EP0447389A2 - Transformateur - Google Patents

Transformateur Download PDF

Info

Publication number
EP0447389A2
EP0447389A2 EP91890044A EP91890044A EP0447389A2 EP 0447389 A2 EP0447389 A2 EP 0447389A2 EP 91890044 A EP91890044 A EP 91890044A EP 91890044 A EP91890044 A EP 91890044A EP 0447389 A2 EP0447389 A2 EP 0447389A2
Authority
EP
European Patent Office
Prior art keywords
boiler
oil
transformer
transformer according
free space
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
Application number
EP91890044A
Other languages
German (de)
English (en)
Other versions
EP0447389B1 (fr
EP0447389A3 (en
Inventor
Manfred Ing. Schöfbänker
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.)
ELEKTRO-BAU AG
Original Assignee
ELEKTRO-BAU AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3494961&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0447389(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ELEKTRO-BAU AG filed Critical ELEKTRO-BAU AG
Publication of EP0447389A2 publication Critical patent/EP0447389A2/fr
Publication of EP0447389A3 publication Critical patent/EP0447389A3/de
Application granted granted Critical
Publication of EP0447389B1 publication Critical patent/EP0447389B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

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
    • H01F27/02—Casings

Definitions

  • the invention relates to a transformer, especially a distribution transformer, with an oil boiler and an outer oil collecting container, the receiving space of which is partly delimited by the boiler wall.
  • transformers with oil boilers filled with insulating liquid for cooling and insulation requires the operator to meet extensive requirements with regard to environmental protection, operational safety and economic aspects.
  • the national installation regulations for transformers contain precise information on the structural design of rooms for transformers and structural measures when installing transformers outdoors.
  • oil collection containers When installing liquid-cooled transformers, oil collection containers must be provided at least from a certain size. These oil collecting tanks have so far been designed as oil collecting trays. If the transformer is placed in the oil drip pan, which is usually open at the top, its receiving space is partly limited by the boiler wall.
  • the capacity of the oil drip pan must be so coarse that the oil escaping from the transformer tank in the worst-case scenario is perfectly collected. This requirement can be met with stationary stations at ground level and in particular in installation rooms without excessive difficulties.
  • the conventional oil sumps do not provide additional explosion protection.
  • the oil drip pan is not to be confused with an expansion tank provided on some transformers, the is connected to the filling chamber of the transformer via lines and absorbs the excess insulating liquid when heated.
  • Such an expansion tank is preferably used in transformers with air or gas cushions above the insulating liquid.
  • a compensating vessel is attached to the cover of the transformer and is connected to the filling space of the transformer by bores, a gas-filled balloon being present in the compensating vessel, which is intended to compensate for the thermal volume changes in the insulating liquid.
  • a cylinder-like receiving space is attached to the side of the transformer tank, in which a spring-loaded pressure piston is adjusted according to the current expansion of the insulating liquid.
  • a transformer with a protective gas cushion located above the insulating liquid and laterally attached to a wall of the transformer pressure vessel is known, which is also filled with protective gas and is connected via a siphon to the protective gas cushion above the insulating liquid. This is intended to provide additional protection against the penetration of moisture into the insulating liquid. From a certain size, all of these transformers would have to be additionally equipped with an oil collector.
  • corrugated wall boiler has established itself in Europe for distribution transformers in the power range up to 2.5 MVA and occasionally above.
  • the elasticity of the correspondingly dimensioned corrugated wall of this boiler can absorb the volume changes forced by the temperature-related expansion of the oil.
  • the cooling and insulating liquid of the transformer is completely sealed off from the outside air.
  • the object of the invention is to provide a transformer, in particular a distribution transformer with an oil tank and oil collecting container, which offers increased security against the escape of oil into the ground, does not require any additional maintenance and which can also be used as a mast station transformer, the cooling of the transformer is not adversely affected and the function of the oil collecting container is not ineffective due to atmospheric precipitation.
  • the object is achieved in that the oil collecting container is designed as the oil boiler while maintaining a free space between the side walls enclosing the receiving space.
  • the outer boiler provides additional protection for the inner boiler on the one hand and on the other hand not only an oil collection container if the oil boiler leaks, but also in extreme cases an explosion protection when the inner boiler bursts open.
  • care must be taken to ensure that the heat loss from the transformer is dissipated properly.
