DIELECTRIC DETERIORATION DIAGNOSING METHOD OF ELECTRIC DEVICE

• Main Authors: HOSONO NAOKO, HAMAMURA TAKEHIRO
• Format: Patent
• Language: English
• Published: 04.11.2005
• Edition: 7
• 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

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