DE2854520A1 - ELECTRIC COIL - Google Patents

ELECTRIC COIL

Info

Publication number
DE2854520A1
DE2854520A1 DE19782854520 DE2854520A DE2854520A1 DE 2854520 A1 DE2854520 A1 DE 2854520A1 DE 19782854520 DE19782854520 DE 19782854520 DE 2854520 A DE2854520 A DE 2854520A DE 2854520 A1 DE2854520 A1 DE 2854520A1
Authority
DE
Germany
Prior art keywords
winding
tube
coil
coil according
conductor strands
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.)
Ceased
Application number
DE19782854520
Other languages
German (de)
Inventor
Erwin Klein
Hans Ing Grad Zink
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Priority to DE19782854520 priority Critical patent/DE2854520A1/en
Priority to SE7910145A priority patent/SE436950B/en
Priority to CH10952/79A priority patent/CH649861A5/en
Publication of DE2854520A1 publication Critical patent/DE2854520A1/en
Ceased 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating
    • H01F2027/328—Dry-type transformer with encapsulated foil winding, e.g. windings coaxially arranged on core legs with spacers for cooling and with three phases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00
    • H01F37/005—Fixed inductances not covered by group H01F17/00 without magnetic core

Abstract

The coil winding (1) consists of a braided wire which consists of a relatively large number of conductor strands which are interleaved with one another in the form of a flexible tube in such a manner that the individual conductor strands change their position on the circumference of the flexible tube to such an extent that they in each case assume every possible position with respect to the flexible tube axis, at least over the length of one turn of the winding in each case. A tube (4) through which a coolant flows is wound with the winding (1), which tube (4) has a flattened profile and consists of a non-magnetic, electrically insulating material. The coil is finally potted, with a potting resin (9), in a vacuum. The invention is suitable for commutating inductors, which can be highly loaded, for converter installations. <IMAGE>

Description

Elektrische Spule Electric coil

Die Erfindung betrifft eine elektrische Spule, insbesondere eine Kommutierungsdrossel für Stromrichteranlagen, mit einer Wicklung aus Litzendraht, der aus einer größeren Anzahl von Leitersträngen besteht, welche schlauchförmig in einer solchen Weise miteinander verflochten sind, daß die einzelnen Leiterstränge ihre Lage am Umfang des Schlauches soweit wechseln, daß sie mindestens auf die Länge einer Windung der Wicklung jeweils jede mögliche Lage zur Schlauchachse einnehmen, und ist ein Zusatz zum Patent .... (Patentanmeldung P 26 58 774.6).The invention relates to an electrical coil, in particular a commutation reactor for power converter systems, with a winding made of stranded wire, which consists of a larger one Number of conductor strands is made, which are tubular in such a way are intertwined so that the individual conductor strands their position on the circumference of the hose change so far that it is at least the length of one turn of the Winding take every possible position to the hose axis, and is an addition for a patent .... (patent application P 26 58 774.6).

Eine derartige Spule ist im Hauptpatent beschrieben. Sie bringt eine Verringerung der Stromverdrängungseffekte und damit eine Verringerung des'Stromwärmeverluste. Dadurch läßt sich die Spule räumlich und gewichtsmäßig verkleinern, wodurch sich auch eine Verbilligung ergibt. Ein weiterer Vorteil der bei der bekannten Spule verwendeten geflochtenen Litzenleiter besteht darin, daß der Querschnitt in besonders einfacher Weise den gewünschten Bedingungen angepaßt werden kann. Insbesondere kann der Querschnitt die Form eines flachen Rechtecks erhalten. Trotz der Veränderung der Querschnittsform bleiben die guten Hochfrequenzeigenschaften erhalten.Such a coil is described in the main patent. She brings one Reduction of the electricity displacement effects and thus a reduction in electricity heat losses. As a result, the coil can be reduced in terms of space and weight, as a result of which also results in a reduction in price. Another advantage of the known coil braided stranded conductor used is that the cross-section in particularly can be easily adapted to the desired conditions. In particular, can the cross-section will be given the shape of a flat rectangle. Despite the change the cross-sectional shape retains the good high-frequency properties.

