JPS5322782A - Weld flaw detector for tank shield plate in tra nsformer - Google Patents

Weld flaw detector for tank shield plate in tra nsformer

Info

Publication number
JPS5322782A
JPS5322782A JP9700776A JP9700776A JPS5322782A JP S5322782 A JPS5322782 A JP S5322782A JP 9700776 A JP9700776 A JP 9700776A JP 9700776 A JP9700776 A JP 9700776A JP S5322782 A JPS5322782 A JP S5322782A
Authority
JP
Japan
Prior art keywords
shield plate
flaw detector
tank shield
weld flaw
nsformer
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.)
Pending
Application number
JP9700776A
Other languages
Japanese (ja)
Inventor
Mitsumori Hirano
Takahiro Ueki
Hiroshi Maeda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9700776A priority Critical patent/JPS5322782A/en
Publication of JPS5322782A publication Critical patent/JPS5322782A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To easily detect flaw while transformer is operating, by simultaneously measuring with oscilloscope the phase difference between ultrasonic wave emitted depending on weld crack in shield plate and vibrating direction of tank at the same position as generating position of above ultrasonic wave.
COPYRIGHT: (C)1978,JPO&Japio
JP9700776A 1976-08-16 1976-08-16 Weld flaw detector for tank shield plate in tra nsformer Pending JPS5322782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9700776A JPS5322782A (en) 1976-08-16 1976-08-16 Weld flaw detector for tank shield plate in tra nsformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9700776A JPS5322782A (en) 1976-08-16 1976-08-16 Weld flaw detector for tank shield plate in tra nsformer

Publications (1)

Publication Number Publication Date
JPS5322782A true JPS5322782A (en) 1978-03-02

Family

ID=14180191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9700776A Pending JPS5322782A (en) 1976-08-16 1976-08-16 Weld flaw detector for tank shield plate in tra nsformer

Country Status (1)

Country Link
JP (1) JPS5322782A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136848U (en) * 1983-03-03 1984-09-12 有限会社久一鉄筋 Gripping device for vertical bar suspension
JP2018096706A (en) * 2016-12-08 2018-06-21 ユカインダストリーズ株式会社 Diagnostic method and diagnostic device of internal abnormality and deterioration of transformer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106838A (en) * 1959-12-14 1963-10-15 Lockheed Aircraft Corp Welded joint tester
JPS5022690A (en) * 1973-06-27 1975-03-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106838A (en) * 1959-12-14 1963-10-15 Lockheed Aircraft Corp Welded joint tester
JPS5022690A (en) * 1973-06-27 1975-03-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136848U (en) * 1983-03-03 1984-09-12 有限会社久一鉄筋 Gripping device for vertical bar suspension
JP2018096706A (en) * 2016-12-08 2018-06-21 ユカインダストリーズ株式会社 Diagnostic method and diagnostic device of internal abnormality and deterioration of transformer

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