SE438734B - Sett att detektera forekomsten av fremmande partiklar i en gastet, elektrisk anordning - Google Patents

Sett att detektera forekomsten av fremmande partiklar i en gastet, elektrisk anordning

Info

Publication number
SE438734B
SE438734B SE7900453A SE7900453A SE438734B SE 438734 B SE438734 B SE 438734B SE 7900453 A SE7900453 A SE 7900453A SE 7900453 A SE7900453 A SE 7900453A SE 438734 B SE438734 B SE 438734B
Authority
SE
Sweden
Prior art keywords
tank
ultrasonic waves
foreign particles
voltage
particle
Prior art date
Application number
SE7900453A
Other languages
English (en)
Swedish (sv)
Other versions
SE7900453L (sv
Inventor
S Menju
K Takahashi
E Haginomori
Y Murakami
E Zaima
Original Assignee
Tokyo Shibaura Electric Co
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
Priority claimed from JP371178A external-priority patent/JPS5497481A/ja
Priority claimed from JP371278A external-priority patent/JPS5497482A/ja
Application filed by Tokyo Shibaura Electric Co filed Critical Tokyo Shibaura Electric Co
Publication of SE7900453L publication Critical patent/SE7900453L/xx
Publication of SE438734B publication Critical patent/SE438734B/sv

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/26—Means for detecting the presence of an arc or other discharge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Installation Of Bus-Bars (AREA)
  • Testing Relating To Insulation (AREA)
SE7900453A 1978-01-19 1979-01-18 Sett att detektera forekomsten av fremmande partiklar i en gastet, elektrisk anordning SE438734B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP371178A JPS5497481A (en) 1978-01-19 1978-01-19 Detecting method of intermixed foreign matter in gas tight electric apparatus
JP371278A JPS5497482A (en) 1978-01-19 1978-01-19 Detecting method of intermixed foreign matter in gas tight electric apparatus

Publications (2)

Publication Number Publication Date
SE7900453L SE7900453L (sv) 1979-07-20
SE438734B true SE438734B (sv) 1985-04-29

Family

ID=26337345

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7900453A SE438734B (sv) 1978-01-19 1979-01-18 Sett att detektera forekomsten av fremmande partiklar i en gastet, elektrisk anordning

Country Status (5)

Country Link
US (1) US4231258A (cs)
CH (1) CH638314A5 (cs)
DE (1) DE2900739B2 (cs)
FR (1) FR2415297A1 (cs)
SE (1) SE438734B (cs)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708188C2 (de) * 1987-03-13 1998-10-29 Hergeth Hubert A Verfahren zur Feststellung von Fremdteilen in einer Textilfaser-Aufbereitungsanlage
JP2641588B2 (ja) * 1990-03-09 1997-08-13 株式会社日立製作所 電力機器およびその異常標定方法
DE9420199U1 (de) * 1994-12-07 1995-02-09 Siemens AG, 80333 München Metallgekapselte Hochspannungsschaltanlage
FR2868845B1 (fr) * 2004-04-13 2006-05-26 Areva T & D Sa Procede de detection et de localisation de source de decharge partielle dans un appareil electrique
JP5135129B2 (ja) * 2008-08-29 2013-01-30 株式会社東芝 ガス絶縁装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170534B (de) * 1962-10-16 1964-05-21 Licentia Gmbh Verfahren zur Ortung von Entladungsstellen bei der Wechselspannungspruefung von Trans-formatoren u. dgl.
US3262515A (en) * 1963-07-12 1966-07-26 John J Drum Apparatus for locating arcs in waveguides
FR1525928A (fr) * 1966-12-14 1968-05-24 Gen Electric Dispositif de contrôle et de localisation de défaut d'isolement
US3505597A (en) * 1967-12-13 1970-04-07 Westinghouse Electric Corp Corona testing apparatus including an oscilloscope and mechanical to electrical transducers having signal isolating means therebetween
US3612992A (en) * 1969-09-30 1971-10-12 Westinghouse Electric Corp Corona testing apparatus including energy storage means for indicating time difference between corona signals
US3622872A (en) * 1970-04-16 1971-11-23 Westinghouse Electric Corp Methods and apparatus for detecting and locating corona discharge in high-voltage, fluid-filled electrical inductive apparatus
US4158169A (en) * 1977-12-06 1979-06-12 Westinghouse Electric Corp. Corona testing apparatus including acoustic waveguides for transmitting acoustic emissions from electrical apparatus

Also Published As

Publication number Publication date
DE2900739B2 (de) 1980-10-09
CH638314A5 (de) 1983-09-15
DE2900739A1 (de) 1979-07-26
US4231258A (en) 1980-11-04
FR2415297B1 (cs) 1983-07-08
SE7900453L (sv) 1979-07-20
FR2415297A1 (fr) 1979-08-17

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