ES2142393T3 - SUBMERGED AND SELF-PROTECTED POLYPHASE ELECTRIC TRANSFORMER. - Google Patents

SUBMERGED AND SELF-PROTECTED POLYPHASE ELECTRIC TRANSFORMER.

Info

Publication number
ES2142393T3
ES2142393T3 ES94470036T ES94470036T ES2142393T3 ES 2142393 T3 ES2142393 T3 ES 2142393T3 ES 94470036 T ES94470036 T ES 94470036T ES 94470036 T ES94470036 T ES 94470036T ES 2142393 T3 ES2142393 T3 ES 2142393T3
Authority
ES
Spain
Prior art keywords
sensor
transformer
power supply
protection against
phases
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
Application number
ES94470036T
Other languages
Spanish (es)
Inventor
Pierre Mangin
Michel Sacotte
Andre Devalland
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.)
France Transfo SAS
Original Assignee
France Transfo SAS
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 France Transfo SAS filed Critical France Transfo SAS
Application granted granted Critical
Publication of ES2142393T3 publication Critical patent/ES2142393T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Regulation Of General Use Transformers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Cable Accessories (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Fuses (AREA)
  • Insulating Of Coils (AREA)
  • Paints Or Removers (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>
ES94470036T 1993-11-15 1994-11-14 SUBMERGED AND SELF-PROTECTED POLYPHASE ELECTRIC TRANSFORMER. Expired - Lifetime ES2142393T3 (en)

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 (1)

Publication Number Publication Date
ES2142393T3 true ES2142393T3 (en) 2000-04-16

Family

ID=9452921

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94470036T Expired - Lifetime ES2142393T3 (en) 1993-11-15 1994-11-14 SUBMERGED AND SELF-PROTECTED POLYPHASE ELECTRIC 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ATE187843T1 (en) 2000-01-15
EP0653765A1 (en) 1995-05-17
DE69422142T2 (en) 2000-08-24
FR2712730A1 (en) 1995-05-24
EP0653765B1 (en) 1999-12-15
EG20461A (en) 1999-05-31
FR2712730B1 (en) 1995-12-29
ZA948692B (en) 1995-07-03
OA09967A (en) 1995-12-11
DE69422142D1 (en) 2000-01-20
MA23366A1 (en) 1995-07-01

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