EP0993007B1 - Transformatorenanordnung mit Kühlkreislauf - Google Patents
Transformatorenanordnung mit Kühlkreislauf Download PDFInfo
- Publication number
- EP0993007B1 EP0993007B1 EP99250348A EP99250348A EP0993007B1 EP 0993007 B1 EP0993007 B1 EP 0993007B1 EP 99250348 A EP99250348 A EP 99250348A EP 99250348 A EP99250348 A EP 99250348A EP 0993007 B1 EP0993007 B1 EP 0993007B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transformer
- cooling
- housing
- coil
- cooling channels
- 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.)
- Revoked
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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.
- a transformer arrangement according to the The preamble of claim 1 is from FR-A-1 510 551 known.
- 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 provides.
- 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 made available 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 cooling 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 directed.
- An adjustment of the temperatures with the boiler liquid can only in the area of the short inlet channels take place in the cauldron. 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 has the consequence that it is easier can be built as it is in the state of the art Case is.
- Fig. 1 is a transformer arrangement with a cooling system shown as a railway transformer in less Construction height under the car floor of a multiple unit assemble.
- a cooling system shown as a railway transformer in less Construction height under the car floor of a multiple unit assemble.
- 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 gauges P 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 also 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 pressure pieces 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 13 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 identical 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 is 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 on the one hand 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. Due to the laminar flow there are hardly any pressure losses in the coil and the cold oil is targeted in the narrow cooling gaps passed through the hot coil, creating heat without the disadvantages of laminar flow are dissipated in a controlled manner becomes.
- 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)
Description
Claims (6)
- Transformatoranordnung mit Kühlkreislauf, insbesondere zur Verwendung als Bahntransformatoranordnung, die mindestens einen in einem Gehäuse (1) aufgenommenen Transformator, einen Kühler (3) und eine Umwälzpumpe (2) aufweist, wobei der Transformator mindestens eine Spule (5) aus mindestens einer Primärwicklung (7) und einer Sekundärwicklung (9) aufweist, die konzentrisch auf einem Kern angeordnet sind und wobei ein Kühlmedium durch das Gehäuse (1), die Pumpe (2) und den Kühler (3) derart zirkuliert, daß das Kühlmedium nach Kühlung durch den Kühler (3) ohne Mischung mit im Gehäuse befindlichem Kühlmedium der Spule (5) zugeführt wird,
dadurch gekennzeichnet, daß die mindestens eine Spule (5) als Lagenwikkelanordnung ausgebildet ist, bei der die Primärwicklung (7) und die Sekundärwicklung (9) jeweils konzentrisch in Lagen gewickelt sind und zwischen den einzelnen Lagen koaxial angeordnete Kühlkanäle (11) mit einer lichten Weite von kleiner als 4 mm vorgesehen sind, durch die das Kühlmedium in im wesentlichen laminarer Strömung gezielt geführt ist und daß die Spule (5) ein inneres (6) und ein äußeres Trägerrohr (12) aufweist, zwischen denen die Wicklungen (7, 9) aufgenommen sind und die durch Druckflansche (14) unter Bildung einer einströmseitigen mit den Kühlkanälen in Verbindung stehenden Verteilerkammer (15) abgeschlossen sind. - Transformatoranordnung nach Anspruch 1, dadurch gekennzeichnet, daß zwischen den Lagen Distanzstücke (8) zur Bildung der Kühlkanäle (11) vorgesehen sind.
- Transformatoranordnung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß das Gehäuse (1) und/oder Spannelemente zum Verspannen des Kerns (18) des Transformators Hohlprofile zum Führen des Kühlmediums aufweisen.
- Transformatoranordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die mindestens eine Spule (5) das innere Trägerrohr (6), die darauf angeordnete, die Kühlkanäle (11) aufweisende Primärwicklung (7), ein Separationsrohr (10), die darauf angeordnete, mit den Kühlkanälen versehene Sekundärwicklung (9) und das äußeres Trägerrohr (12) aufweist, wobei in der jeweiligen Verteilerkammer (15) an der Einund/oder Ausströmseite der Kühlkanäle (11) mit Abstand zueinander angeordnete Druckstücke (13) mit Durchströmöffnungen (16) vorgesehen sind und die Verteilerkammern (15) mit den Druckflanschen (14) abgeschlossen sind, die Durchströmöffnungen (17) aufweisen.
- Transformatoranordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kühlkanäle eine lichte Weite von kleiner als 3 mm aufweisen.
- Transformatoranordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gehäuse 1 als Niederdruckkessel ausgebildet ist.
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 |
---|---|---|---|
DE19847267 | 1998-10-07 | ||
DE19847267A DE19847267A1 (de) | 1998-10-07 | 1998-10-07 | Transformatorenanordnung mit Kühlkreislauf |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0993007A1 EP0993007A1 (de) | 2000-04-12 |
EP0993007B1 true EP0993007B1 (de) | 2003-06-04 |
Family
ID=7884385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99250348A Revoked EP0993007B1 (de) | 1998-10-07 | 1999-09-30 | Transformatorenanordnung mit Kühlkreislauf |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0993007B1 (de) |
AT (1) | ATE242539T1 (de) |
DE (2) | DE19847267A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2406798B1 (de) | 2009-03-12 | 2015-09-16 | ABB Technology AG | Elektrischer transformator mit verbessertem kühlsystem |
Families Citing this family (7)
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 |
DE60220560T2 (de) | 2001-01-27 | 2007-10-18 | Sma Technologie Ag | Mittelfrequenz-Energieversorgung für ein Schienenfahrzeug |
DE10117847C1 (de) * | 2001-04-04 | 2003-02-06 | Siemens Ag | Transformator mit forcierter Flüssigkeitskühlung |
DE50101637D1 (de) * | 2001-11-14 | 2004-04-08 | Abb Secheron S A | Transformator und Einspeiseschaltung für Mehrsystem-Triebfahrzeuge |
DE102014220145A1 (de) * | 2014-10-06 | 2016-04-07 | Robert Bosch Gmbh | Kühlüberwachungsvorrichtung für eine Transformatorkühlung eines Schweißtransformators |
EP3881343A1 (de) * | 2018-11-12 | 2021-09-22 | Carrier Corporation | Gekühlter transformator für eine energiespeichervorrichtung |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3663910A (en) * | 1970-05-25 | 1972-05-16 | Allis Chalmers Mfg Co | Shunt reactor having improved insulating fluid circulating means |
Family Cites Families (6)
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 |
US3371299A (en) * | 1966-02-10 | 1968-02-27 | Westinghouse Electric Corp | Transformer apparatus cooling system |
DE2512714C2 (de) * | 1975-03-22 | 1984-05-24 | Ainslie Old Trafford Manchester Walthew | Zündspule für eine Brennkraftmaschine |
-
1998
- 1998-10-07 DE DE19847267A patent/DE19847267A1/de not_active Withdrawn
-
1999
- 1999-09-30 AT AT99250348T patent/ATE242539T1/de not_active IP Right Cessation
- 1999-09-30 EP EP99250348A patent/EP0993007B1/de not_active Revoked
- 1999-09-30 DE DE59905812T patent/DE59905812D1/de not_active Revoked
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3663910A (en) * | 1970-05-25 | 1972-05-16 | Allis Chalmers Mfg Co | Shunt reactor having improved insulating fluid circulating means |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2406798B1 (de) | 2009-03-12 | 2015-09-16 | ABB Technology AG | Elektrischer transformator mit verbessertem kühlsystem |
Also Published As
Publication number | Publication date |
---|---|
DE59905812D1 (de) | 2003-07-10 |
EP0993007A1 (de) | 2000-04-12 |
ATE242539T1 (de) | 2003-06-15 |
DE19847267A1 (de) | 2000-04-13 |
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