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31. 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.

32. 发明专利

JPH07264736A GAS INSULATED SWITCHGEAR 失效
公开(公告)号：JPH07264736A
公开(公告)日：1995-10-13
申请号：JP4825994
申请日：1994-03-18
申请人： HITACHI LTD
发明人： INAMI YOSHIAKI , TANAKA TOYOICHI , WACHI MASAHEI
IPC分类号： H02B13/02 , H02B5/00 , H02B5/06
摘要： PURPOSE:To reduce installation area by arranging a power receiving unit outside a instrument voltage current transformer unit, further arranging an unit at transformer side at the outer side of said power receiving side and arranging a bus for connecting units together in parallel to cubicles arranged in a row. CONSTITUTION:Instrument voltage current transformer units PU1 and PU2 are arranged at the center and are connected to power receiving units LU1 and LU2 arranged at both the outer sides of PU1 and PU2 through BUS1 at the primary side of the instrument voltage current transformers. Also, BUS2 and BUS3 at the secondary side of are arranged at the lower stage BUS1, and units TU1 to TU4 at the transformer side arranged outside the power receiving unit LU1 and LU2 are connected to the secondary side of the instrument voltage current transformer. Moreover, operation cubicles 40 possessed by respective units are arranged in a row in front of the compressed gas insulation switchgear, and BUS1 and BUS2, and BUS3 are arranged in a direction parallel to a row on two upper and lower horizontal stages. By doing this, the installation area can be reduced.

33. 发明专利

JPH0683526B2 失效
公开(公告)号：JPH0683526B2
公开(公告)日：1994-10-19
申请号：JP27897485
申请日：1985-12-13
申请人： HITACHI LTD
发明人： TAKEDA HISASHI , TANAKA TOYOICHI , NAKAGAWA TAKUO
IPC分类号： H02B13/055 , H01H33/55

34. 发明专利

JPH06276623A COMPLEX TYPE INCOMING ELECTRICAL ENERGY TRANSFORMING EQUIPMENT 失效
公开(公告)号：JPH06276623A
公开(公告)日：1994-09-30
申请号：JP5679593
申请日：1993-03-17
申请人： HITACHI LTD
发明人： ITO AKIRA , OSHIMA MASABUMI , TANAKA TOYOICHI , TANIMIZU TORU , SAITO MASAO
IPC分类号： H02B5/00 , H02B1/30 , H02B5/06 , H02B7/01 , H02B7/06
摘要： PURPOSE:To arbitrarily lay out in accordance with user's desire by closely arranging a transformer unit and a switching device unit on the rear surface side of a control panel unit in such a direction as to cross over each other at a right angle. CONSTITUTION:A substantially rectangular transformer unit TR is arranged in the direction of crossing over at a right angle a substantially rectangular switching device unit R from one end thereof. Also, a substantially rectangular control panel unit S is arranged in the direction of crossing over at a right angle the switching device unit on the other end thereof. The transformer unit TR and the control panel unit S are arranged in a same plane in the direction of the length of the switching device unit R. With this arrangement, the operating plane of the control panel unit S and the switching device unit R can be made into one plane to be able to deal with various kinds of modifications. Therefore, an incoming electrical energy transforming equipment can be arbitrarily laid out in accordance with user's desire for a user's site or the configuration of the equipment.

35. 发明专利

JPH05244710A 失效
公开(公告)号：JPH05244710A
公开(公告)日：1993-09-21
申请号：JP4324692
申请日：1992-02-28
申请人： HITACHI LTD
发明人： TETSU NORIYUKI , TAKAMOTO MANABU , TANAKA TOYOICHI , MIWATA SATOSHI
IPC分类号： H02B13/02
摘要： PURPOSE:To obtain a gas insulated switchgear in which enclosed container constituting a circuit breaker is downsized in the direction to be connected with buses. CONSTITUTION:An enclosed container 32 having a circuit breaker 1 is formed rectangularly and a flange is provided directly thereabove on the opposite side of a cubicle 17A. A tubular bus side enclosed container 29 is then coupled through an insulating spacer 22 with the flange while a tubular cable head container 39 is connected to the lower part thereof on the opposite side of the cubicle 17A, thus shortening the axial length in the connecting direction of the enclosed container 32 and the bus side enclosed container 29.

