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1. 发明专利

JP2000354310A GAS INSULATED SWITCHGEAR 失效
公开(公告)号：JP2000354310A
公开(公告)日：2000-12-19
申请号：JP16180399
申请日：1999-06-09
申请人： FUJI ELECTRIC CO LTD
发明人： FUJITA MASAHIKO , IZAWA SHIGERU
IPC分类号： H02B1/20 , H02B13/02
摘要： PROBLEM TO BE SOLVED: To reduce the occupying space of a gas insulated switchgear by making the axial positions of the projecting sections of three phases of gas insulated branch buses protruded outward in the radial direction different from each other between adjacent phases. SOLUTION: The positions of connection flanges 5 in the axial direction, namely, in the longitudinal direction of gas insulated branch buses 3 are made different from each other. In order to position the flanges 5 in the above- mentioned way, three phases of gas insulated branch busses 3 are arranged horizontally so that the phases may be arranged horizontally in one vertical stage in the cross section perpendicular to the axial direction of the buses 3 and, at the same time, the interphase dimension d' of the portions of the buses 3 extended in parallel with the arranging direction of gas bushings 2 is made smaller than those (d) of the portions of the buses 3 extended perpendicularly to the arranging direction of the bushings 2. Therefore, the occupying space of a separated phase type gas insulated switchgear can be reduced.

2. 发明专利

JP2000354309A GAS INSULATED SWITCHGEAR 失效
公开(公告)号：JP2000354309A
公开(公告)日：2000-12-19
申请号：JP16180299
申请日：1999-06-09
申请人： FUJI ELECTRIC CO LTD
发明人： FUJITA MASAHIKO , IZAWA SHIGERU
IPC分类号： H02B1/20 , H02B13/02
摘要： PROBLEM TO BE SOLVED: To reduce the occupying space of a gas insulated switchgear by arranging the three phases of gas insulated branch buses of the switchgear, in such a way that the buses are respectively positioned to the apexes of a triangle in the cross section perpendicular to the axial direction of the buses. SOLUTION: Three phases of separated phase gas insulated branch buses 3a of second and third lines 12 and 13 are arranged in a triangular at each line, namely, to the apexes of a triangle in the cross section perpendicular to the axial direction of the buses 3a in a portion which is extended in parallel with the arranging direction of gas bushings 2. Thus, the buses 3a are housed in a space equivalent to that obtained when the buses 3a are arranged in a three-phase collected state although the buses 3a are of a separated phase type. Consequently, such a problem that the feature of the separated phase type, such as no interphase short path exists, and so on, is eliminated and the problems which are raised at the time of manufacturing, maintaining, and managing a gas insulated switchgear can be eliminated and the occupying space of the switchgear can be reduced.

3. 发明专利

JPS56121312A GAS INSULATED SWITCH 失效
公开(公告)号：JPS56121312A
公开(公告)日：1981-09-24
申请号：JP2472680
申请日：1980-02-29
申请人： FUJI ELECTRIC CO LTD
发明人： IZAWA SHIGERU
IPC分类号： H02B13/02

4. 发明专利

JPS5145283A 3 SOITSUKATSUTANKUGATAGASUSHADANKI 失效
公开(公告)号：JPS5145283A
公开(公告)日：1976-04-17
申请号：JP11952974
申请日：1974-10-17
申请人： FUJI ELECTRIC CO LTD
发明人： IWATA KOICHI , IZAWA SHIGERU
IPC分类号： H01H33/66 , H01H33/32 , H01H33/91

