JPS6484162A - Diagnosing device for insulation in hot-line - Google Patents

Diagnosing device for insulation in hot-line

Info

Publication number
JPS6484162A
JPS6484162A JP24224787A JP24224787A JPS6484162A JP S6484162 A JPS6484162 A JP S6484162A JP 24224787 A JP24224787 A JP 24224787A JP 24224787 A JP24224787 A JP 24224787A JP S6484162 A JPS6484162 A JP S6484162A
Authority
JP
Japan
Prior art keywords
insulating layer
color
optical fiber
probe
photodetection
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
JP24224787A
Other languages
Japanese (ja)
Other versions
JP2556055B2 (en
Inventor
Yoshifusa Tsubone
Yoshikatsu Nakamura
Tsutomu Oshiyama
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing Co Ltd
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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP62242247A priority Critical patent/JP2556055B2/en
Publication of JPS6484162A publication Critical patent/JPS6484162A/en
Application granted granted Critical
Publication of JP2556055B2 publication Critical patent/JP2556055B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Testing Relating To Insulation (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

PURPOSE:To correct and update a data base with high reliability by measuring a change in the color of an insulating layer with a photodetection probe which is embedded in the insulating layer or fitted to the outer periphery of the insulating layer. CONSTITUTION:A main insulating layer 3 is impregnated with epoxy resin after the photodetection probe 4 is set. Then the illumination optical fiber 5 of the probe 5 is connected to a standard light source 6 and the photodetection optical fiber is connected to a photoelectric converting element 8, whose output is inputted to a color specification arithmetic part 9. Further, the output of a function generation part 10 stored with a change in color and the deterioration degree of the insulating layer which are found preliminarily and the output of the arithmetic part 9 are inputted to a deterioration degree and remaining life arithmetic part 11, whose output is displayed on a warning and display part 12. Then when the temperature of a coil rises by the operation of equipment, the epoxy resin with which the main insulating layer 3 is impregnated changes its color. This color change state is detected by irradiating the main insulating layer 3 with light from the light source 6 through the optical fiber 5 and photodetecting its reflected light by the element 8.
JP62242247A 1987-09-26 1987-09-26 Hot wire insulation diagnostic device Expired - Lifetime JP2556055B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242247A JP2556055B2 (en) 1987-09-26 1987-09-26 Hot wire insulation diagnostic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242247A JP2556055B2 (en) 1987-09-26 1987-09-26 Hot wire insulation diagnostic device

Publications (2)

Publication Number Publication Date
JPS6484162A true JPS6484162A (en) 1989-03-29
JP2556055B2 JP2556055B2 (en) 1996-11-20

Family

ID=17086432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242247A Expired - Lifetime JP2556055B2 (en) 1987-09-26 1987-09-26 Hot wire insulation diagnostic device

Country Status (1)

Country Link
JP (1) JP2556055B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002025839A (en) * 2000-07-04 2002-01-25 Fuji Electric Co Ltd Degradation diagnosis device for oil-filled electric equipment
KR101012462B1 (en) * 2008-09-09 2011-02-08 한국전력공사 Diagnosis of Mold Transformer Epoxy Insulation by Ultrasonic Scanning
JPWO2009130772A1 (en) * 2008-04-24 2011-08-11 東芝三菱電機産業システム株式会社 Deterioration diagnosis device for induction heating device
JP2019537009A (en) * 2017-03-29 2019-12-19 ミツビシ・エレクトリック・アールアンドディー・センター・ヨーロッパ・ビーヴィＭｉｔｓｕｂｉｓｈｉ Ｅｌｅｃｔｒｉｃ Ｒ＆Ｄ Ｃｅｎｔｒｅ Ｅｕｒｏｐｅ Ｂ．Ｖ． Apparatus and method for monitoring power semiconductor die

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002025839A (en) * 2000-07-04 2002-01-25 Fuji Electric Co Ltd Degradation diagnosis device for oil-filled electric equipment
JPWO2009130772A1 (en) * 2008-04-24 2011-08-11 東芝三菱電機産業システム株式会社 Deterioration diagnosis device for induction heating device
JP5012997B2 (en) * 2008-04-24 2012-08-29 東芝三菱電機産業システム株式会社 Deterioration diagnosis device for induction heating device
KR101012462B1 (en) * 2008-09-09 2011-02-08 한국전력공사 Diagnosis of Mold Transformer Epoxy Insulation by Ultrasonic Scanning
JP2019537009A (en) * 2017-03-29 2019-12-19 ミツビシ・エレクトリック・アールアンドディー・センター・ヨーロッパ・ビーヴィＭｉｔｓｕｂｉｓｈｉ Ｅｌｅｃｔｒｉｃ Ｒ＆Ｄ Ｃｅｎｔｒｅ Ｅｕｒｏｐｅ Ｂ．Ｖ． Apparatus and method for monitoring power semiconductor die

Also Published As

Publication number Publication date
JP2556055B2 (en) 1996-11-20

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