With Inductor Insulating Fluid Circulating Means Patents (Class 336/57)
  • Patent number: 11355273
    Abstract: A non-liquid immersed transformer including a magnetic core having a winding axis and at least two coil windings wound around the magnetic core along the winding axis. One or more cooling tubes made of dielectric material are arranged inside at least one of the coil windings to cool down the coil winding using dielectric fluid flowing through the dielectric cooling tubes. Each cooling tube is wound continuously forming one or more complete loops around the core.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 7, 2022
    Assignee: Hitachi Energy Switzerland AG
    Inventors: Antonio Nogues Barrieras, Rafael Murillo, Martín Carlos Roy, Lorena Cebrian, Luis Sanchez Lago
  • Patent number: 11319936
    Abstract: Wind turbine installation (1) comprising a tower (2), a nacelle (3), —a liquid immersed power electrical device (6) having an expansion vessel (7), an air dehydrating breather (8) comprising a moisture absorbing agent (9), and a conduit (10) fluidly connecting the expansion vessel (7) and the air dehydrating breather (8), wherein the wind turbine installation (1) comprises a barrier (11) separating a restricted zone (12) from a non-restricted zone (13) in said wind turbine installation (1), wherein the electrical device (6) is located in the restricted zone (12), wherein the air dehydrating breather (8) is located in the non-restricted zone (12) and wherein the conduit (10) extends through the barrier (11) and a method of maintaining a wind turbine installation (1).
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: May 3, 2022
    Assignee: Vestas Wind Systems A/S
    Inventor: Jesper Hillebrandt
  • Patent number: 11322287
    Abstract: An electrical device connects to a high-voltage network and has a vessel, which is filled with an insulating fluid, an active part, which is arranged in the vessel and which has a magnetizable core and partial windings for producing a magnetic field in the core, and a cooling apparatus for cooling the insulating fluid. The electrical device is economical and at the same time can be operated at higher temperatures. This is achieved by use of at least one thermal barrier, which delimits cooling spaces, in each of which at least one partial winding is arranged. The cooling apparatus has at least two cooling units and each cooling unit being configured to cool an associated partial winding.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: May 3, 2022
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventor: Joerg Findeisen
  • Patent number: 11094439
    Abstract: Described herein are concepts, system and techniques which provide a means to construct robust high-field superconducting magnets using simple fabrication techniques and modular components that scale well toward commercialization. The resulting magnet assembly—which utilizes non-insulated, high temperature superconducting tapes (HTS) and provides for optimized coolant pathways—is inherently strong structurally, which enables maximum utilization of the high magnetic fields available with HTS technology. In addition, the concepts described herein provide for control of quench-induced current distributions within the tape stack and surrounding superstructure to safely dissipate quench energy, while at the same time obtaining acceptable magnet charge time. The net result is a structurally and thermally robust, high-field magnet assembly that is passively protected against quench fault conditions.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 17, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Brian Labombard, Robert S. Granetz, James Irby, Rui Vieira, William Beck, Daniel Brunner, Jeffrey Doody, Martin Greenwald, Zachary Hartwig, Philip Michael, Robert Mumgaard, Alexey Radovinsky, Syun'ichi Shiraiwa, Brandon N. Sorbom, John Wright, Lihua Zhou
  • Patent number: 10966353
    Abstract: A centralized cooling system for data center comprises at least one cabinet, a spray hydraulic device and a hydraulic working substance cooling equipment integrated outside the cabinet, and an outer liquid working substance tank, which are connected by a pipe, wherein the cabinet comprises an auxiliary cabinet, a server cabinet, a liquid inlet pipe, and a return pipe; wherein an inner liquid working substance tank, a main pipe and a pipe distributor are arranged inside the auxiliary cabinet; a server and a plurality of spraying mechanisms are arranged inside the server cabinet; the liquid working substance sprayed from the spraying mechanisms is returned to the outer liquid working substance tank through the return pipe, cooled down by means of the spray hydraulic device and the hydraulic circulating cooling device, and enters the inner liquid working substance tank, and the liquid working substance has no phase transition during the spraying process.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: March 30, 2021
    Assignee: GUANGDONG HI-1 NEW MATERIALS TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventor: Wei Wang
  • Patent number: 10892082
