EP0993007A1 - Dispositif de transformateur avec circuit de refroidissement - Google Patents

Dispositif de transformateur avec circuit de refroidissement Download PDF

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Publication number
EP0993007A1
EP0993007A1 EP99250348A EP99250348A EP0993007A1 EP 0993007 A1 EP0993007 A1 EP 0993007A1 EP 99250348 A EP99250348 A EP 99250348A EP 99250348 A EP99250348 A EP 99250348A EP 0993007 A1 EP0993007 A1 EP 0993007A1
Authority
EP
European Patent Office
Prior art keywords
transformer
cooling channels
arrangement according
cooling
transformer arrangement
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
EP99250348A
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German (de)
English (en)
Other versions
EP0993007B1 (fr
Inventor
Helmut Nieke
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.)
Nieke Elektroapparate Berlin GmbH
Original Assignee
Nieke Elektroapparate Berlin GmbH
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=7884385&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0993007(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nieke Elektroapparate Berlin GmbH filed Critical Nieke Elektroapparate Berlin GmbH
Priority to DE29924221U priority Critical patent/DE29924221U1/de
Publication of EP0993007A1 publication Critical patent/EP0993007A1/fr
Application granted granted Critical
Publication of EP0993007B1 publication Critical patent/EP0993007B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • 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
    • H01F27/2876—Cooling

