FR2402877A1 - Detector and locator for electrical discharges - uses acoustic waveguides connected to piezoceramic element in inductive enclosed windings - Google Patents
Detector and locator for electrical discharges - uses acoustic waveguides connected to piezoceramic element in inductive enclosed windingsInfo
- Publication number
- FR2402877A1 FR2402877A1 FR7834375A FR7834375A FR2402877A1 FR 2402877 A1 FR2402877 A1 FR 2402877A1 FR 7834375 A FR7834375 A FR 7834375A FR 7834375 A FR7834375 A FR 7834375A FR 2402877 A1 FR2402877 A1 FR 2402877A1
- Authority
- FR
- France
- Prior art keywords
- detector
- inductive
- locator
- piezoceramic element
- uses acoustic
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Testing Relating To Insulation (AREA)
- Gas-Insulated Switchgears (AREA)
- Protection Of Transformers (AREA)
- Elimination Of Static Electricity (AREA)
- Electrostatic Separation (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
a. Dispositif pour détecter et pour localiser les sources d'effluves électriques dans les appareils électriques de haute tension. b. Appareil pour détecter et localiser les points où se produisent des effluves électriques dans les transformateurs de haute tension comportant des cuves (ou dans des appareillages électriques de haute tension analogues) qui utilisent des guides d'ondes acoustiques pour transmettre les vibrations engendrées par les effluves à un détecteur placé à l'extérieur de la cuve. Des tiges en verre pyrex ou en fibres de verre enrobées d'une résine époxyde et des tubes de plexiglas peuvent avantageusement être utilisés comme guides d'ondes et répondent à des bandes de fréquences différentes. c. Concerne la sécurité des installations électriques de haute tension et notamment des transformateurs à huile.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/858,034 US4158168A (en) | 1977-12-06 | 1977-12-06 | Acoustic waveguides for sensing and locating corona discharges |
US05/858,054 US4158169A (en) | 1977-12-06 | 1977-12-06 | Corona testing apparatus including acoustic waveguides for transmitting acoustic emissions from electrical apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2402877A1 true FR2402877A1 (en) | 1979-04-06 |
FR2402877B1 FR2402877B1 (fr) | 1984-03-02 |
Family
ID=27127438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7834375A Granted FR2402877A1 (en) | 1977-12-06 | 1978-12-06 | Detector and locator for electrical discharges - uses acoustic waveguides connected to piezoceramic element in inductive enclosed windings |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5857056B2 (fr) |
KR (1) | KR820001828B1 (fr) |
BE (1) | BE872510A (fr) |
ES (1) | ES475710A1 (fr) |
FR (1) | FR2402877A1 (fr) |
NO (1) | NO158157C (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1005721C2 (nl) * | 1997-04-03 | 1998-10-07 | Kema Nv | Werkwijze en inrichting voor het detecteren van partiële ontladingen. |
FR2786274A1 (fr) * | 1998-11-25 | 2000-05-26 | Alstom Technology | Procede et dispositif de detection d'un arc interne dans une liaison electrique sous enveloppe metallique |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6038458U (ja) * | 1983-08-24 | 1985-03-16 | 三菱電機株式会社 | 回路しや断器 |
JPS6039550U (ja) * | 1983-08-25 | 1985-03-19 | 三菱電機株式会社 | 回路しや断器 |
JPS60107232A (ja) * | 1983-11-15 | 1985-06-12 | 三菱電機株式会社 | 回路しや断器 |
JPS60119052A (ja) * | 1983-11-30 | 1985-06-26 | 三菱電機株式会社 | 回路開閉器用補助接点装置 |
JPH0142923Y2 (fr) * | 1984-09-25 | 1989-12-14 | ||
JPS6175047U (fr) * | 1984-10-23 | 1986-05-21 | ||
JPS6237865U (fr) * | 1985-08-27 | 1987-03-06 | ||
JPH0430757Y2 (fr) * | 1987-03-28 | 1992-07-24 | ||
JP2012154753A (ja) * | 2011-01-26 | 2012-08-16 | Mitsubishi Electric Corp | 放電発生位置推定装置及び放電発生位置推定装置を備えた静止誘導器 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2402544A (en) * | 1943-03-15 | 1946-06-25 | Pacific Electric Mfg Corp | High voltage current indicating and insulating means |