Der Vorliegenden Erfindung liegt die Aufgabe zugrunde, die Spule des Hauptpatents dahingehend weiterzubilden, daß die in den Litzenleitern entstehende Stromwärme noch besser abgeführt werden kann.The present invention has for its object to be the coil of the Main patent to the effect that the resulting in the stranded conductors Electricity heat can be dissipated even better.

Diese Aufgabe wird dadurch gelöst, daß mit der Wicklung ein von einem Kühlmittel durchströmbares Rohr mitgewickelt ist, das ein abgeflachtes Profil besitzt, mit der Wicklung engen Kontakt hat und aus einem amagnetischen, elektrisch isolierenden Material besteht.This object is achieved in that with the winding one of a A pipe through which coolant can flow is also wound, which has a flattened profile, has close contact with the winding and consists of an amagnetic, electrically insulating Material.

Damit ergeben sich die Vorteile, daß die in der Wicklung entstehende Wärme noch besser abgeführt werden kann, da Flüssigkeitskühlung anstelle der bisher verwendeten Luftkühlung möglich ist. Zur Kühlung können außerdem nicht nur isolierende Flüssigkeiten, sondern auch Wasser verwendet werden, da die Kühlflüssigkeit mit der Wicklung keinen Kontakt hat. Da das Kühlprofil aus einem elektrisch isolierenden und amagnetischen Material besteht, werden in ihm keine Wirbelströme induziert und somit keine zusätzlichen Verluste erzeugt. Die Litze besteht aus feinsten Drähtchen von ca. 0,1 mm Durchmesser und schmiegt sich somit sehr gut an das Kühlprofil an, so daß ein guter thermischer Kontakt besteht. Dadurch, daß die Litze im Verhältnis zu ihrer Dicke sehr breit gedrückt werden kann, ist der Wärmeweg in der Litze kurz und die wärmeübertragende Fläche sehr groß. Die erfindungsgemäße Spule kann somit wesentlich höher belastet werden als die Spule des Hauptpatents, die selbst schon sehr hoch belastet ist.This has the advantage that the resulting in the winding Heat can be dissipated even better, since liquid cooling instead of the previous one used air cooling is possible. Not only insulating ones can also be used for cooling Liquids but also water can be used as the cooling liquid with the winding has no contact. Since the cooling profile is made of an electrically insulating and non-magnetic material, no eddy currents are induced in it and thus no additional losses are generated. The strand consists of the finest wires 0.1 mm in diameter and therefore hugs the cooling profile very well, so that there is good thermal contact. Because the braid is in proportion can be pushed very wide to its thickness, the heat path in the braid is short and the heat transferring surface is very large. The coil according to the invention can thus are loaded much higher than the coil of the main patent, which itself is already is very heavily loaded.

Vorzugsweise besitzt das Kühlrohr ein Rechteckprofil, wobei die langen Seiten entweder eben, bikonkav oder bikonvex geformt sein können. Die jeweilige Form des Kühlprofils wird entsprechend der Bedürfnisse der Wicklung gewählt.The cooling tube preferably has a rectangular profile, the long Sides can be either flat, biconcave, or biconvex shaped. The respective The shape of the cooling profile is selected according to the needs of the winding.

Vorzugsweise ist die Wanddicke des Kühlrohrs dünn und das Rohr als Mehrkammer-Rohr mit inneren Stü zstegen ausgebildet.Preferably, the wall thickness of the cooling tube is thin and the tube as Multi-chamber tube formed with inner supports.

Dadurch bleibt der thermische Widerstand zwischen Wicklung und Kühlmittel klein und es besteht trotzdem nicht die Gefahr, daß das Kühlrohr durch den Wickelzug zusammengedrückt wird.This leaves the thermal resistance between the winding and the coolant small and there is still no risk that the cooling tube through the winding train is squeezed.