    Abstract: An inductor housing for housing an inductor having a core and a winding includes an outer annular wall and a third wall extending inward from the outer annular wall such that the outer annular wall and the third wall at least partially define an annular cavity configured to receive the inductor. The inductor housing further includes an attachment feature configured to couple the inductor housing to a secondary housing. The inductor is configured to be enclosed within the annular cavity and the secondary housing, and coolant from a coolant supply is configured to flow past the annular cavity and contact the winding of the inductor.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: January 12, 2021
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Mark W. Metzler, Debabrata Pal, Mustansir Kheraluwala, Charles Patrick Shepard
  • Patent number: 10854369
    Abstract: A transformer station, in particular, an offshore transformer station including at least one transformer and at least one transformer cooling unit arranged on at least one side wall of the transformer station or a roof of the transformer station and configured to cool the at least one transformer. The transformer station also includes at least one air deflecting unit arranged on at least one roof edge of the transformer station and/or at least one air deflecting unit arranged on at least one side edge of the transformer station. The air deflecting unit is arranged such that an air movement is deflectable in the direction of the transformer cooling unit.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: December 1, 2020
    Assignee: innogy SE
    Inventor: Jörn Runge
  • Patent number: 10732241
    Abstract: A method of manufacturing includes producing a gradient coil assembly having one or more cooling channels for a magnetic resonance imaging system by a process that includes printing a cooling channel template having a first end, a second end, and a hollow passage extending between the first end and the second end, disposing a dielectric material over at least a portion of the cooling channel template to generate a dielectric layer having the cooling channel template, and removing the cooling channel template from the dielectric layer to thereby produce the one or more cooling channels within the dielectric layer such that the one or more cooling channels have a pattern corresponding to a geometry of the cooling channel template.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: August 4, 2020
    Assignee: GE Precision Healthcare LLC
    Inventors: Naveenan Thiagarajan, Eric George Budesheim, Dominic Michael Graziani
  • Patent number: 10626853
    Abstract: A wind turbine having a nacelle, with at least one liquid circuit with a coolant, a cooling section for cooling a component of the wind turbine using the coolant, a cooler for cooling the coolant, a piping system for conveying the coolant and an expansion tank for obtaining an operating pressure of the liquid circuit, wherein the expansion tank establishes a pressure in the liquid circuit using static pressure of a liquid column.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: April 21, 2020
    Assignee: Wobben Properties GmbH
    Inventor: Kai Enskonatus
  • Patent number: 10537046
    Abstract: In one aspect, a medium voltage power converter includes a cabinet having: a power cube bay to house a plurality of power cubes, each of the plurality of power cubes adapted within a corresponding enclosure and comprising a low frequency front end stage, a DC link and a high frequency back end stage, the plurality of power cubes to couple to a high speed machine; and a plurality of first barriers adapted to isolate and direct a first flow of cooling air through one of the plurality of power cubes; and a transformer bay having at least one transformer to couple between a utility connection and the plurality of power cubes, the transformer bay including a plurality of cooling fans to cool the at least one transformer.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 14, 2020
    Assignee: TECO-WESTINGHOUSE MOTOR COMPANY
    Inventors: Enrique Ledezma, Bhaskara Palle, Rose Metzler
  • Patent number: 10483028
    Abstract: The first wall has a first inbound cavity for receiving a coolant from an inlet port. The first wall has a first outbound cavity for directing the coolant from the inbound cavity to the input of the transition passage. The second wall has a second inbound cavity for receiving a coolant from the output of the transition passage. The second wall has a second outbound cavity for directing the coolant from the inbound cavity to the outlet port. The transition passage comprises a transverse hollow volume for interconnecting the first outbound cavity of the first wall to the second inbound cavity of a second wall. At least one heat-generating component (e.g., inductor) in the interior of the housing generates heat that is dissipated.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: November 19, 2019
    Assignee: DEERE & COMPANY
    Inventors: Thomas J. Roan, Erich J. Drees, David M. Loken, Christopher J. Schmit
  • Patent number: 10304609