US3331023A (en) * | 1964-03-09 | 1967-07-11 | Sigma Instruments Inc | Sensing and measuring device for high voltage power lines |
US3597683A (en) * | 1970-04-24 | 1971-08-03 | Shigebumi Saito | Current transformer utilizing an electromagnetic wave, a faraday rotator, circular waveguides, horn antennae, and mode converters to measure current in a high voltage transmission line |
US3728619A (en) * | 1971-06-21 | 1973-04-17 | Westinghouse Electric Corp | Acoustical corona locator having rotatable and pivotable transducers |
CA933646A (en) * | 1970-06-16 | 1973-09-11 | Canadian General Electric Company Limited | Ultrasonic leak detection |
US3777189A (en) * | 1972-05-04 | 1973-12-04 | Westinghouse Electric Corp | Acoustic energy transmission device |
US3936348A (en) * | 1973-02-05 | 1976-02-03 | Wesley M. Rohrer | Method and apparatus for detection of nuclear fuel rod failures |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4317445Y1 (fr) * | 1966-04-04 | 1968-07-19 |
-
1978
- 1978-11-30 KR KR7803635A patent/KR820001828B1/ko active
- 1978-12-04 BE BE192128A patent/BE872510A/fr not_active IP Right Cessation
- 1978-12-04 NO NO784052A patent/NO158157C/no unknown
- 1978-12-05 ES ES475710A patent/ES475710A1/es not_active Expired
- 1978-12-06 FR FR7834375A patent/FR2402877A1/fr active Granted
- 1978-12-06 JP JP53150132A patent/JPS5857056B2/ja not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2402544A (en) * | 1943-03-15 | 1946-06-25 | Pacific Electric Mfg Corp | High voltage current indicating and insulating means |
US3331023A (en) * | 1964-03-09 | 1967-07-11 | Sigma Instruments Inc | Sensing and measuring device for high voltage power lines |
US3597683A (en) * | 1970-04-24 | 1971-08-03 | Shigebumi Saito | Current transformer utilizing an electromagnetic wave, a faraday rotator, circular waveguides, horn antennae, and mode converters to measure current in a high voltage transmission line |
CA933646A (en) * | 1970-06-16 | 1973-09-11 | Canadian General Electric Company Limited | Ultrasonic leak detection |
US3728619A (en) * | 1971-06-21 | 1973-04-17 | Westinghouse Electric Corp | Acoustical corona locator having rotatable and pivotable transducers |
US3777189A (en) * | 1972-05-04 | 1973-12-04 | Westinghouse Electric Corp | Acoustic energy transmission device |
US3936348A (en) * | 1973-02-05 | 1976-02-03 | Wesley M. Rohrer | Method and apparatus for detection of nuclear fuel rod failures |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1005721C2 (nl) * | 1997-04-03 | 1998-10-07 | Kema Nv | Werkwijze en inrichting voor het detecteren van partiële ontladingen. |
WO1998044356A1 (fr) * | 1997-04-03 | 1998-10-08 | N.V. Kema | Procede et dispositif de detection de decharges partielles |
US6323655B1 (en) | 1997-04-03 | 2001-11-27 | N.V. Kema | Method and device for detecting partial discharges |
FR2786274A1 (fr) * | 1998-11-25 | 2000-05-26 | Alstom Technology | Procede et dispositif de detection d'un arc interne dans une liaison electrique sous enveloppe metallique |
EP1004884A1 (fr) * | 1998-11-25 | 2000-05-31 | Alstom Holdings | Procédé et dispositif de détection d'un arc interne dans une liaison électrique sous enveloppe métallique |
US6481280B1 (en) | 1998-11-25 | 2002-11-19 | Alstom Holdings | Method and a device for detecting an internal arc in a metal-clad electrical link |
US6581462B2 (en) | 1998-11-25 | 2003-06-24 | Alstom Holdings | Method and a device for detecting an internal arc in a metal-clad electrical link |
Also Published As
Publication number | Publication date |
---|---|
ES475710A1 (es) | 1980-03-01 |
NO158157B (no) | 1988-04-11 |
FR2402877B1 (fr) | 1984-03-02 |
BE872510A (fr) | 1979-06-05 |
KR820001828B1 (ko) | 1982-10-12 |
JPS5490545A (en) | 1979-07-18 |
NO158157C (no) | 1988-07-20 |
JPS5857056B2 (ja) | 1983-12-17 |
NO784052L (no) | 1979-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |