DE69422142D1 - Self-immersed immersed multi-phase electrical transformer - Google Patents
Self-immersed immersed multi-phase electrical transformerInfo
- Publication number
- DE69422142D1 DE69422142D1 DE69422142T DE69422142T DE69422142D1 DE 69422142 D1 DE69422142 D1 DE 69422142D1 DE 69422142 T DE69422142 T DE 69422142T DE 69422142 T DE69422142 T DE 69422142T DE 69422142 D1 DE69422142 D1 DE 69422142D1
- Authority
- DE
- Germany
- Prior art keywords
- immersed
- sensor
- transformer
- power supply
- protection against
- 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.)
- Expired - Lifetime
Links
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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/0241—Structural association of a fuse and another component or apparatus
- H01H2085/0291—Structural association with a current transformer
Landscapes
- Power Engineering (AREA)
- Engineering & Computer Science (AREA)
- Coils Or Transformers For Communication (AREA)
- Housings And Mounting Of Transformers (AREA)
- Cable Accessories (AREA)
- Emergency Protection Circuit Devices (AREA)
- Regulation Of General Use Transformers (AREA)
- Paints Or Removers (AREA)
- Insulating Of Coils (AREA)
- Gas-Insulated Switchgears (AREA)
- Fuses (AREA)
- Protection Of Static Devices (AREA)
- Secondary Cells (AREA)
Abstract
This transformer, with a sealed tank filled with a dielectric cooling liquid, is provided with equipment for self protection against the risk of explosion of the tank, consisting of: * an immersed unit for protection against internal breakdowns degenerating relatively slowly and comprising: - an immersed sensor 1, sensitive to changes of a characteristic of the dielectric liquid which surrounds it, chosen from among those, such as pressure, which react at the site of the sensor practically upon the appearance, at any site in the liquid mass, of a degenerative defect, this sensor delivering an "on or off" signal in response to this alteration. - a non-rearmable polyphase contact breaker 5 between the phases of the power supply and the corresponding primary winding of the transformer. - and a trigger 6 for control of the opening of the contact breaker 5 driven by the signal delivered by the sensor 1, when the amplitude of the said signal exceeds a preestablished safety threshold value: * and a unit for protection against sudden current overloads drawn by the transformer from the power supply means, comprising, on each of the phases of the power supply, an array of fuses 26, 27 mounted in cascade and including staged cutoff thresholds. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9313700A FR2712730B1 (en) | 1993-11-15 | 1993-11-15 | Protected submerged electric transformer. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69422142D1 true DE69422142D1 (en) | 2000-01-20 |
DE69422142T2 DE69422142T2 (en) | 2000-08-24 |
Family
ID=9452921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69422142T Expired - Lifetime DE69422142T2 (en) | 1993-11-15 | 1994-11-14 | Self-immersed immersed multi-phase electrical transformer |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0653765B1 (en) |
AT (1) | ATE187843T1 (en) |
DE (1) | DE69422142T2 (en) |
EG (1) | EG20461A (en) |
ES (1) | ES2142393T3 (en) |
FR (1) | FR2712730B1 (en) |
MA (1) | MA23366A1 (en) |
OA (1) | OA09967A (en) |
ZA (1) | ZA948692B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2730357A1 (en) * | 1995-02-08 | 1996-08-09 | Alsthom Gec | Electrical disconnection system for transformer immersed in dielectric isolating liquid |
FR2747245B1 (en) * | 1996-04-04 | 1998-05-15 | Gec Alsthom T & D Sa | SYSTEM FOR PROTECTING AN INSULATED THREE-PHASE DISTRIBUTION TRANSFORMER IN A LIQUID DIELECTRIC |
FI102329B1 (en) | 1997-02-06 | 1998-11-13 | Abb Transmit Oy | Switch to disconnect an electrical appliance from an electrical mains |
FR2782409B1 (en) * | 1998-08-14 | 2002-11-29 | Schneider Electric Ind Sa | UNDERWATER TRANSFORMER SELF-PROTECTED BY A DEVICE INCLUDING A CIRCUIT BREAKER AND FUSES |
FR2822601B1 (en) * | 2001-03-21 | 2004-12-24 | Transfix Toulon Soc Nouv | SCALABLE TRANSFORMATION STATION FOR ARTERY-LOWER NETWORKS |
ES2527091T3 (en) | 2007-12-28 | 2015-01-20 | Constructora De Transformadores De Distribución Cotradis, S.L.U. | Electrical equipment for distribution network with fault detection, disconnection and elimination system |
FR2942353B1 (en) | 2009-02-19 | 2011-06-17 | Transfix Toulon Sa Soc Nouv | METHOD, DEVICE AND SYSTEM FOR PROTECTING AN ELECTRICAL APPARATUS, AND TRANSFORMER AND STATION COMPRISING SUCH A DEVICE OR SYSTEM |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4223364A (en) * | 1978-05-25 | 1980-09-16 | Sangster Harold L | Pressure and temperature responsive protective devices |
US4435690A (en) * | 1982-04-26 | 1984-03-06 | Rte Corporation | Primary circuit breaker |
DE3543584A1 (en) * | 1985-12-10 | 1987-06-11 | Volta Werke Electricitaet | Transformer with a fusing (protection) device |
-
1993
- 1993-11-15 FR FR9313700A patent/FR2712730B1/en not_active Expired - Fee Related
-
1994
- 1994-11-03 ZA ZA948692A patent/ZA948692B/en unknown
- 1994-11-08 MA MA23690A patent/MA23366A1/en unknown
- 1994-11-11 OA OA60581A patent/OA09967A/en unknown
- 1994-11-12 EG EG71794A patent/EG20461A/en active
- 1994-11-14 DE DE69422142T patent/DE69422142T2/en not_active Expired - Lifetime
- 1994-11-14 ES ES94470036T patent/ES2142393T3/en not_active Expired - Lifetime
- 1994-11-14 EP EP94470036A patent/EP0653765B1/en not_active Expired - Lifetime
- 1994-11-14 AT AT94470036T patent/ATE187843T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0653765A1 (en) | 1995-05-17 |
EG20461A (en) | 1999-05-31 |
ZA948692B (en) | 1995-07-03 |
FR2712730A1 (en) | 1995-05-24 |
OA09967A (en) | 1995-12-11 |
EP0653765B1 (en) | 1999-12-15 |
MA23366A1 (en) | 1995-07-01 |
DE69422142T2 (en) | 2000-08-24 |
ES2142393T3 (en) | 2000-04-16 |
FR2712730B1 (en) | 1995-12-29 |
ATE187843T1 (en) | 2000-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: HAFT - KARAKATSANIS PATENTANWALTSKANZLEI, 80802 MU |