FR2428308A1 - Transformateur differentiel de relais de protection d'installation electrique - Google Patents
Transformateur differentiel de relais de protection d'installation electriqueInfo
- Publication number
- FR2428308A1 FR2428308A1 FR7817113A FR7817113A FR2428308A1 FR 2428308 A1 FR2428308 A1 FR 2428308A1 FR 7817113 A FR7817113 A FR 7817113A FR 7817113 A FR7817113 A FR 7817113A FR 2428308 A1 FR2428308 A1 FR 2428308A1
- Authority
- FR
- France
- Prior art keywords
- differential transformer
- electrical protection
- protection relays
- conductors
- torus
- 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.)
- Withdrawn
Links
- 239000004020 conductor Substances 0.000 abstract 3
- 238000009792 diffusion process Methods 0.000 abstract 1
Classifications
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2895—Windings disposed upon ring cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
- H01F2038/305—Constructions with toroidal magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
- H01H2083/148—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer with primary windings formed of rigid copper conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
- Protection Of Transformers (AREA)
Abstract
Pour optimiser le prix de revient du tore magnétique d'un transformateur différentiel, on réduit son volume en occupant dans les meilleures conditions le volume central : une seule spire par conducteur primaire, réduction de la section des conducteurs, avec parties voisines assurant la diffusion de la chaleur, et conformation en secteur circulaire des conducteurs au centre du tore. On obtient un gain important sur l'élément le plus coûteux d'un relais.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7817113A FR2428308A1 (fr) | 1978-06-08 | 1978-06-08 | Transformateur differentiel de relais de protection d'installation electrique |
US06/045,867 US4287545A (en) | 1978-06-08 | 1979-06-06 | Differential transformer |
DE19792923096 DE2923096A1 (de) | 1978-06-08 | 1979-06-07 | Schutzrelais-ausgleichsuebertrager fuer elektrische anlagen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7817113A FR2428308A1 (fr) | 1978-06-08 | 1978-06-08 | Transformateur differentiel de relais de protection d'installation electrique |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2428308A1 true FR2428308A1 (fr) | 1980-01-04 |
Family
ID=9209228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7817113A Withdrawn FR2428308A1 (fr) | 1978-06-08 | 1978-06-08 | Transformateur differentiel de relais de protection d'installation electrique |
Country Status (3)
Country | Link |
---|---|
US (1) | US4287545A (fr) |
DE (1) | DE2923096A1 (fr) |
FR (1) | FR2428308A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT372549B (de) * | 1980-04-16 | 1983-10-25 | Felten & Guilleaume Ag Oester | Fehlerstromschutzschalter ohne summenstromwandler |
US4870527A (en) * | 1986-05-01 | 1989-09-26 | Emerson Electric Company | Ground fault protection system |
EP0550403B1 (fr) * | 1987-08-07 | 1999-05-12 | Mitsui Chemicals, Inc. | Appareil pour évaluer l'état d'isolation |
DE102018215576A1 (de) | 2018-09-13 | 2020-03-19 | Bayerische Motoren Werke Aktiengesellschaft | Stromkompensierte Drossel, Filter, Hochvoltbordnetz sowie Kraftfahrzeug |
DE102019215514A1 (de) * | 2019-10-10 | 2021-04-15 | Robert Bosch Gmbh | Gleichtaktdrossel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1083921B (de) * | 1958-12-18 | 1960-06-23 | Licentia Gmbh | Ringkernstromwandler mit zusammengesetzter Primaerwicklung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7429C (de) * | L. P. COHEN, Ingenieur, in Hannover | Riemenbinder | ||
US687141A (en) * | 1901-07-29 | 1901-11-19 | Gen Electric | Current-transformer. |
US1022880A (en) * | 1908-09-11 | 1912-04-09 | Gen Electric | Current-transformer. |
US1986884A (en) * | 1934-10-11 | 1935-01-08 | Peter W Fassler | Welding transformer |
US2883603A (en) * | 1956-05-24 | 1959-04-21 | Ite Circuit Breaker Ltd | Cancellation of break step current for contact converters |
BE568986A (fr) * | 1957-07-24 | |||
US3725741A (en) * | 1971-06-30 | 1973-04-03 | Westinghouse Electric Corp | Differential transformer mounting arrangement particulary for ground fault interrupter apparatus |
US3716806A (en) * | 1971-08-19 | 1973-02-13 | M Zelenz | Signal coupling apparatus utilizing hybrid transformer |
US4021729A (en) * | 1975-12-03 | 1977-05-03 | I-T-E Imperial Corporation | Cross-field ground fault sensor |
CA1096451A (fr) * | 1976-08-19 | 1981-02-24 | William H. Robins | Amplificateur magnetique a enroulement coaxial |
-
1978
- 1978-06-08 FR FR7817113A patent/FR2428308A1/fr not_active Withdrawn
-
1979
- 1979-06-06 US US06/045,867 patent/US4287545A/en not_active Expired - Lifetime
- 1979-06-07 DE DE19792923096 patent/DE2923096A1/de not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1083921B (de) * | 1958-12-18 | 1960-06-23 | Licentia Gmbh | Ringkernstromwandler mit zusammengesetzter Primaerwicklung |
Also Published As
Publication number | Publication date |
---|---|
DE2923096A1 (de) | 1979-12-13 |
US4287545A (en) | 1981-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1481327A (en) | Electrical terminal | |
BE838542A (fr) | Compositions d'amelioration du point de l'ecoulement de carburants | |
FR2428308A1 (fr) | Transformateur differentiel de relais de protection d'installation electrique | |
AU2342177A (en) | Loudspeaker. ribbed cone and bearing supported voice coil | |
GB1458501A (en) | Service columns | |
IT8223106A0 (it) | Rele' di potenza con commutazione assistita. | |
ES489452A1 (es) | Dispositivo con dos obturadores en serie para una conduccionhidraulica de alta caida | |
ES8100896A1 (es) | Perfeccionamientos en la fabricacion de filtros con elemen- tos filtrantes verticales | |
EP0391711A3 (fr) | Copolymères d'anhydride maléique | |
BE809255A (fr) | Installation d'actionnement a distance avec au moins une centrale et des sous-stations | |
IE810318L (en) | Underwater pipe support | |
FR2358762A1 (fr) | Dispositif a ciel ouvert de distribution de l'electricite a haute tension | |
JPS57114213A (en) | On-load tap changer | |
USD223452S (en) | Electrical switch | |
KITAGAWA | The structure and changing patterns of the central quarters within the cities | |
JPS537105A (en) | Transmission relay exchange system for aural and facsimile signals | |
JPS5378948A (en) | Structure of connecting metal plate and metal pipe | |
HAMAJIMA | Taste Interrelationships (Part 5) Relationship between Sweetness and Bitterness | |
JPS51138801A (en) | Field coil of convex pole electric rotater | |
GARRIOTT | THE STORY OF WELDED COPPER AND BRONZE ART FORMS | |
Chung et al. | Purification and Characterization of Streptomyces chibaensis Inulase | |
FR2423043A1 (fr) | Transformateur differentiel, notamment pour disjoncteurs de protection contre les courants de defaut | |
Saito | The Developing Tendensy of the Advanced Gas Turbine | |
JPS5436920A (en) | Speaker | |
JPS61108033U (fr) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |