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1. 发明专利

JPH10256045A TRANSFORMER AND BUSHING FOR TRANSFORMER 失效
公开(公告)号：JPH10256045A
公开(公告)日：1998-09-25
申请号：JP5948197
申请日：1997-03-13
申请人： DAIHEN CORP
发明人： HARA SATOSHI , KURIYAMA TADASHI
IPC分类号： H01F27/04 , H01H85/02 , H01H85/042 , H01H85/20 , H01H85/22 , H01H85/50
摘要： PROBLEM TO BE SOLVED: To provide a transformer for connecting a primary side to a power distribution line without going through a high-voltage load switcher. SOLUTION: A fuse 303 is inserted into a bushing body 301 of a primary bushing 3 that is mounted to a case 1 for accommodating a transformer body, and a terminal 303b at one terminal side of the fuse is brought into contact with a contact 302 that is provided in the bushing body. A terminal 303c at the other terminal side of the fuse is brought into contact with a contact 304 in a connector 305 that is mounted to the tip side of the bushing body removably. An arc-extinguishing mechanism is constituted of an arc-extinguishing cylindrical part 305a3 that is provided at the connector and an arc-extinguishing rod 303d that is mounted to the tip of the terminal 303c of the fuse. The contact 302 is connected to the primary coil of a transformer body via a bushing conductor 309, and a contact 304 is connected to a lead wire 5 that is connected to a power distribution line.

2. 发明专利

JP2001016715A TRANSFORMER FACILITY 失效
公开(公告)号：JP2001016715A
公开(公告)日：2001-01-19
申请号：JP17963899
申请日：1999-06-25
申请人： KANSAI ELECTRIC POWER CO , DAIHEN CORP
发明人： TANIGUCHI JUNJI , ITO TAKAHARU , ITO KOZO , HARA SATOSHI , INABA SEIJI
IPC分类号： H01F27/04 , H02B1/18 , H02B5/00
摘要： PROBLEM TO BE SOLVED: To provide a transformer facility, where fixing of a fuse unit can be performed safely. SOLUTION: The base end side of a fuse unit 14U is connected rotatably and electrically integrally, with a pivotal coupling 15U to a hinge conductor 13U connected to the tip of the bushing conductor of a bushing unit 12U, and the movable cut out switch male unit is connected rotatably and electrically integrally to the tip side of this fuse unit 14U, and the movable contact is connected to the fixed contact within a cut out switch female unit. This facility is provided with a projection-recess fit-in type of a temporary retaining mechanism 28, which automatically temporarily retains the fuse unit 14U whose tip lowers, rotating around the pivotal coupling 15U, in the conditions where a fixed contact is pulled away from the movable contact in the hinge conductor 13U, between the hinge conductor 13U and the fuse holder 14Ua on the base end side of the fuse unit 14U.

3. 发明专利

JPH10256046A TRANSFORMER AND BUSHING FOR TRANSFORMER 失效
公开(公告)号：JPH10256046A
公开(公告)日：1998-09-25
申请号：JP5948297
申请日：1997-03-13
申请人： DAIHEN CORP
发明人： HARA SATOSHI , KURIYAMA TADASHI
IPC分类号： H01F27/04 , H01H85/02 , H01H85/042 , H01H85/20 , H01H85/22 , H01H85/30 , H01H85/43
摘要： PROBLEM TO BE SOLVED: To provide a transformer for connecting a primary side to a power distribution line without going through a high-voltage load switcher. SOLUTION: Contacts 302 and 304 are provided in a primary bushing 3 that is mounted to a case 1 of a transformer, a fuse 303 is inserted into the bushing 3, and a terminal 303b at one terminal side of a fuse and a terminal 303c at the other terminal side are brought into contact with contacts 302 and 304. An arc-extinguishing mechanism 305 for extinguishing an arc that is generated when the terminal 303b at one terminal side of the fuse generates when it is away from the contact 302 is provided. By pulling the fuse out of the bushing, the primary current of the transformer is broken. Also, by inserting the fuse into the bushing and bringing fuse terminals 303b and 303c into the contacts 302 and 304, the primary current of the transformer is thrown.

4. 发明专利

JPH09306304A HIGH VOLTAGE LOAD-BREAK SWITCH 失效
公开(公告)号：JPH09306304A
公开(公告)日：1997-11-28
申请号：JP11264096
申请日：1996-05-07
申请人： CHUBU ELECTRIC POWER , DAIHEN CORP
发明人： SATOU AKIYOSHI , NAKAMURA SATORU , HARA SATOSHI , NAGASAKI OSAMU
IPC分类号： H01H33/08
摘要： PROBLEM TO BE SOLVED: To improve breaking performance of a load current of a high voltage load-break switch. SOLUTION: A fixed contactor 15 and an arc-extinguishing cylinder 30 are juxtaposed in a condition of making common use of the respective axes, and an arc-extinguishing bar 32 is concentrically arranged inside the arc- extinguishing cylinder 30. A thin clearance 33 is formed between the arc- extinguishing cylinder 30 and the arc-extinguishing bar 32, and a tubular movable contactor 17 is contacted with the fixed contactor 15 through the thin clearance 33. An arc-extinguishing shutter 34 is arranged so as to be displaced by following the movable contactor 17 by energizing force of a spring 35 when the movable contactor 17 separates from the fixed contactor 15. Just after the movable contactor 17 separates from the fixed contactor 15, the arc- extinguishing shutter 34 is entered into a clearance between the arc-extingusing cylinder 30 and the arc-extinguishing bar 32, and the thin clearance 33 is blocked up, and an arc is extinguished by dividing the arc by the arc-extinguishing shutter 34.

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