IP Library Granted Patent US 9,947,453
Granted Patent B2
US 9,947,453 · App. 15/018,945 · Granted Apr 17, 2018

Stationary induction electric apparatus

Inventors: Yasunori Ono (Tokyo, JP); Akira Nishimizu (Tokyo, JP); Naoya Miyamoto (Tokyo, JP); Kohei Yamaguchi (Tokyo, JP); Akira Yamagishi (Tokyo, JP)
Assignee: Hitachi, Ltd.
H01F27/12H01F27/322H01F27/323
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Quick Facts
Patent No.
US 9,947,453
App. No.
15/018,945
Granted
Apr 17, 2018
Kind
B2
Abstract

A stationary induction electric apparatus includes an iron core having legs of core and yokes of core; windings wound around the legs of core; coolant for cooling the windings; a cylindrical insulation structure that forms a flow of the coolant around the windings; baffle members alternately provided on the inner wall side and the outer wall side of the cylindrical insulation structure; and adjustment members for constricting the flow of the coolant. The adjustment members are provided on the same side of the respective baffle members and on the respective baffle members.

Claims (12)

1. A stationary induction electric apparatus comprising:

an iron core having legs of core and yokes of core;

windings wound around the legs of core;

coolant for cooling the windings;

a cylindrical insulation structure that forms a flow of the coolant around the windings;

baffle members alternately provided on the inner wall side and the outer wall side of the cylindrical insulation structure;

a plurality of inner vertical spacers arranged between the cylindrical insulation structure and the windings;

adjustment members for constricting the flow of the coolant, the adjustment members being provided on the same side of the respective baffle members and on the respective baffle members;

wherein each of the adjustment members includes:

an adjustment member base having a circular shape and being arranged between the cylindrical insulation structure and the windings; and

a gap keeping member for adjusting a gap between the adjustment member base and the windings or a gap between the adjustment member base and the cylindrical insulation structure.

2. The stationary induction electric apparatus according to claim 1 , wherein each of the baffle members is a blockage member.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 8, 2024
From: HITACHI, LTD.
To: HITACHI ENERGY LTD
Reel/Frame 069534/0519 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2016
From: ONO, YASUNORI; NISHIMIZU, AKIRA; MIYAMOTO, NAOYA; YAMAGUCHI, KOHEI; YAMAGISHI, AKIRA
To: HITACHI, LTD.
Reel/Frame 037694/0007 →
Priority Claims (1)
JP 2015-031246 · Feb 20, 2015 · national
Continuity (1)
Related Publication 20160247621A1 · Aug 25, 2016