Vorzugsweise besteht das Rohr aus einem thermisch stabilen thermoplastischen Kunststoff. Derartiges Kunststoffmaterial ist ausreichend biegsam, um zusammen mit der Wicklung aufgewickelt zu werden.The pipe is preferably made of a thermally stable thermoplastic Plastic. Such plastic material is sufficiently flexible to go along with the winding to be wound.

Vorzugsweise ist die fertig gewickelte Spule mit einem Gießharz vakuumvergossen. Damit wird ein guter thermischer Kontakt sowohl der Litzendrähte untereinander als auch mit dem Kühlprofil erzeugt.The fully wound coil is preferably vacuum potted with a casting resin. This ensures good thermal contact between the litz wires and the also generated with the cooling profile.

Anhand der Zeichnung soll die Erfindung in Form eines Ausführungsbeispiels näher erläutert werden.Based on the drawing, the invention is intended to be in the form of an exemplary embodiment are explained in more detail.

Fig. 1 zeigt eine Spule in Draufsicht, geschnitten entlang der Linie I - T der Fig. 2.Fig. 1 shows a coil in plan view, sectioned along the line I - T of FIG. 2.

Fig. 2 zeigt eine Spule in Seitenansicht, teilweise geschnitten entlang der Linie II - II der Fig. 1.Fig. 2 shows a spool in side view, partially cut along the line II - II of FIG. 1.

Man erkennt eine hochfle-iblee geflochtene Litze 1 mit angelöteten elektrischen Anschlüssen 2, 3 die gemeinsam mit einem l,uSllrohr 4, gewickelt ist . Das aus einem hochtemper atur resten Thermopl ast hergestellte Rohr4 besitzt eine dünne außenwand 5, damit der thermische Widerstand klein bleibt. Damit das Rohr 4 durch den Wickel zug nicht zusammengedrückt wird, ist es mit innenliegenden Stegen 6 versteift. Dadurch erhält das Rohr 4 mehrere Kammern. Als Anschlüsse zur Zuführung der Kühlflüssigkeit sind Schlauchtüllen 7,8 aus Kunststoff vorgesehen, die an das Ende 10 des Kühlrohrs 4 angeschweißt sind. Die Spule wurde nach dem Wickeln von Wicklung 1 und Kühlrohr 4 in einer Form mit Gießharz 9 umgossen. Das geschieht unter Vakuum, damit ein guter thermischer Kontakt sowohl der Litzendrähte untereinander als auch mit dem Kühlprofil erfolgt.One recognizes a highly flexible braided strand 1 with soldered on electrical connections 2, 3 which is wound together with an oil pipe 4 . The tube4 made from a high-temperature residual thermoplastic has a thin outer wall 5, so that the thermal resistance is small remain. So that the tube 4 is not compressed by the winding train, it is with internal Stiffeners 6 stiffened. This gives the tube 4 several chambers. As connections to the To supply the cooling liquid, hose nozzles 7, 8 made of plastic are provided, which are welded to the end 10 of the cooling pipe 4. The coil was after winding of winding 1 and cooling tube 4 encased in a mold with casting resin 9. This happens under vacuum, so that there is good thermal contact between the stranded wires as well as with the cooling profile.

LeerseiteBlank page

Claims (6)