    Abstract: An embodiment of the present invention relates to an enclosure for a voltage transformer, including a shell. The shell is provided with a plurality of packaging spaces for packaging bodies of the voltage transformer. Each of the packaging spaces is provided with a closed end and a sealed end, and every two adjacent packaging spaces are in communication with each other. In the enclosure for a voltage transformer of an embodiment of the present invention, the size of the enclosure for a voltage transformer along an arrangement direction is reduced, as a result of which, the entire enclosure for a voltage transformer has a compact structure and a small occupied space. An embodiment of the present invention further relates to a voltage transformer including the above-mentioned enclosure for a voltage transformer.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: May 28, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Jie Wang, Xiao Hong Zhang
  • Patent number: 9449755
    Abstract: An exemplary arrangement includes blocks arranged between the inner winding, the individual barriers and the outer winding in order to maintain defined spacing's along the circumference. At least two coils are arranged axially one above the other on a common core limb. Each coil has at least two windings arranged radially one above the other and barriers are provided between the windings. The barriers of adjacent coils are radially offset with respect to one another, and the edge regions of the barriers engage one another in a comb-like manner.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: September 20, 2016
    Assignee: ABB TECHNOLOGY AG
    Inventors: Benjamin Weber, Bhavesh Patel, Burak Esenlik, Frank Cornelius, Marcos Bockholt, Jens Tepper
  • Patent number: 9373436
    Abstract: An inductor assembly includes an inductor core, a winding, and a coolant conduit. The inductor core defines a cavity and the winding is disposed about the inductor core such that a portion of the winding is disposed within the cavity. The coolant conduit extends from a first end of the cavity towards an opposed second end of the cavity and includes an inlet port and an outlet port in fluid communication with each other through the coolant conduit.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: June 21, 2016
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Debabrata Pal
  • Patent number: 9208936
    Abstract: An encapsulated delta transformer for medium to high voltages includes a hermetically sealed housing that encloses a volume, a delta shaped transformer arranged in the housing, and a passageway for a fluid. The passageway protruding through the housing and the volume enclosed by the passageway is in fluidal connection to an outside of the housing.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: December 8, 2015
    Assignee: ABB RESEARCH LTD
    Inventors: Jasmin Smajic, Arthouros Iordanidis, Bernardo Galletti, Thorsten Steinmetz, Bernhard Petermeier
  • Patent number: 9142338
    Abstract: An exemplary oil transformer insulation module includes at least a first flat layer and a second layer adjacent and substantially and parallel to the first layer. The first and second layers include planar first insulation material and are connected to and spaced apart from a third corrugated layer that is arranged between the first and second layers. The third layer includes planar second insulation material, has lateral edges, and is corrugated such that all the cavities formed by the corrugated form can be flooded with a liquid via the lateral edges.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: September 22, 2015
    Assignee: ABB TECHNOLOGY AG
    Inventor: Hartmut Brendel
  • Patent number: 9041502
    Abstract: An electromagnetic device arrangement includes a transformer assembly having a core, windings, and a housing disposed around at least a portion of the core and windings. An enclosure at least partially encloses the transformer assembly. The transformer assembly is mounted to a first portion of the enclosure such that heat is transferred from the transformer assembly to the first portion of the enclosure. A second portion of the enclosure has an extension extending therefrom such that the extension is placed in thermal contact with the transformer assembly to transfer heat from the transformer assembly to the extension.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: May 26, 2015
    Assignee: Lear Corporation
    Inventors: Ajmal Ansari, Nadir Sharaf, Slobodan Pavlovic
  • Publication number: 20150137925
    Abstract: According to one embodiment, a contactless power transfer transformer includes a both-sides wound coil. The both-sides wound coil includes an inter-magnetic-pole core portion between two magnetic pole portions. The winding wire is wound around a wound region of the inter-magnetic-pole core portion. The inter-magnetic-pole includes: a plurality of separate magnetic members that connect to each of the two magnetic pole portions, and are arranged with a spacing therebetween and in parallel with each other; and a heat conductor that is alternately arranged with respect to the separate magnetic members on a plane formed by the separate magnetic members so as to be in contact with the separate magnetic members. Heat generated by the separate magnetic members is guided to the outside of the wound region of the inter-magnetic-pole core portion through the heat conductor, and is dissipated.
