voltage application section by constituting an operation section of a connection device and a disconnection section on the same side of the common container along main circuit conductors. CONSTITUTION:In a common container 5 where three-phase main circuit conductors 8a to 8c are enclosed, an instrument transformer 7 and a voltage application section 40 connected with main circuit conductors 8a to 8c are provided. The voltage application section 40 is alternately connected to an arbitrary phase of the three-phase main circuit conductors 8a to 8c in the common container 5, while a connection device 17 to earth the other two-phase main circuit conductors. A disconnectable disconnection section 44 is constituted between the instrument transformer 7 and the main circuit conductors 8a to 8c. An operational mechanism section 6 of this disconnection section 44 and that of the connection device 17 are constituted on the same side of the common container 5. The common container 5 can thereby be made compact.

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