JPS5618765A - Insulation life estimation of electric appliance - Google Patents

Insulation life estimation of electric appliance

Info

Publication number
JPS5618765A
JPS5618765A JP9628479A JP9628479A JPS5618765A JP S5618765 A JPS5618765 A JP S5618765A JP 9628479 A JP9628479 A JP 9628479A JP 9628479 A JP9628479 A JP 9628479A JP S5618765 A JPS5618765 A JP S5618765A
Authority
JP
Japan
Prior art keywords
insulation
atom
electric appliance
resin
appliance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9628479A
Other languages
Japanese (ja)
Other versions
JPS6131823B2 (en
Inventor
Mitsuyo Asahi
Junzo Enomoto
Aiichiro Hashizume
Shigeo Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9628479A priority Critical patent/JPS5618765A/en
Priority to GB8108192A priority patent/GB2067287B/en
Priority to DE803049732A priority patent/DE3049732A1/en
Priority to PCT/JP1980/000161 priority patent/WO1981000306A1/en
Priority to US06/253,765 priority patent/US4396719A/en
Priority to EP80901332A priority patent/EP0036023B1/en
Publication of JPS5618765A publication Critical patent/JPS5618765A/en
Publication of JPS6131823B2 publication Critical patent/JPS6131823B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Testing Relating To Insulation (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

PURPOSE: To estimate the degree of deterioration in the insulation of the electric appliances by utilizing the behavior of the number of hydrogen atom per the number of carbon atom of the monitoring material at nondestructive testing.
CONSTITUTION: Proper number of resin pieces made as the monitoring material using the insulated resin the same as that composing the insulation of the electric appliance to be measured is incorporated into the electric appliance prior to the start of the operation in such a manner as to be removable. At an appropriate time interval, for example, the resin pieces are picked up one at a time at a proper timing to measure the number of hydrogen atom and the number of carbon atom with an element analyser so that the ratio between the two numbers of atom is calculated. In this manner, variations in the ratio of the two numbers of atom in the insulation resin are determined during the operation time to estimate the degree of the deterioration of the appliance from the relation between the drop in the insulation breakdown voltage accompanied by the heat deterioration precalculated by use of the model of the same insulation arrangement as that in the actual appliance and the variations.
COPYRIGHT: (C)1981,JPO&Japio
JP9628479A 1979-07-25 1979-07-25 Insulation life estimation of electric appliance Granted JPS5618765A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP9628479A JPS5618765A (en) 1979-07-25 1979-07-25 Insulation life estimation of electric appliance
GB8108192A GB2067287B (en) 1979-07-25 1980-07-18 Method of estimating life of insulation for electric device using resin insulator
DE803049732A DE3049732A1 (en) 1979-07-25 1980-07-18 Method of estimating life of insulation for electric device using resin insulator
PCT/JP1980/000161 WO1981000306A1 (en) 1979-07-25 1980-07-18 Method of estimating life of insulation for electric device using resin insulator
US06/253,765 US4396719A (en) 1979-07-25 1980-07-18 Method of estimating the insulation life of a resin insulator
EP80901332A EP0036023B1 (en) 1979-07-25 1981-02-09 A method of estimating the insulation life of an electrical appliance incorporating a resin insulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9628479A JPS5618765A (en) 1979-07-25 1979-07-25 Insulation life estimation of electric appliance

Publications (2)

Publication Number Publication Date
JPS5618765A true JPS5618765A (en) 1981-02-21
JPS6131823B2 JPS6131823B2 (en) 1986-07-23

Family

ID=14160799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9628479A Granted JPS5618765A (en) 1979-07-25 1979-07-25 Insulation life estimation of electric appliance

Country Status (1)

Country Link
JP (1) JPS5618765A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652394A (en) * 1994-04-08 1997-07-29 Nippon Steel Corporation Stress sensor fabricated from a material having precipitated granular carbides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652394A (en) * 1994-04-08 1997-07-29 Nippon Steel Corporation Stress sensor fabricated from a material having precipitated granular carbides

Also Published As

Publication number Publication date
JPS6131823B2 (en) 1986-07-23

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