  • the outer boiler with the heat transfer from the interior and thus from the oil boiler of the transformer to the ambient air improving heat exchange surfaces, for. B. cooling fins, provided, wherein according to a preferred embodiment, the outer boiler is designed as a corrugated wall boiler.
  • a cooling air flow can, for. B. achieve by utilizing air heating on the oil boiler in that one or more pipes are insulated from one upper inlet opening on one side of the outer boiler up to near the ground and air outlet openings are made on the opposite side of the outer boiler. The inlets of the air inlet pipes are protected against the ingress of rainwater. Another possibility is of course to provide forced ventilation of the interior via fans or the like that can be switched on and off by thermostats.
  • the oil boiler which is constructed as a hermetically sealed corrugated wall boiler, is connected to the air space between the boilers via at least one pressure relief valve, the pressure relief valve being used to prevent the inner boiler from bursting in the event of an impermissible pressure increase and, on the other hand, because of the discharge pollution in the air space between the two boilers is avoided.
  • the oil boiler in the floor area can be connected to the external boiler via detachable brackets.
  • the constructive design of the transformer in hermetic construction should be the normal version z. B. according to DIN 42500.
  • the active part of the transformer consisting of iron core and windings, is installed in an inner oil boiler 1 designed as a corrugated wall boiler.
  • the insulating liquid consisting of transformer oil is hermetically sealed from the ambient air in this oil boiler 1. All fittings that are used for oil manipulation and monitoring are attached to the oil boiler 1. Of these fittings, a thermometer pocket 2, a filler neck 3 with level indicator, an oil main drain 4 and a pressure relief valve 5 were indicated.
  • the oil boiler 1 encloses an outer boiler 9, which is also designed as a corrugated wall boiler, while maintaining a free space 6 between the corrugated walls 7 and 8.
  • an outer boiler 9 which is also designed as a corrugated wall boiler, while maintaining a free space 6 between the corrugated walls 7 and 8.
  • a common end cover 10 is provided, on which the upper and lower voltage bushings 11, 12 are also constructed.
  • Lifting eyes 13 are attached to the cover 10.
  • the boiler 1 is connected in the floor area to the outer boiler 9 via detachable brackets.
  • a chassis 14 and tension and tensioning sleeves 15, 16 are attached to the outer boiler 9 for pulling the transformer or for lashing it down on the mast station. Since the inner shell is detachably connected to the outer shell and the tensioning and supporting elements are provided on the outer shell 9, transport stresses can easily be absorbed. Instead of A skid 14 can also be provided with skids or other elements.
  • the outer boiler 9 is beveled at the bottom against the floor area.
  • the heat loss of the transformer is given off through the shaft walls 7 of the oil boiler 1 to the air in the intermediate space 6 and is partly dissipated by this to the external boiler 9 by convection and from there to the ambient air. A small part of the heat is also emitted by radiation from the boiler 1 to the boiler 9.
  • the activation of the intercooling circuit via the interspace 6 must be taken into account, since there is a different temperature gradient than when the heat is emitted directly from the oil boiler free ambient air.
  • the outer boiler is dimensioned with regard to its heat-absorbing or emitting surfaces so that the permissible temperature limits of the transformer are observed.
  • the outer boiler 9 must of course be able to absorb the entire amount of oil in this boiler if the oil boiler 1 bursts. Another condition is that the outer boiler 9 absorbs the resulting or released kinetic energy when the inner boiler 1 bursts without bursting open. Atmospheric precipitation is kept away from the interior 6.
  • passage ventilation is provided.
  • a device not shown, for. B. a downwardly open pipe elbow protected from the rainwater inlet 17 in one corner of the outer boiler 9, a pipe preferably thermally insulated up to the ground and in the area of the diagonally opposite corner, an air outlet 18 is provided above.
  • the outer boiler 9 is also provided with a drain 19.
  • the outlet of the pressure relief valve 5 leads into the intermediate space 6, thereby ensuring that no oil can escape into the open when the valve responds. It is also possible to design the pressure relief valve as a sensor for a circuit breaker of the transformer.
  • the main boiler Compared to a normal oil transformer or hermetic transformer, the main boiler has larger main dimensions. However, these are still much smaller than the corresponding dimensions of dry and cast resin transformers with the same performance with one housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Transformer Cooling (AREA)
EP91890044A 1990-03-14 1991-03-05 Transformateur Revoked EP0447389B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0060390A AT397317B (de) 1990-03-14 1990-03-14 Transformator
AT603/90 1990-03-14

Publications (3)

Publication Number Publication Date
EP0447389A2 true EP0447389A2 (fr) 1991-09-18
EP0447389A3 EP0447389A3 (en) 1992-08-05
EP0447389B1 EP0447389B1 (fr) 1995-06-21