5. 发明专利

JPH03250513A PHASE SEPARATION TYPE GAS INSULATION SWITCHGEAR 失效
公开(公告)号：JPH03250513A
公开(公告)日：1991-11-08
申请号：JP3531290
申请日：1990-02-16
申请人： FUJI ELECTRIC CO LTD
发明人： IZAWA SHIGERU
IPC分类号： H01H33/53
摘要： PURPOSE:To improve reliability upon the characteristics of a phase separation type gas insulation siwtchgear, the profitability thereof and the workability thereof the composing the phase separation type gas insulation switchgear as a device including componential elements each comprising cylindrical tanks of separate phases united in all the phases inseparably from one another. CONSTITUTION:A phase separation type gas insulation switchgear(GIS) is composed as a device including componential elements each comprising cylindrical tanks 5 of separate phases united in all the phases inseparably from one another. This eliminates the need for a mounting stand onto which the tanks 5 of separate phases are assembled when the simple body of each of the componential elements is tested and consequently eliminates the need for assembly work required only for a test on the simple body except assembly work required for assembling the respective componential elements into one united body in order to form the GIS while a space between the axial lines of the tanks of separate phases under test on the simple body is invariably kept when the componential elements are assembled into the GIS, so that the characteristic of the simple body obtained through the test on the simple body are perfectly reproduced when the componential elements are assembled into the GIS even with also such a componential element as a circuit breaker wherein the space between the axial lines of the tanks of separate phases may have an influence upon the operating characteristic of the GIS.

6. 发明专利

JPS5142961A 3 SOITSUKATSUTANKUGATAGASUSHADANKI 失效
公开(公告)号：JPS5142961A
公开(公告)日：1976-04-12
申请号：JP11659674
申请日：1974-10-09
申请人： FUJI ELECTRIC CO LTD
发明人： IWATA KOICHI , IZAWA SHIGERU
IPC分类号： H01H33/56 , H01H1/58 , H01H33/02

7. 发明专利

JP2002163961A SWITCH 失效
公开(公告)号：JP2002163961A
公开(公告)日：2002-06-07
申请号：JP2000346524
申请日：2000-11-14
申请人： FUJI ELECTRIC CO LTD
发明人： NAKAJIMA MASATOSHI , KIMURA YOICHI , FUJITA MASAHIKO , IZAWA SHIGERU
IPC分类号： H01H33/64 , H01H33/04 , H01H33/24
摘要： PROBLEM TO BE SOLVED: To prevent that a melting damage amount of a contact unit does not increase even if a moving speed of a movable contact unit is made to be slower than before by moderating an electric field of a tip part of the movable contact unit. SOLUTION: In a switch which makes contact units mutually connect and separate by letting a tip part 1A of the movable contact unit 1 go in and out of a contact hole 2A of a fixed contact unit 2, the movable contact unit 1 is equipped with a large diameter part 5 having a larger outside diameter than that of the tip part 1A, and the large diameter part 5 is fixed to an anti-fixed contact unit 2 side of the tip part 1A.

8. 发明专利

JPS5142962A 3 SOITSUKATSUTANKUGATAGASUSHADANKI 失效
公开(公告)号：JPS5142962A
公开(公告)日：1976-04-12
申请号：JP11659774
申请日：1974-10-09
申请人： FUJI ELECTRIC CO LTD
发明人： IWATA KOICHI , IZAWA SHIGERU
IPC分类号： H01H33/915 , H01H33/91

9. 发明专利

JPS5141873A 3 SOITSUKATSUTANKUGATAGASUSHADANKI 失效
公开(公告)号：JPS5141873A
公开(公告)日：1976-04-08
申请号：JP11441074
申请日：1974-10-04
申请人： FUJI ELECTRIC CO LTD
发明人： IWATA KOICHI , IZAWA SHIGERU
IPC分类号： H01H33/915 , H01H33/57

10. 发明专利

JPS5956805A Enclosed gas insulated switching device 失效
标题翻译：封闭气体绝缘开关装置
公开(公告)号：JPS5956805A
公开(公告)日：1984-04-02
申请号：JP16638282
申请日：1982-09-24
申请人： Fuji Electric Co Ltd
发明人： IZAWA SHIGERU , ITSUSEKI KENZOU
IPC分类号： H02B13/02

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