A n s p r ü 9 h Elektrische Spule, insbesondere Kommutierungsdrossel füromrichteranlagen, mit einer Wicklung aus Litzendraht, der aus einer größeren Anzahl von Leitersträngen besteht, welche schlauchförmig in einer solchen Weise miteinander verflochten sind, daß die einzelnen Leiterstränge ihre Lage am Umfang des Schlauches so weit wechseln, daß sie mindestens auf die Länge einer Windung der Wicklung jeweils jede mögliche Lage zur Schlauchachse einnehmen, nach Patent (Patentanmeldung P 26 58 774.6), dadurch gekennzeichnet, daß mit der Wicklung (1) ein von einem Kühlmittel durchströmbares Rohr (4) mitgewickelt ist, das ein abgeflachtes Profil besitzt, mit der Wicklung engen Kontakt hat und aus einem amagnetischen, elektrisch isolierenden Material besteht. A n s p r ü 9 h Electric coil, especially commutation choke for converter systems, with a winding of stranded wire, which consists of a larger Number of conductor strands is made, which are tubular in such a way are intertwined so that the individual conductor strands their position on the circumference Change the hose so far that it is at least the length of one turn the winding take every possible position to the hose axis, according to the patent (Patent application P 26 58 774.6), characterized in that the winding (1) a pipe (4) through which a coolant can flow is wound, which is a flattened one Profile, has close contact with the winding and consists of an amagnetic, electrically insulating material. 2. Spule nach Anspruch 1, dadurch gekennzeichnet, daß das Rohr (4) ein Rechteckprofil besitzt. 2. Coil according to claim 1, characterized in that the tube (4) has a rectangular profile. 3. Spule nach Anspruch 1, dadurch gekennzeichnet, daß die langen Seiten des Rohres (4) eben, bikonkav oder bikonvex ausgebildet sind. 3. Coil according to claim 1, characterized in that the long Sides of the tube (4) are flat, biconcave or biconvex. 4. Spule nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß das Rohr (4) ein Mehrkammer-Rohr mit inneren Stützstegen (6) ist und eine dünne Wanddicke besitzt. 4. Coil according to claim 1, 2 or 3, characterized in that the Tube (4) is a multi-chamber tube with inner support webs (6) and a thin wall thickness owns. 5. Spule nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, daß das Rohr (4) aus einem thermisch stabilen, thermoplastischen Kunststoff besteht. 5. Coil according to claim 1, 2, 3 or 4, characterized in that the tube (4) consists of a thermally stable, thermoplastic material. 6. Spule nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß sie mit einem Gießharz (9) vakuumvergossen sind. 6. Coil according to claims 1 to 5, characterized in that they are vacuum cast with a casting resin (9).
DE19782854520 1978-12-16 1978-12-16 ELECTRIC COIL Ceased DE2854520A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19782854520 DE2854520A1 (en) 1978-12-16 1978-12-16 ELECTRIC COIL
SE7910145A SE436950B (en) 1978-12-16 1979-12-10 ELECTRIC COIL
CH10952/79A CH649861A5 (en) 1978-12-16 1979-12-11 Electrical coil, especially for converter installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782854520 DE2854520A1 (en) 1978-12-16 1978-12-16 ELECTRIC COIL

Publications (1)

Publication Number Publication Date
DE2854520A1 true DE2854520A1 (en) 1980-06-26

Family

ID=6057476

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782854520 Ceased DE2854520A1 (en) 1978-12-16 1978-12-16 ELECTRIC COIL

Country Status (3)