Definitions

  • the invention relates to a transformer arrangement with cooling circuit, especially for use as Railway transformer arrangement according to the preamble of Main claim.
  • railway transformers which act as disc winders are formed, the primary and Secondary windings are designed as disks are arranged axially side by side on the core.
  • Such transformers are provided with cooling, where the coolant, here transformer oil over nozzles under high pressure between and on the disc-shaped windings is energized. The oil is drawn off via a pump and fed to a cooler and then used again for cooling.
  • Such a known disc winder with cooling has the disadvantage that the on or between the Coils injected cold oil very quickly with that hot oil in the transformer mixes so that a large amount of oil, e.g. 1000 l circulated must be, if only 400 l are effectively necessary.
  • large sizes occur in a disc winder axial short-circuit forces on those with corresponding Clamping elements must be taken into account.
  • the invention has for its object a transformer arrangement to create the small dimensions and has an effective cooling system available poses.
  • the transformer is designed as a layer winder is where between the winding layers Cooling channels are provided that are targeted and essentially laminar flows through the cooling medium can be a transformer arrangement with extreme low height are provided, the has an extraordinarily high cooling efficiency.
  • the transformer coil is almost in shape a heat exchanger formed, the cooling channels can be very thin, e.g. clear spaces of smaller 3 mm. This makes it a low all-round The amount of oil required, the speed is slow and the pressure drops are also low.
  • the loss generator i.e. the Transformer coil heated amount of oil after recooling through the cooler directly without mixing with the Oil in the housing to cool the coil again the efficiency is increased.
  • the the advantage that arises here lies in the respective Difference to the resulting mixing temperature recooled liquid and the liquid that according to the amount of liquid in the boiler and their possibility for temperature compensation judges.
  • An adjustment of the temperatures with the boiler liquid can only in the area of the short inlet channels take place in the boiler. Because of the low the aggregates, how circulation pump and cooler are made smaller. Because the pressure drops in the controlled management of the cooling medium through the cooling channels at which cold oil specifically introduced into the hot coil is, the cooling medium becomes less Pressure e.g. Atmospheric pressure, introduced into the housing, whereby this is designed as a low pressure boiler can be, which makes it easier can be built as it is in the prior art Case is.
  • Fig. 1 is a transformer arrangement with a cooling system shown as a railway transformer in less Height under the floor of a multiple unit assemble. Here is the available installation height for example 450 to 550 mm.
  • the one shown in Fig. 1 System consists of at least one in one housing or boiler 1 recorded, not shown in Fig. 1 Transformer, a circulation pump 2, one Cooler 3 with fan and corresponding connecting lines 4, which the warm cooling medium from the Route the boiler to the circulation pump 2 and the cooler and the cold cooling medium, i.e. Transformer oil again return to boiler 1.
  • Pressure monitors P are used to monitor the cooling system and temperature measuring devices T provided and continue a flow meter Q can be used in the lines 4 his.
  • the cooling system is monitored in the essentially by controlling the temperatures of the the transformers cooling liquid instead.
  • a Inadmissible temperature signals the error for coil faults, for pump failure or underperformance, for cooler or duct contamination or on impermissible overload or driving operation.
  • Figs. 2 and 3 is a coil of the transformer shown in longitudinal and cross section according to is based on the principle of a heat exchanger.
  • the Coil 5 has an inner support tube 6 on which concentrically a high-voltage winding 7 as the primary winding is wound, for example for a High voltage of 25 kV is designed.
  • the high voltage winding 7 consists of several layers, between which spacer strips 8 are attached. These spacer bars 8 extend over the entire length the high-voltage winding 7, being between inner Carrier tube 6 and the first layer preferably likewise Last 8 are arranged.
  • the traction winding 9 On the high voltage winding 7 sits the traction winding 9 as a secondary winding, which also comprises several layers and for example for a low voltage of 2000 V is designed.
  • a separation tube 10 is provided, that's the insulation between the two windings ensures. Also between the layers of the traction windings strips 8 are provided.
  • the strips 8 define the size or the clear Width of cooling channels 11, the clear width less than 4 mm, preferably less than 3 mm can be.
  • the high-voltage winding 7 and the traction winding 9 can also be produced separately from one another, whereupon they are inserted into each other.
  • the windings are in an outer carrier tube 12 added, the inner support tube 6 and the outer carrier tube 12 on both sides over the windings 7, 9 protrude.
  • the windings are of radial arranged pressure pieces 13 and one each the end of the carrier tubes 6, 12 closing annular Pressure flange 14 set. Between pressure flanges 14 and the winding ends is thus each one from space segments between the printing blocks 7 formed distribution chamber 15, which at the same time as high-voltage security against ground and stray fields serves and prevents stray fields penetrate the yoke.
  • the pressure pieces 15 have holes 16 on through the segments of the distribution chamber 15 are connected. Continue to point the pressure flanges 14 flow openings 17 for the Cooling medium.
  • the carrier tubes 6, 12 and the separation tube 10 and the spacer strips 8 for the cooling channels 11 Made from glass fiber composites that their requirements for insulation strength and mechanical Meet strength.
  • Figs. 2 and 3 coil is shown together with an identically constructed coil on the two legs of a core put on and in the housing 1 or the boiler used, the core held together by clamping elements designed as press iron and connected to the housing.
  • the Press iron are designed as hollow profiles that Have flow openings, which in turn with the Flow openings 17 of the coils 5 in connection stand.
  • the housing preferably also has hollow profiles on that for the supply and discharge of the cooling medium into the press iron and if necessary as side streams serve inside the case. Coils and core are attached in the housing, being in the housing still other components such as chokes or the like can be included.
  • Fig. 4 is the flow diagram in the schematic Housing 1 shown, the one corresponding to Fig. 1 with the cooler 3 and on the other hand with the circulation pump 2 is connected. 4 are two coils 5 on each leg 18 of the core arranged in parallel and via the return line 4 from Cooler 3 becomes cold oil corresponding to the housing 1 the arrow 19 fed.
  • the oil gets into the hollow profile trained press iron, what by the reference numeral 20 is indicated, and flows through the flow openings 17 in the flanges 14 in the distribution chambers 15. From the distribution chambers 15, the oil in one essentially laminar flow through the cooling channels 11 of the coils 5 passed through what Arrows 21 is indicated.
  • the oil leaves the coils it can be brought out in a targeted manner or it can be used for cooling secondary Loss generators are used, such as recorded in another chamber in the housing can be what is indicated by the reference number 22 is indicated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)
  • Coils Or Transformers For Communication (AREA)
EP99250348A 1998-10-07 1999-09-30 Dispositif de transformateur avec circuit de refroidissement Revoked EP0993007B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29924221U DE29924221U1 (de) 1998-10-07 1999-09-30 Transformatorenanordnung mit Kühlkreislauf

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19847267A DE19847267A1 (de) 1998-10-07 1998-10-07 Transformatorenanordnung mit Kühlkreislauf
DE19847267 1998-10-07

Publications (2)

Publication Number Publication Date
EP0993007A1 true EP0993007A1 (fr) 2000-04-12
EP0993007B1 EP0993007B1 (fr) 2003-06-04

Family

ID=7884385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99250348A Revoked EP0993007B1 (fr) 1998-10-07 1999-09-30 Dispositif de transformateur avec circuit de refroidissement

Country Status (3)