36. 发明专利

JPH0556520A POWER RECEIVING/TRANSFORMING SYSTEM 失效
公开(公告)号：JPH0556520A
公开(公告)日：1993-03-05
申请号：JP21688591
申请日：1991-08-28
申请人： HITACHI LTD
发明人： TANAKA TOYOICHI , TAKAMOTO MANABU , MIWATA SATOSHI , TETSU NORIYUKI , IZUMI SADAO
IPC分类号： H02B1/18 , H02B5/00 , H02B5/06 , H02B13/02
摘要： PURPOSE:To provide a power receiving/transforming system excellent in maintenance/inspection performance having dimensions reduced such that the units can be transported integrally even when a circuit breaker is installed on the primary of transformer in dual line power receiving two bank system. CONSTITUTION:In an industrial power receiving/transforming system in which power is fed from the dual lines through an instrument voltage/current transformer 1 to respective transformers, first primary circuit breakers 2 are disposed on the opposite sides of the instrument voltage/current transformer 1 while second power receiving side circuit breakers 3 are disposed on the opposite sides thereof wherein the circuit breakers 2, 3, a power receiving section 5, a transformer connecting section 9 and the instrument voltage/current transformer 1 are connected at the conduit joins 4, 11, 13 at the back of the circuit breakers 2, 3.

37. 发明专利

JPH04368408A GAS INSULATED SWITCHGEAR 失效
公开(公告)号：JPH04368408A
公开(公告)日：1992-12-21
申请号：JP16612791
申请日：1991-06-12
申请人： HITACHI LTD
发明人： TANAKA TOYOICHI , MIWATA SATOSHI , TAKAMOTO MANABU , IZUMI SADAO , MINAGAWA TAKASHI
IPC分类号： H01H33/56 , H01H33/42 , H02B1/20 , H02B13/02 , H02B13/055
摘要： PURPOSE:To provide a gas insulated switchgear which can be increased in its capacity by improving the cooling effect of a circuit breaker. CONSTITUTION:A sealed container 32 which is positioned below main buses 4 and 5 and main-bus side disconnectors 2 and 3 and is provided with a vertical section 32a on the side of the disconnectors 2 and 3 opposite to the main buses 4 and 5. Then, by providing a vertical type circuit breaker 1 supported by a side wall 24, with the movable section of its circuit breaking section and a link mechanism 33 being positioned in its lower section, in the container 32 below the main buses 4 and 5 and vertical section 32a, the heat generated by the breaker 1 is radiated by utilizing the convection of an insulating gas in the vertical section 32a.

38. 发明专利

JPS63269426A PORCELAIN-CLAD GAS BREAKER 失效
公开(公告)号：JPS63269426A
公开(公告)日：1988-11-07
申请号：JP10193887
申请日：1987-04-27
申请人： HITACHI LTD
发明人： NISHIMURA KAZUHIKO , TANAKA TOYOICHI , DAIMON GORO
IPC分类号： H01H33/56 , H01H33/42
摘要： PURPOSE:To facilitate the adjustment of insertion springs and shorten the adjustment time by separately arranging the insertion springs in a break section insulator and a storage case and providing the spring force adjusting member of the insertion spring in the storage case. CONSTITUTION:A porcelain-clad gas breaker has multiple insertion springs, which are divided into an insertion spring 9 on the break section side arranged in a break section insulator and an insertion spring 11 in an operation box 20, and the strength of the insertion spring 9 on the break section side is made larger than that of the insertion spring 11 in the operation box 20. Only the tensile force is applied to an insulated operation rod 6, which withstands the buckling force, thus its cross section area is not required to be increased. In addition, the insertion spring 11 in the operation box 20 is located at the lower section, with its strength kept relatively small, and its adjustment is facilitated. The insertion force of the movable piece 3 of the break section can be thereby adjusted easily in a short time.

39. 发明专利

JPS62105328A GAS CIRCUIT BREAKER 失效
公开(公告)号：JPS62105328A
公开(公告)日：1987-05-15
申请号：JP24497385
申请日：1985-10-31
申请人： HITACHI LTD
发明人： TANAKA TOYOICHI , NAKAGAWA SADAO
IPC分类号： H01H33/56

40. 发明专利

JPS61128709A Gas insulated switchgear 失效
公开(公告)号：JPS61128709A
公开(公告)日：1986-06-16
申请号：JP24604984
申请日：1984-11-22
申请人： Hitachi Ltd
发明人： TANAKA TOYOICHI , SAKAGUCHI MINORU , OKUMURA KIYOSHI
IPC分类号： H02B13/02

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