专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP3400960B2 失效
公开(公告)号：JP3400960B2
公开(公告)日：2003-04-28
申请号：JP24583499
申请日：1999-08-31
IPC分类号： H01F29/04 , G05F1/14 , H02P13/06

2. 发明专利

JP3378340B2 Rectifier 失效
公开(公告)号：JP3378340B2
公开(公告)日：2003-02-17
申请号：JP3866194
申请日：1994-03-09
申请人：東芝システムテクノロジー株式会社 , 株式会社東芝
发明人：哲也海老原 , 芳浩玉利
IPC分类号： H01F29/02 , G05F1/14 , H02M7/04 , H02P13/06

3. 发明专利

JP2001075661A AUTOMATIC VOLTAGE CONTROLLER 失效
公开(公告)号：JP2001075661A
公开(公告)日：2001-03-23
申请号：JP24583499
申请日：1999-08-31
申请人： MUTSUMI DENKI SEISAKUSHO KK , JAPAN AGURIIDO KK , SUKOOPU WAN KK
发明人： YOKOYAMA SATOSHI , TAKAHASHI ISAO
IPC分类号： H01F29/04 , G05F1/14 , H02P13/06
摘要： PROBLEM TO BE SOLVED: To provide an automatic voltage controller for preventing the generation of large surge currents or large surge voltages, and for preventing the inter-phase balance of a transformer from being lost even when a load is unbalanced, and for preventing the capacity or volume of a shunt winding from being increased, and for reducing power loss due to the branch coil, and for easily controlling a switch element. SOLUTION: A branch coil 14 and a serial coil 16-1 are wound around different iron cores, and the shunt winding is obtained as a single coil structure. Then, one of the plural taps of the shunt winding is selected by switch means 18-1-18-3, and an arbitrary voltage is supplied to a secondary coil 16-2 of a transformer constituted of the serial coil so that voltage control can be realized.

4. 发明专利

JPH11162754A TRANSFORMER CONTROLLING AND MONITORING APPARATUS 失效
公开(公告)号：JPH11162754A
公开(公告)日：1999-06-18
申请号：JP32626297
申请日：1997-11-27
申请人： TOSHIBA CORP
发明人： MAEHARA HIROYUKI , SAKAKIBARA TAKAAKI , MARUYAMA SHIRO
IPC分类号： H01F29/04 , H01F38/28 , H02P13/06
摘要： PROBLEM TO BE SOLVED: To provide a transformer controlling and monitoring apparatus, by which total costs necessary for control and monitoring of anomalies of a loaded tap changer and a transformer can be reduced. SOLUTION: One side of a tap driving circuit 2 is connected to a motor power source 12, and the other side is connected to a driving motor 11. A transformer 5 for instruments and a current transformer 6 for instruments are mounted on the line of the motor power source. The transformer 5 for instruments and the current transformer 6 for instruments are connected to a computing circuit 3. The computing circuit 3 is provided with a microprocessor 4. The microprocessor 4 is provided with a means for controlling the tap driving circuit 2 and a means for monitoring anomalies of the tap changer. A control and monitoring signal line 14 for connection with the tap driving circuit 2, axial angle signal line 15 for connection with a rotary encoder 9 provided on a driving shaft 8 of the loaded tap changer and an optical cable 7 for connection with an upper controlling board are connected to the computing circuit 3.

5. 发明专利

JP2734207B2 失效
公开(公告)号：JP2734207B2
公开(公告)日：1998-03-30
申请号：JP366791
申请日：1991-01-17
申请人： HITACHI SEISAKUSHO KK
发明人： CHIBA TOMIO , KIDO MITSUYASU , KAWAKAMI JUNZO , HIRASAWA KUNIO , MATSUI YOSHIAKI
IPC分类号： H02J3/00 , G05B13/02 , H02J3/12 , H02J3/18 , H02P13/06

6. 发明专利

JPH08191542A POWER SAVING TRANSFORMER WITH STEP-UP AND STEP-DOWN AUTOMATIC SWITCHING GEAR 失效
公开(公告)号：JPH08191542A
公开(公告)日：1996-07-23
申请号：JP180495
申请日：1995-01-10
申请人： AIKO DENKI KK
发明人： SHIMAZU KUNIO , SHIMAZU TOMOYUKI
IPC分类号： H02H3/24 , G05F1/20 , H01F29/02 , H01F30/02 , H02J3/12 , H02M5/12 , H02P13/06
摘要： PURPOSE: To automatically control the voltage level within a specified range by a method wherein a plurality of main coils connected to input terminals of an auto-transformer are double-circuit phase-wound around a single-phase core-type core and a plurality of exciting coils are connected in a plurality of combinations between terminals of the main coils and the voltage level of the input terminals turns a plurality of thyristors on and off. CONSTITUTION: Main coils L1, L2 and L5, L6 which are connected to input terminals R, T are double-circuit phase-wound around a single-phase core-type core 9. Between terminals of the main coils L2 and L6, exciting coils L3, L7 and L4, L8, which are wound around the core 9 and are connected in series, are connected in a plurality of combinations. One terminal of a voltage sensor which detects input voltage is connected to input terminals of the main coils L1, L5 and the other is connected to thyristors 1-8 which are connected between the coils. The thyristors 1-8 are turned on and off on the output signals of the voltage sensor and controls the combination of the main coils L1-L8. By this method, the output voltage can be automatically controlled within a specified set level.

7. 发明专利

JPH07107964B2 失效
公开(公告)号：JPH07107964B2
公开(公告)日：1995-11-15
申请号：JP12093186
申请日：1986-05-26
IPC分类号： H03G3/02 , H02M11/00 , H02P13/06 , H03F3/68 , H03G3/10

8. 发明专利

JPS58147926A ON-LOAD TAP CHANGER 失效
公开(公告)号：JPS58147926A
公开(公告)日：1983-09-02
申请号：JP2894682
申请日：1982-02-26
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KUBO MOTOHARU , TONEGAWA AKIRA
IPC分类号： H01F29/04 , H01H33/00 , H02H7/055 , H02P13/06

9. 实用新型

JPS5793128U 失效
公开(公告)号：JPS5793128U
公开(公告)日：1982-06-08
申请号：JP17062480
申请日：1980-11-28
IPC分类号： H01F29/04 , G05F1/14 , H02P13/06

10. 实用新型

JPS5647690Y2 失效
公开(公告)号：JPS5647690Y2
公开(公告)日：1981-11-09
申请号：JP10635076
申请日：1976-08-09
IPC分类号： G05F1/24 , G05F1/20 , H02P13/06

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式