Country Link
CH (1) CH649861A5 (en)
DE (1) DE2854520A1 (en)
SE (1) SE436950B (en)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3032399A1 (en) * 1980-08-28 1982-04-01 Brown, Boveri & Cie Ag, 6800 Mannheim SUPRAL-CONDUCTING
DE3743222A1 (en) * 1987-12-19 1989-06-29 Asea Brown Boveri Cooled inductor coil for converter installations
EP0459326A1 (en) * 1990-06-01 1991-12-04 ABBPATENT GmbH Liquid cooled choke coil
DE4121204A1 (en) * 1991-06-27 1993-01-14 Flohe Gmbh & Co WATER-COOLED THROTTLE FOR HIGH CURRENT SYSTEMS
DE4202021A1 (en) * 1992-01-25 1993-07-29 Abb Patent Gmbh Utility or mains supply water-cooled choke with coolant separated from coil - has partial coils arranged in toroid with their windings in coolant housing and contacts through wall and connected outside
WO1998034241A1 (en) * 1997-02-03 1998-08-06 Asea Brown Boveri Ab Method and device in manufacturing a transformer/reactor
US6261437B1 (en) 1996-11-04 2001-07-17 Asea Brown Boveri Ab Anode, process for anodizing, anodized wire and electric device comprising such anodized wire
US6279850B1 (en) 1996-11-04 2001-08-28 Abb Ab Cable forerunner
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
US6369470B1 (en) 1996-11-04 2002-04-09 Abb Ab Axial cooling of a rotor
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
WO2002043085A1 (en) * 2000-11-23 2002-05-30 Bombardier Transportation Gmbh Medium frequency transformer
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
US6439497B1 (en) 1997-02-03 2002-08-27 Abb Ab Method and device for mounting a winding
US6465979B1 (en) 1997-02-03 2002-10-15 Abb Ab Series compensation of electric alternating current machines
US6525265B1 (en) 1997-11-28 2003-02-25 Asea Brown Boveri Ab High voltage power cable termination
US6525504B1 (en) 1997-11-28 2003-02-25 Abb Ab Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6577487B2 (en) 1996-05-29 2003-06-10 Asea Brown Boveri Ab Reduction of harmonics in AC machines
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports
WO2003107364A1 (en) * 2001-12-21 2003-12-24 Abb T & D Technology Ltd. Integrated cooling duct for resin-encapsulated distribution transformer coils
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6825585B1 (en) 1997-02-03 2004-11-30 Abb Ab End plate
US6828701B1 (en) 1997-02-03 2004-12-07 Asea Brown Boveri Ab Synchronous machine with power and voltage control
US6831388B1 (en) 1996-05-29 2004-12-14 Abb Ab Synchronous compensator plant
DE102011007334A1 (en) 2011-04-13 2012-10-18 Karl E. Brinkmann GmbH Liquid-cooled inductive component
EP2444983A3 (en) * 2010-10-19 2012-11-07 General Electric Company Liquid cooled magnetic component with indirect cooling for high frequency and high power applications

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2258600A1 (en) * 1972-11-06 1974-05-16 Bbc Brown Boveri & Cie IMPRAEGNATED WINDING AND METHOD OF MANUFACTURING IT

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2258600A1 (en) * 1972-11-06 1974-05-16 Bbc Brown Boveri & Cie IMPRAEGNATED WINDING AND METHOD OF MANUFACTURING IT

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-PS 26 58 774, AT 24.12.76 *