    Type: Application
    Filed: June 5, 2013
    Publication date: May 21, 2015
    Applicant: TECHNOVA INC.
    Inventors: Shigeru Abe, Yasuyoshi Kaneko, Tomio Yasuda
  • Publication number: 20150123756
    Abstract: An electrical device includes a winding including an interior portion and an exterior surface, a primary cooling system for cooling the exterior surface of the winding, a secondary cooling system for cooling the interior portion of the winding, and a heat exchanger thermally coupled to the primary cooling system and the secondary cooling system.
    Type: Application
    Filed: January 5, 2015
    Publication date: May 7, 2015
    Applicant: Elwha LLC
    Inventors: Roderick A. Hyde, Jordin T. Kare, Lowell L. Wood, JR.
  • Patent number: 8941036
    Abstract: The present invention provides a heating unit capable of easily and inexpensively adjusting total impedance based on tire mold size so that a power source can be used at a high power factor, and a tire heating apparatus using the same. A ferromagnetic metallic member 10a heats a tire mold M1 by heat conduction. An induction heating coil C1 is disposed on the side of the ferromagnetic metallic member 10a opposite the tire mold M1 to induction-heat the ferromagnetic metallic member 10a by generating magnetic field lines. A nonmagnetic conductor 30a is disposed on the side of the induction heating coil C1 opposite the ferromagnetic metallic member 10a to shield the magnetic field lines generated by the induction heating coil C1. A heating unit 100a including these elements heats the tire mold M1 storing a tire.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: January 27, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazuto Okada, Hideaki Kuwabara, Hisashi Mitamura, Tomomichi Murata, Masatake Toshima, Yasuhiko Fujieda
  • Patent number: 8928442
    Abstract: The object of the invention is an inductive component equipped with a liquid cooling and a method for manufacturing an inductive component. The inductive component comprises at least a core (2) assembled from separate structural elements (8, 8a, 8b), a winding (5), and connection means (7) as well as ducts (9) integrated into the core (2) for the purpose of liquid cooling. Each structural element (8, 8a, 8b) comprises an aperture (9a, 13, 18) made in the manufacturing phase of the structural element (8, 8a, 8b), which aperture extends through the structural element and is a short part of the duct (9) intended for the purpose of liquid cooling.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: January 6, 2015
    Assignee: Earl Energy, LLC
    Inventor: Jarkko Salomäki
  • Patent number: 8928443
    Abstract: An electrical device includes a winding, a primary cooling system, a secondary cooling system, and an actuator. The winding includes an interior portion and an exterior surface. The primary cooling system cools the exterior surface of the winding. The secondary cooling system cools the interior portion of the winding. The actuator is configured to actuate the secondary cooling system in response to a sensed condition of the electrical device or a predicted condition of the electrical device.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: January 6, 2015
    Assignee: Elwha LLC
    Inventors: Roderick A. Hyde, Jordin T. Kare, Lowell L. Wood, Jr.
