Title:
INSULATION TREATMENT FOR INSULATOR
Document Type and Number:
Japanese Patent JP3645471
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide insulation treatment for insulator by which the reliability of the insulation property of an insulator can be improved, without increasing the transportation weight or the on-site work time of the insulator.
SOLUTION: The dielectric strength of the insulator is improved by forcibly substituting oil with a gas, having high dielectric strength instead of air at deoiling of the insulator, so that composite insulation of insulating oil and SF6 gas may be obtained in the insulator, and the size and weight of a transformer can be reduced or the capacity of the transformer can be increased.
Inventors:
Kashiwakura Masaru
Shigekatsu Sato
Shigekatsu Sato
Application Number:
JP2000206850A
Publication Date:
May 11, 2005
Filing Date:
July 04, 2000
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H01F27/02; H01F41/00; (IPC1-7): H01F41/00; H01F27/02
Domestic Patent References:
| JP49097219A | ||||
| JP11329854A |
Attorney, Agent or Firm:
Katsuo Ogawa
Kyosuke Tanaka
Takashi Sasaki
Kyosuke Tanaka
Takashi Sasaki