Title:
GAS INSULATED TRANSFORMER CORE
Document Type and Number:
Japanese Patent JPH07201598
Kind Code:
A
Abstract:
PURPOSE: To provide a gas insulated transformer high in core cooling efficiency with an insulation gas, easy in production and little in vibration noise.
CONSTITUTION: A transformer core has a cooling duct formed by laminating Si steel sheets to form cooling insulation fluid passages in its laminating direction. A three-dimensional fiber fabric composed of plane fibers and thickness direction fibers is impregnated with an epoxy resin or polyester resin and cured to form a plate having hollow parts 1a and a cooling dust 1 is composed of this plate and disposed between layers of a laminate of magnetic steel sheets.
Inventors:
SUGIYAMA MITSURU
Application Number:
JP37994A
Publication Date:
August 04, 1995
Filing Date:
January 07, 1994
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H01F27/20; H01F27/24; H01F27/245; H01F30/00; (IPC1-7): H01F27/24; H01F27/20; H01F27/245; H01F30/00
Attorney, Agent or Firm:
Fujiya Shiga (1 person outside)