Family

ID=3494961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91890044A Revoked EP0447389B1 (fr) 1990-03-14 1991-03-05 Transformateur

Country Status (9)

Country Link
EP (1) EP0447389B1 (fr)
AT (1) AT397317B (fr)
DE (1) DE59105755D1 (fr)
DK (1) DK0447389T3 (fr)
ES (1) ES2073729T3 (fr)
FI (1) FI911195A (fr)
IE (1) IE67358B1 (fr)
NO (1) NO911002L (fr)
TR (1) TR26537A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010031448A1 (fr) * 2008-09-19 2010-03-25 Abb Technology Ag Ensemble transformateur
US8299880B2 (en) 2008-10-06 2012-10-30 Abb Technology Ag Transformer assembly
US8314673B2 (en) 2008-09-19 2012-11-20 Abb Technology Ag Transformer assembly
EP2565445A1 (fr) * 2011-09-02 2013-03-06 Siemens Aktiengesellschaft Chambre de transformateur pour éolienne, composant de structure d'éolienne, éolienne et procédé d'assemblage d'éolienne
CN106024312A (zh) * 2016-08-08 2016-10-12 常熟市东方特种金属材料厂 一种耐高温变压器油箱外壳
DE102018217755A1 (de) * 2018-10-17 2020-04-23 Siemens Aktiengesellschaft Mast-Trockentransformator

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE594495C (de) * 1929-07-30 1934-03-17 Koch & Sterzel Akt Ges Hochspannungstransformator, dessen Oberspannungswicklung in einem einteiligen Spulenkasten aus Isolierwerkstoff untergebracht ist.
GB714524A (en) * 1952-02-07 1954-09-01 Vickers Electrical Co Ltd Improvements relating to electric transformers and the like
FR60462E (fr) * 1950-07-22 1954-11-03 Immersion des transformateurs électriques
NL7204831A (fr) * 1971-04-15 1972-10-17 Transformatoren Union Ag
DE2159314A1 (de) * 1971-11-30 1973-06-07 Lahmeyer Ag Transformatorenkessel zur verwendung in einer unterflur-transformatorstation
GB2068647A (en) * 1980-01-30 1981-08-12 Tokyo Shibaura Electric Co Tanks for oil-cooled electrical induction apparatus
JPS56135911A (en) * 1980-03-27 1981-10-23 Toshiba Corp Oil-immersed electric apparatus
DE3406115A1 (de) * 1984-02-21 1985-09-05 Wickmann-Werke Böblingen GmbH, 7030 Böblingen Gehaeuse einer transformator-freiluftstation
US4904972A (en) * 1989-06-28 1990-02-27 Hitachi, Ltd. Gas-insulated stationary induction electrical apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US609900A (en) * 1898-08-30 William neil
GB353405A (en) * 1929-02-28 1931-07-15 Atlantic Coast Fisheries Co Improvements in meat steaks such as fish and method of producing same
CH627874A5 (en) * 1977-03-24 1982-01-29 Gen Electric Traction-motor transformer having a liquid-tight housing

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE594495C (de) * 1929-07-30 1934-03-17 Koch & Sterzel Akt Ges Hochspannungstransformator, dessen Oberspannungswicklung in einem einteiligen Spulenkasten aus Isolierwerkstoff untergebracht ist.
FR60462E (fr) * 1950-07-22 1954-11-03 Immersion des transformateurs électriques
GB714524A (en) * 1952-02-07 1954-09-01 Vickers Electrical Co Ltd Improvements relating to electric transformers and the like
NL7204831A (fr) * 1971-04-15 1972-10-17 Transformatoren Union Ag
DE2159314A1 (de) * 1971-11-30 1973-06-07 Lahmeyer Ag Transformatorenkessel zur verwendung in einer unterflur-transformatorstation
GB2068647A (en) * 1980-01-30 1981-08-12 Tokyo Shibaura Electric Co Tanks for oil-cooled electrical induction apparatus
JPS56135911A (en) * 1980-03-27 1981-10-23 Toshiba Corp Oil-immersed electric apparatus
DE3406115A1 (de) * 1984-02-21 1985-09-05 Wickmann-Werke Böblingen GmbH, 7030 Böblingen Gehaeuse einer transformator-freiluftstation
US4904972A (en) * 1989-06-28 1990-02-27 Hitachi, Ltd. Gas-insulated stationary induction electrical apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 12 (E-91)(890) 23. Januar 1982 & JP-A-56 135 911 ( TOKYO SHIBAURA DENKI ) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010031448A1 (fr) * 2008-09-19 2010-03-25 Abb Technology Ag Ensemble transformateur
US8314673B2 (en) 2008-09-19 2012-11-20 Abb Technology Ag Transformer assembly
US8299880B2 (en) 2008-10-06 2012-10-30 Abb Technology Ag Transformer assembly
EP2565445A1 (fr) * 2011-09-02 2013-03-06 Siemens Aktiengesellschaft Chambre de transformateur pour éolienne, composant de structure d'éolienne, éolienne et procédé d'assemblage d'éolienne
US9514874B2 (en) 2011-09-02 2016-12-06 Siemens Aktiengesellschaft Transformer chamber for a wind turbine
CN106024312A (zh) * 2016-08-08 2016-10-12 常熟市东方特种金属材料厂 一种耐高温变压器油箱外壳
DE102018217755A1 (de) * 2018-10-17 2020-04-23 Siemens Aktiengesellschaft Mast-Trockentransformator

