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1. 发明专利

JPH09247814A GAS INSULATED SWITCH GEAR 失效
公开(公告)号：JPH09247814A
公开(公告)日：1997-09-19
申请号：JP5028396
申请日：1996-03-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKAHARA KOJI , TANDA SHOJI , MATSUDA SETSUYUKI
IPC分类号： H02B13/02
摘要： PROBLEM TO BE SOLVED: To prevent the increase of an installation area when additionally laying a double bus bar at a quadruple bus bar which consists of two pairs of double bus bars. SOLUTION: A blocks 52a, 53a, and B blocks 52b, 53b of main bus bars 52, 53 are disproved in parallel. Then C blocks 52c, 53c are so disposed from one-end sides of the B blocks 52b, 53b as to extend at nearly a right angle with the B blocks 52a, 53b in the opposite direction to the A blocks 52a, 53a. The main bus bar 52 is divided into the first B block 52b and the first C block 52c by means of a third bus bar division unit 56 on one-end sides of the first B block 52b and the first C block 52c and the main bus bar 53 is divided into the second B clock 53b and the second C block 53c by means of a fourth bus bar division unit 57 in one-end sides of the second B block 53b and the second C block 53c.

2. 发明专利

JPH04145814A GAS-INSULATED SWITCHING DEVICE 失效
公开(公告)号：JPH04145814A
公开(公告)日：1992-05-19
申请号：JP26907590
申请日：1990-10-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： SASAMORI KENJI , NAKAHARA KOJI , TANAKA HISAO
IPC分类号： H02B1/22 , H02B13/02
摘要： PURPOSE:To reduce the area for installing a gas insulated switching device and to reduce production cost of the switching device by using the first connecting bus to connect the first bus line communication unit and first bus line segment unit to the first main bus line and likewise by using the second bus line to connect the second bus line communication unit and second bus line segment unit to the second main bus line. CONSTITUTION:A breaker 13A connected to main bus line section 1 and a bus line section 22 connected to main bus line section 2 are used to constitute a bus line communication unit 13. Further, a breaker 14A connected to main bus line section 2A and the connecting bus line section 22 that are commonly used to connect the breaker 14A and the bus line communication unit 13 are used to constitute a bus segment unit 14. On the other hand, a breaker section 16A connected to main bus line section 1 and a connecting bus line section 21 connected to the main bus line section 2A are used to constitute a bus line segment unit 16. Furthermore, a breaker 17A connected to the main bus line section 2A and the bus line section 21 that are used commonly to connect the breaker 17A and the bus line segment unit 16 are used to constitute a bus line communication unit 17.

3. 发明专利

JPS6350922B2 失效
公开(公告)号：JPS6350922B2
公开(公告)日：1988-10-12
申请号：JP11116381
申请日：1981-07-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： MYAMOTO TATSUO , NAKAHARA KOJI
IPC分类号： H02B5/00 , H02B1/20 , H02B13/02

4. 发明专利

JPH1014030A GAS INSULATED SWITCHING DEVICE 失效
公开(公告)号：JPH1014030A
公开(公告)日：1998-01-16
申请号：JP15819596
申请日：1996-06-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMAUCHI TAKAO , NAKAHARA KOJI
IPC分类号： H02B1/20 , H02B3/00 , H02B13/02
摘要： PROBLEM TO BE SOLVED: To reduce a service stop period due to the repairing, testing, and expansion of a power cable in a gas insulated switching device with a plurality of power cables. SOLUTION: In a gas insulated switching device including a cable unit with a plurality of cable heads 7a and 7b that are housed in a gas insulation container 8a being connected to a power cable 9a and a bus that is connected to the cable heads 7a and 7b and is housed in a gas insulation container, the gas insulation containers 8a and 8b of a cable head and the gas insulation container of the bus are connected via a separable gas insulation separation container 24, and the cable heads 7a and 7b and the bus are connected by separable conductors 27a, 27b, 28a, and 28b.

5. 发明专利

JPH02164207A GAS INSULATED SWITCHGEAR 失效
公开(公告)号：JPH02164207A
公开(公告)日：1990-06-25
申请号：JP31691888
申请日：1988-12-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： KATAOKA TAKAHIRO , NAKAHARA KOJI
IPC分类号： H02B13/02
摘要： PURPOSE:To reduce the size of a gas insulated switchgear by connecting first and second branch buses with first and second main buses and arranging a circuitbreaker and a disconnecting switch between the first and second branch buses while a metering transformer on the branch bus. CONSTITUTION:A bus section unit comprising a circuitbreaker 1 and disconnecting switches 2A, 2B is arranged between main buses 6C, 6D. Branch bus fixing sections 8A, 8B are arranged on the buses 6C, 6D and three branch buses 7E, 7F are arranged at each fixing section 8A, 8B. The bus 7E is coupled through the disconnecting switch 2A, the gas circuitbreaker 1 and the disconnecting switch 2B with the bus 7F. Furthermore, a metering transformer 4 is arranged on the buses 7E, 7F thus reducing the size of a gas insulated switchgear.

