Title:
DIAGNOSTIC METHOD AND APPARATUS FOR OIL-FILLED ELECTRIC APPARATUS
Document Type and Number:
Japanese Patent JP2669262
Kind Code:
B2
Abstract:
PURPOSE: To make a diagnosis of an oil-filled electric apparatus, by diagnosing a life of an insulating paper used in the oil-filled electric apparatus.
CONSTITUTION: To diagnose a life of an insulating paper through a measured ratio of hydroxymethylfurfural contained in oil and insulating paper to furfural contained in the oil and insulating paper in an oil-filled electric apparatus.
Inventors:
Sadao Namba
Miyamoto
Miyamoto
Application Number:
JP11347192A
Publication Date:
October 27, 1997
Filing Date:
May 06, 1992
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H01F27/00; H01F27/12; (IPC1-7): H01F27/00; H01F27/12
Attorney, Agent or Firm:
Kaneo Miyata (3 outside)