Also Published As

Publication number Publication date
IE910846A1 (en) 1991-09-25
TR26537A (tr) 1995-03-15
ATA60390A (de) 1993-07-15
NO911002D0 (no) 1991-03-13
IE67358B1 (en) 1996-03-20
DK0447389T3 (da) 1995-10-09
ES2073729T3 (es) 1995-08-16
EP0447389B1 (fr) 1995-06-21
NO911002L (no) 1991-09-16
FI911195A0 (fi) 1991-03-11
FI911195A (fi) 1991-09-15
EP0447389A3 (en) 1992-08-05
DE59105755D1 (de) 1995-07-27
AT397317B (de) 1994-03-25

Similar Documents

Publication Publication Date Title
EP1831901B1 (fr) Composant electrique a circuit de refroidissement pour une utilisation sous-marine
EP0174380B1 (fr) Installation avec un réacteur nucléaire chauffant
WO2007003595A1 (fr) Composant électrique
EP0125374A2 (fr) Dépôt transitoire pour déchets hautement radioactifs
WO2008043389A1 (fr) Transformateur pour une centrale électrique fonctionnant avec le courant océanique
AT397317B (de) Transformator
DE3518968A1 (de) Unterirdisch in der kaverne eines zylindrischen druckbehaelters angeordneter kernreaktor niedriger leistung
DE3343166A1 (de) Behaelter insbesondere fuer radioaktive substanzen
DE3534422C2 (fr)
US3212563A (en) Cooling means for buried transformer
DE69929353T2 (de) Erdgekühlte verteilungstrafoanordnung und verfahren
DE2209938C3 (fr)
DE2209938B2 (de) Unterirdische transformatorstation
DE60028164T2 (de) Druckentlastungsvorrichtung für einen Kernreaktorbehälter
DE2811935A1 (de) Traktionsmotortransformator mit kompaktem oelbehaeltersystem
CN206432607U (zh) 一种大容量高电压小型化箱式变电器
DE3843807A1 (de) Selbstgekuehlter hochspannungstransformator
EP0942442B1 (fr) Poste transformateur à construction compacte
DE202022103006U1 (de) Wärmesenke für elektrische Ausrüstung in Kraftwerken
DE3110304A1 (de) Raumzelle, insbesondere explosionsgefaehrdete netzstation
DE102018217755A1 (de) Mast-Trockentransformator
EP4323597A1 (fr) Plateforme pour une configuration d'économie d'espace d'une installation de conversion d'énergie, et installation de conversion d'énergie
DE2243383C3 (de) Elektrische Umspannstation für Unterflurauf stellung
DE6604614U (de) Elektrisches betriebsmittel, insbesondere transformator.
DE2159314A1 (de) Transformatorenkessel zur verwendung in einer unterflur-transformatorstation

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE DK ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19930120

17Q First examination report despatched

Effective date: 19940114

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE DK ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 59105755

Country of ref document: DE

Date of ref document: 19950727

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2073729

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed

Owner name: STUDIO TORTA SOCIETA' SEMPLICE

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3016552

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950821

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960304

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Effective date: 19960305

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960306

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960331

Ref country code: BE

Effective date: 19960331

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: SIEMENS AG

Effective date: 19960320

NLR1 Nl: opposition has been filed with the epo

Opponent name: SIEMENS AG

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

BERE Be: lapsed

Owner name: ELEKTRO-BAU A.G.

Effective date: 19960331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19961001

REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3016552

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961129

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19961001

EUG Se: european patent has lapsed

Ref document number: 91890044.0

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970305

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19970403

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970408

Year of fee payment: 7

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970305

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

27W Patent revoked

Effective date: 19970811