Country Link
EP (1) EP0993007B1 (fr)
AT (1) ATE242539T1 (fr)
DE (2) DE19847267A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002082478A1 (fr) * 2001-04-04 2002-10-17 Siemens Aktiengesellschaft Transformateur a refroidissement liquide force
EP1315180A1 (fr) * 2001-11-14 2003-05-28 ABB Sécheron SA Transformateur et circuit d'alimentation pour véhicules de traction à systèmes multiples
WO2020101905A1 (fr) * 2018-11-12 2020-05-22 Carrier Corporation Transformateur refroidi pour dispositif de stockage d'énergie

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961382A1 (de) 1999-07-31 2001-02-01 Alstom Anlagen Und Antriebssys Elektrische Schaltung, insbesondere für einen Mittelspannungsstromrichter
DE10058080A1 (de) * 2000-11-23 2002-06-06 Daimlerchrysler Rail Systems Mittelfrequenztransformator
ATE364525T1 (de) 2001-01-27 2007-07-15 Sma Technologie Ag Mittelfrequenz-energieversorgung für ein schienenfahrzeug
EP2406798B1 (fr) 2009-03-12 2015-09-16 ABB Technology AG Transformateur électrique avec système de refroidissement amélioré
DE102014220145A1 (de) * 2014-10-06 2016-04-07 Robert Bosch Gmbh Kühlüberwachungsvorrichtung für eine Transformatorkühlung eines Schweißtransformators

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE587820C (de) * 1930-04-18 1934-01-27 Koch & Sterzel Akt Ges Lagenweise Hochspannungswicklung mit axial gesteuerter Spannungsverteilung der Lagenenden vom End- zum Anfangspotential, insbesondere fuer Transformatoren, Messwandler oder Drosselspulen
GB622907A (en) * 1944-02-15 1949-05-10 British Thomson Houston Co Ltd Improvements in systems for circulating cooling fluid through electrical apparatus
DE896089C (de) * 1941-08-02 1953-11-09 Aeg Grosstransformator, durch dessen Wicklung OEl hindurchgesaugt oder -gedrueckt wird
DE948718C (de) * 1943-05-20 1956-09-06 Aeg Transformator mit kuenstlicher OElumlaufkuehlung
FR1510551A (fr) * 1966-02-10 1968-01-19 Westinghouse Electric Corp Perfectionnements aux transformateurs
US3663910A (en) * 1970-05-25 1972-05-16 Allis Chalmers Mfg Co Shunt reactor having improved insulating fluid circulating means
DE2512714A1 (de) * 1975-03-22 1976-09-30 Ainslie Walthew Vorrichtung zum induzieren einer elektrischen spannung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE587820C (de) * 1930-04-18 1934-01-27 Koch & Sterzel Akt Ges Lagenweise Hochspannungswicklung mit axial gesteuerter Spannungsverteilung der Lagenenden vom End- zum Anfangspotential, insbesondere fuer Transformatoren, Messwandler oder Drosselspulen
DE896089C (de) * 1941-08-02 1953-11-09 Aeg Grosstransformator, durch dessen Wicklung OEl hindurchgesaugt oder -gedrueckt wird
DE948718C (de) * 1943-05-20 1956-09-06 Aeg Transformator mit kuenstlicher OElumlaufkuehlung
GB622907A (en) * 1944-02-15 1949-05-10 British Thomson Houston Co Ltd Improvements in systems for circulating cooling fluid through electrical apparatus
FR1510551A (fr) * 1966-02-10 1968-01-19 Westinghouse Electric Corp Perfectionnements aux transformateurs
US3663910A (en) * 1970-05-25 1972-05-16 Allis Chalmers Mfg Co Shunt reactor having improved insulating fluid circulating means
DE2512714A1 (de) * 1975-03-22 1976-09-30 Ainslie Walthew Vorrichtung zum induzieren einer elektrischen spannung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002082478A1 (fr) * 2001-04-04 2002-10-17 Siemens Aktiengesellschaft Transformateur a refroidissement liquide force
US6838968B2 (en) 2001-04-04 2005-01-04 Siemens Aktiengesellschaft Transformer with forced liquid coolant
EP1315180A1 (fr) * 2001-11-14 2003-05-28 ABB Sécheron SA Transformateur et circuit d'alimentation pour véhicules de traction à systèmes multiples
WO2020101905A1 (fr) * 2018-11-12 2020-05-22 Carrier Corporation Transformateur refroidi pour dispositif de stockage d'énergie

Also Published As

Publication number Publication date
DE19847267A1 (de) 2000-04-13
EP0993007B1 (fr) 2003-06-04
ATE242539T1 (de) 2003-06-15
DE59905812D1 (de) 2003-07-10

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