DIELECTRIC DETERIORATION DIAGNOSING METHOD OF ELECTRIC DEVICE

PROBLEM TO BE SOLVED: To provide a dielectric deterioration diagnosing method of an electric device capable of simply and properly grasping the degree of hydrolysis by an efficient procedure. SOLUTION: When the dielectric deterioration of a material to be tested is diagnosed from the amount of the h...

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Bibliographic Details
Main Authors HOSONO NAOKO, HAMAMURA TAKEHIRO
Format Patent
LanguageEnglish
Published 04.11.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MAGNETS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TESTING
TRANSFORMERS
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Summary:PROBLEM TO BE SOLVED: To provide a dielectric deterioration diagnosing method of an electric device capable of simply and properly grasping the degree of hydrolysis by an efficient procedure. SOLUTION: When the dielectric deterioration of a material to be tested is diagnosed from the amount of the hydrolytic product of the material to be tested due to an accelerated test, the degree of advance of dielectric deterioration is judged on the basis of each of the size of the surface precipitate of the material to be tested to an accelerated test time, the acid production concentration of organic matter per a unit sample, absorbancy ratio and a pH value or a combination of an arbitrary number of the measured values. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20040122399