Title:
STATIONARY INDUCTION APPARATUS
Document Type and Number:
Japanese Patent JP2020120021
Kind Code:
A
Abstract:
To provide a stationary induction apparatus having improved heat transfer performance by forming a suitable surface roughness on a surface of a tank.SOLUTION: The stationary induction apparatus has an iron core, a coil wound around the iron core, insulating oil for covering the iron core and the coil, and a tank for storing the insulating oil. Both or one of surfaces outside or inside the tank has a surface roughness of 20 μm or more.SELECTED DRAWING: Figure 1
Inventors:
OTAKE ATSUSHI
SHINOHARA MAKOTO
SHINOHARA MAKOTO
Application Number:
JP2019010976A
Publication Date:
August 06, 2020
Filing Date:
January 25, 2019
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD
International Classes:
H01F27/02; H01F27/12
Domestic Patent References:
| JPH0160511U | 1989-04-17 | |||
| JP2019009160A | 2019-01-17 | |||
| JPS58219713A | 1983-12-21 | |||
| JP2000348946A | 2000-12-15 | |||
| JP2012114451A | 2012-06-14 | |||
| JP2008182161A | 2008-08-07 |
Foreign References:
| WO2007029724A1 | 2007-03-15 |
Attorney, Agent or Firm:
Aoritsu patent business corporation