Title:
THREE-PHASE TRANSFORMER
Document Type and Number:
Japanese Patent JP2019179929
Kind Code:
A
Abstract:
To provide a three-phase transformer in which three phases are balanced, a leakage flux is small, and efficiency is high.SOLUTION: A three-phase transformer includes: a first plate-like iron core and a second plate-like iron core disposed to face each other; a plurality of columnar iron cores of multiples of 3 arranged to connect with the first plate-like iron core or the second plate-like iron core between the first plate-like iron core and the second plate-like iron core, arranged at positions that are rotationally symmetric about an axis equidistant from a central axis of the plurality of columnar iron cores; and a coil including a plurality of primary coils and a plurality of secondary coils each of which is multiple of 3 wound individually around the plurality of columnar iron cores.SELECTED DRAWING: Figure 1
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| JPS5776819 | THREE PHASE TRANSFORMER WITH STABILIZING WINDING |
| WO/1993/019477 | THREE PHASE TRANSFORMER |
Inventors:
CHAO ZHI
MAEDA TAKUYA
MAEDA TAKUYA
Application Number:
JP2019115741A
Publication Date:
October 17, 2019
Filing Date:
June 21, 2019
Export Citation:
Assignee:
FANUC LTD
International Classes:
H01F30/12; H01F27/24; H01F27/245; H01F29/10
Domestic Patent References:
| JPH118138A | 1999-01-12 | |||
| JP2014220435A | 2014-11-20 | |||
| JPS481343Y1 | 1973-01-13 | |||
| JPS4892872A | 1973-12-01 | |||
| JPH08167527A | 1996-06-25 | |||
| JPH09159614A | 1997-06-20 | |||
| JPH10223454A | 1998-08-21 | |||
| JP2011250529A | 2011-12-08 | |||
| JP2016058513A | 2016-04-21 | |||
| JP2013115407A | 2013-06-10 | |||
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Foreign References:
| WO2012137494A1 | 2012-10-11 | |||
| WO2012157053A1 | 2012-11-22 | |||
| CN105529166A | 2016-04-27 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Hirose Shigeki
Shinji Mitsuhashi
Hirose Shigeki