  • Patent number: 8928441
    Abstract: A magnetic component such as a transformer or inductor comprises one or more litz-wire windings and one or more metallic cooling tube windings. Each litz-wire winding is wound together with a corresponding single metallic cooling tube winding on a common bobbin to provide an indirectly-cooled magnetic component.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: January 6, 2015
    Assignee: General Electric Company
    Inventors: Satish Prabhakaran, Konrad Roman Weeber, Richard S. Zhang, Charles Michael Stephens, Mark Edward Dame, Yang Cao
  • Patent number: 8922310
    Abstract: Exemplary embodiments are directed to a heat exchanger system for transformers or reactors having at least one coil being cooled by gaseous fluids circulating around the transformer. The system having an enclosure that houses the transformer and the at least one coil, where flow of cooling gaseous fluid passes over the coil and is heated by the heat of the transformer or reactor the heated gas is directed to pass over a thermosiphon heat exchanger which dissipates the heat to a cooling media.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: December 30, 2014
    Assignee: ABB Technology AG
    Inventors: Benjamin Weber, Bruno Agostini, Jens Tepper, Marcos Bockholt, Stephane Schaal
  • Patent number: 8922311
    Abstract: An electrical inductor assembly includes an inductor core having a relatively circular geometry. Also included is a wire guide surrounding and retaining the inductor core, the wire guide having a plurality of slots for retaining and guiding a plurality of wires. Further included is an outer housing surrounding and retaining the wire guide and a substance disposed within at least one of the plurality of slots of the wire guide.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: December 30, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Debabrata Pal, John Horowy
  • Patent number: 8890643
    Abstract: Disclosed herein is a heat exchange type cooling apparatus for a transformer, including: an insulating oil circulation pipe configured in a closed circuit form so that an insulating oil filled in the transformer is discharged to the outside and then returns again to the transformer; an insulating oil pump configured to transfer the insulating oil; and an insulating oil cooling system configured to cool the insulating oil, wherein the insulating oil cooling system includes: a liquid refrigerant maintained in a liquid state during the entire circulation cycle; a refrigerant circulation pipe configured to circulate the liquid refrigerant; a refrigerant pump configured to transfer the liquid refrigerant; and a heat exchanging part configured to heat-exchange the liquid refrigerant and the insulating oil with each other to cool the insulating oil.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: November 18, 2014
    Inventor: Gap-Dong Kim
  • Patent number: 8884732
    Abstract: A dry-type network transformer has a core and coil windings insulated by a combustion-inhibiting gas. The combustion-inhibiting gas, core and coil windings are disposed within a hermetically-sealed enclosure. The combustion-inhibiting gas is air, an inert gas or a mixture of gases. The dry-type network transformer may be connected to a network protector. The network protector is further connected to a secondary network. The network protector prevents power from flowing from a secondary network to the primary side of the transformer. The dry-type network transformer is installed in a vault that is underground or at ground level. The dry-type network transformer may be suspended near the ceiling of the vault or installed at the base of the vault.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: November 11, 2014
    Assignee: ABB Technology AG
    Inventors: Charles W. Johnson, Samuel S. Outten
  • Publication number: 20140218148
    Abstract: A rupture resistant system, including a tank configured to increase an inner volume of the tank under increased pressure conditions, wherein the tank includes a component situated within the inner volume of the tank and susceptible to increasing pressure within the tank when under an electrical fault condition, a sidewall extending about the inner volume of the tank, and wherein the sidewall includes an interior surface and an exterior surface, a bottom wall coupled to the sidewall, and a tank cover coupled to the sidewall opposite the bottom wall, wherein the tank cover includes a first plate coupled to a second plate, wherein the second plate extends from the first plate, and the first plate extends over the sidewall and the second plate overlaps and couples to the exterior surface of the sidewall with a first joint.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: General Electric Company
    Inventors: Florian Peter Pintgen, Paul Alfred Siemers, Malcolm Graham Smith
  • Publication number: 20140197912
    Abstract: Disclosed herein is a heat exchange type cooling apparatus for a transformer, including: an insulating oil circulation pipe configured in a closed circuit form so that an insulating oil filled in the transformer is discharged to the outside and then returns again to the transformer; an insulating oil pump configured to transfer the insulating oil; and an insulating oil cooling system configured to cool the insulating oil, wherein the insulating oil cooling system includes: a liquid refrigerant maintained in a liquid state during the entire circulation cycle; a refrigerant circulation pipe configured to circulate the liquid refrigerant; a refrigerant pump configured to transfer the liquid refrigerant; and a heat exchanging part configured to heat-exchange the liquid refrigerant and the insulating oil with each other to cool the insulating oil.