6. 发明专利

JPH0284005A BUS SWITCHGEAR 失效
公开(公告)号：JPH0284005A
公开(公告)日：1990-03-26
申请号：JP23604988
申请日：1988-09-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHIOMI MINORU , NAKAHARA KOJI , SASAMORI KENJI
IPC分类号： H02B13/02
摘要： PURPOSE:To prevent simultaneous disconnection of two buses by providing two bus-tie circuit breakers and interruting fault current through one circuit breaker upon occurrence of trouble in the other circuit breaker. CONSTITUTION:A bus-tie circuit breaker 9 comprises two circuit breakers 91, 92 and when a trouble occurs in the circuit breaker 91 which is in the operating range of a bus B protective relay, interruption commands are fed to a feeder circuit breaker 4 connected with the bus B and the bus-tie circuit breaker 9 so that only the bus B is disconnected from the system by means of the feeder circuit breaker 4 and the other circuit breaker 92 thus preventing simultaneous disconnection of both buses A, B. Upon occurrence of fault in the way of transformers 5 for two bus-tie circuit breakers 5, the fault point appears to be within the protective ranges 7, 8 of the buses A, B but the fault current is bypassed and simultaneous disconnection of the buses A, B is prevented. Consequently, any one of the buses A, B is connected continuously even when fault occurs at the bus-tie section thus enabling continuous operation of the bus.

7. 发明专利

JPS6181110A Seitchgear 失效
公开(公告)号：JPS6181110A
公开(公告)日：1986-04-24
申请号：JP20280084
申请日：1984-09-26
申请人： Mitsubishi Electric Corp
发明人： SETOYAMA TATSUO , MURAKAMI MASANORI , HAMA TAKAHIRO , NAKAHARA KOJI
IPC分类号： H02B5/00 , H02B1/22

8. 发明专利

JPS6181109A Seitchgear 失效
标题翻译： SEITCHGEAR
公开(公告)号：JPS6181109A
公开(公告)日：1986-04-24
申请号：JP20279984
申请日：1984-09-26
申请人： Mitsubishi Electric Corp
发明人： SETOYAMA TATSUO , MURAKAMI MASANORI , HAMA TAKAHIRO , NAKAHARA KOJI
IPC分类号： H02B5/00 , H02B1/22

9. 发明专利

JP2001231116A COMPOSITE GAS-INSULATED SWITCH 失效
公开(公告)号：JP2001231116A
公开(公告)日：2001-08-24
申请号：JP2000038941
申请日：2000-02-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMAUCHI TAKAO , TSUCHIE AKIRA , NAKAHARA KOJI
IPC分类号： H02B13/02
摘要： PROBLEM TO BE SOLVED: To structure a composite type gas-insulated switch in which a narrow range of the sound part stops within a short period of time if a fault occurs in an apparatus using the same switch, by forming the main bus with the aerial cable, connecting in direct, with a connecting bus, a line unit of the gas-insulated switch connected to the power transmission line and a transformer unit of the gas-insulated switch connected to the transformer, and connecting the connection bus to the main bus with an aerial cable. SOLUTION: A conductor disconnecting part is respectively provided between the first main bus side disconnector of any one unit of the line unit or transformer unit and a circuit breaker, between the second main bus side disconnector and the T branching point connected to the second main bus, between the second main bus side disconnector of the other unit and the circuit breaker, and between the first main bus side disconnector and the T branching point connected to the first main bus.

10. 发明专利

JPH06169509A GAS-FILLED SWITCHGEAR 失效
公开(公告)号：JPH06169509A
公开(公告)日：1994-06-14
申请号：JP31986592
申请日：1992-11-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： AOKI HIROSHI , NAKAHARA KOJI
IPC分类号： H02B13/02
摘要： PURPOSE:To arrange required apparatuses efficiently and to reduce the site area by arranging a bus-bar PT unit for detecting each-phase voltage of main bus-bars, in a position where its three sides are aurrounded by a bus-bar section unit having U-shaped constitution. CONSTITUTION:Two circuits of first and second main bus-bar tanks 10a and 10b having respectively man bus-bars 10A and 10B provided for three phases collectively are provided. Besides, first and second bus-bar section units 1a and 1b in the shape of U are provided between first main bus-bar tanks 10a and 20a and second main bus-bar tanks 10b and 20b, having main bus-bars 10A and 10B and other main bus-bars 20A and 20B with different bus-bar sections. Furthermore, first and second bus-bar PT units 2a and 2b are arranged at positions where each three sides are surrounded respectively by the bus-bar section units 1a and 1b having U-shaped constitution. Accordingly, each-phase voltage of the main bus-bars is detected by these bus-bar PT units 2a and 2b.

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