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3032399A1 (en) * 1980-08-28 1982-04-01 Brown, Boveri & Cie Ag, 6800 Mannheim SUPRAL-CONDUCTING
DE3743222A1 (en) * 1987-12-19 1989-06-29 Asea Brown Boveri Cooled inductor coil for converter installations
EP0459326A1 (en) * 1990-06-01 1991-12-04 ABBPATENT GmbH Liquid cooled choke coil
DE4017750A1 (en) * 1990-06-01 1991-12-05 Abb Patent Gmbh LIQUID-COOLED THROTTLE COIL
DE4121204A1 (en) * 1991-06-27 1993-01-14 Flohe Gmbh & Co WATER-COOLED THROTTLE FOR HIGH CURRENT SYSTEMS
DE4202021A1 (en) * 1992-01-25 1993-07-29 Abb Patent Gmbh Utility or mains supply water-cooled choke with coolant separated from coil - has partial coils arranged in toroid with their windings in coolant housing and contacts through wall and connected outside
US6831388B1 (en) 1996-05-29 2004-12-14 Abb Ab Synchronous compensator plant
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6577487B2 (en) 1996-05-29 2003-06-10 Asea Brown Boveri Ab Reduction of harmonics in AC machines
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6261437B1 (en) 1996-11-04 2001-07-17 Asea Brown Boveri Ab Anode, process for anodizing, anodized wire and electric device comprising such anodized wire
US6279850B1 (en) 1996-11-04 2001-08-28 Abb Ab Cable forerunner
US6369470B1 (en) 1996-11-04 2002-04-09 Abb Ab Axial cooling of a rotor
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
AU725116B2 (en) * 1997-02-03 2000-10-05 Abb Ab Method and device in manufacturing a transformer/reactor
US6439497B1 (en) 1997-02-03 2002-08-27 Abb Ab Method and device for mounting a winding
US6465979B1 (en) 1997-02-03 2002-10-15 Abb Ab Series compensation of electric alternating current machines
WO1998034241A1 (en) * 1997-02-03 1998-08-06 Asea Brown Boveri Ab Method and device in manufacturing a transformer/reactor
US6828701B1 (en) 1997-02-03 2004-12-07 Asea Brown Boveri Ab Synchronous machine with power and voltage control
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports
US6825585B1 (en) 1997-02-03 2004-11-30 Abb Ab End plate
US6525504B1 (en) 1997-11-28 2003-02-25 Abb Ab Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6525265B1 (en) 1997-11-28 2003-02-25 Asea Brown Boveri Ab High voltage power cable termination
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices
WO2002043085A1 (en) * 2000-11-23 2002-05-30 Bombardier Transportation Gmbh Medium frequency transformer
WO2003107364A1 (en) * 2001-12-21 2003-12-24 Abb T & D Technology Ltd. Integrated cooling duct for resin-encapsulated distribution transformer coils
US7023312B1 (en) 2001-12-21 2006-04-04 Abb Technology Ag Integrated cooling duct for resin-encapsulated distribution transformer coils
CN100514514C (en) * 2001-12-21 2009-07-15 Abbt&D技术有限公司 Transformer nad transformer coil therefor
US7647692B2 (en) 2001-12-21 2010-01-19 Abb Technology Ag Method of manufacturing a transformer coil having cooling ducts
EP2444983A3 (en) * 2010-10-19 2012-11-07 General Electric Company Liquid cooled magnetic component with indirect cooling for high frequency and high power applications
US8928441B2 (en) 2010-10-19 2015-01-06 General Electric Company Liquid cooled magnetic component with indirect cooling for high frequency and high power applications
DE102011007334A1 (en) 2011-04-13 2012-10-18 Karl E. Brinkmann GmbH Liquid-cooled inductive component

Also Published As

Publication number Publication date
SE436950B (en) 1985-01-28
SE7910145L (en) 1980-06-17
CH649861A5 (en) 1985-06-14

Similar Documents

Publication Publication Date Title
DE2854520A1 (en) ELECTRIC COIL
DE19839987C2 (en) Directly cooled magnetic coil, in particular gradient coil, and method for the production of conductors therefor
DE2927312C2 (en)
DE3305007C2 (en)
EP2294591B1 (en) Water-cooled reactor
DE69723435T2 (en) CONTROLLABLE INDUCTOR
EP2068426B1 (en) Electric coil conductor with rectangular cross-section
DE60027752T2 (en) ELECTRIC MACHINE WITH A WINDING
DE3029416A1 (en) POWERFUL TRANSFORMER OR THROTTLE
EP0133220A2 (en) Electric conductor
DE102011007334A1 (en) Liquid-cooled inductive component
DE1917211A1 (en) Electrical device with a support body
DE1514708A1 (en) Liquid-cooled solenoid
DE102011080827A1 (en) Winding and method for producing a winding with a cooling channel
DE19818132A1 (en) DC transformer for motor vehicle window heater
DE2836283C2 (en) Electrical device winding
DE1464556C3 (en) Induction system with a water-cooled induction coil and a water-cooled compensation capacitor connected in series with this
DE99641C (en)
DE69734287T2 (en) DIVING HEATER FOR CORROSIVE LIQUIDS AND USE THEREOF
AT110190B (en) Multiple high voltage cables.
DE2832826C3 (en) Device for cooling an electric power line
DE864897C (en) Bars for electrical machines and apparatus
AT126514B (en) High voltage electrical cable.
DE1565415C (en) Induction heating device, in particular for plastics processing devices
DE701149C (en) Thin-wire, mechanically relieved resistance element

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
AF Is addition to no.

Ref country code: DE

Ref document number: 2658774

Format of ref document f/p: P

8131 Rejection