    Type: Application
    Filed: August 30, 2013
    Publication date: July 17, 2014
    Inventor: Gap-Dong KIM
  • Patent number: 8742876
    Abstract: The disclosure relates to a transformer coil which can be cooled by a heat pipe and has a primary winding and a secondary winding and relates to a transformer which is formed from transformer coils which can be cooled in this way. The heat from the transformer coil is dissipated by the heat pipe. The evaporator of the heat pipe is arranged in the area of the windings and forms at least one extensive evaporator segment, which extends in the circumferential direction of the windings and along the winding axis of the transformer coil and in the process covers a multiplicity of the turns of the secondary winding.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: June 3, 2014
    Assignee: ABB Technology AG
    Inventors: Daniel Chartouni, Rafael Murillo, Tilo Bühler
  • Publication number: 20140132379
    Abstract: A vehicle is provided with a transmission that defines a chamber, and a coil that is mounted within the chamber. The coil defines a cavity. The vehicle also includes a core having at least two projections that are spaced radially outward of the coil and angularly spaced apart from each other to define openings therebetween. The core also includes first and second ends that are interconnected by a post that extends through the cavity.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 15, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Behzad Vafakhah, Shailesh Shrikant Kozarekar, Vincent Skalski
  • Patent number: 8717134
    Abstract: A system comprises a tank, a radiator connected to the tank, and a component situated within the tank and susceptible to creating increasing pressure within system when under a fault condition. The radiator is configured to directionally vent pressure under excessive pressure conditions.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: May 6, 2014
    Assignee: General Electric Company
    Inventors: Florian Peter Pintgen, Paul Alfred Siemers, Malcolm Graham Smith, Jr.
  • Patent number: 8710946
    Abstract: A rupture resistant system comprises a tank comprising a top member, a sidewall member, and a bottom member, and a component situated within the tank and susceptible to creating increasing pressure within the tank when under a fault condition. At least one of the top, sidewall, and bottom members is connected to another of the top, sidewall, and bottom members in a manner so as to cause an increase in inner volume of the tank under increased pressure conditions.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: April 29, 2014
    Assignee: General Electric Company
    Inventors: Florian Peter Pintgen, Paul Alfred Siemers, Malcolm Graham Smith, Jr.
  • Patent number: 8680959
    Abstract: An immersion cooled inductor includes an inductor at least partially submerged in cooling liquid and a localized boiling feature operable to instigate boiling of the cooling liquid prior to oversaturation.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: March 25, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Robert Scott Downing
  • Publication number: 20140009251
    Abstract: The present invention provides a transformer having assembled bobbins and a voltage transformation module having the transformer. The transformer includes a base, bobbins, secondary windings and two magnetic cores. The base is provided with a penetration hole. The bobbins are disposed in the base and each has an annular groove, a hollow portion corresponding to the penetration hole, and protrusions formed on a surface of the bobbin. The protrusions form a gap between the two adjacent bobbins when the two adjacent bobbins are assembled with each other. The secondary windings are disposed between the bobbins and each has a through-hole corresponding to the hollow portion. The two magnetic cores penetrate the penetration hole of the base, the hollow portions of the bobbins, and the through-holes of the secondary windings to assemble them together.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 9, 2014
    Inventors: Hao-Te HSU, Yung-Hung HSIAO
  • Patent number: 8614613
    Abstract: A transformer includes a tank that is attached under a floor of a vehicle, the tank being for housing an iron core, a coil, and an insulating liquid, thereby immersing the iron core and the coil in the insulating liquid; and a cooling unit for air-cooling the insulating liquid that has flowed from tank and returning the insulating liquid to tank, the cooling unit including a plurality of pipes arranged to be spaced from one another such that a spacing in a region relatively closer to floor of the vehicle is greater than a spacing in a region relatively away from floor of the vehicle.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: December 24, 2013
    Assignee: Mitsubishi Electronic Corporation
    Inventors: Toshihiro Noda, Koji Kise
  • Patent number: 8604899
    Abstract: An electrical transformer is disclosed which includes an enclosure; a magnetic core assembly arranged within the enclosure, the magnetic core assembly having a first core limb, a second core limb and a third core limb; and three coil assemblies having a first coil assembly, a second coil assembly, and a third coil assembly. At least two diaphragms are arranged within the enclosure, the diaphragms being essentially sealed to a first outermost coil of the first coil assembly, and arranged for guiding a cooling fluid in series through a first inner fluid duct, a second inner fluid duct, a third inner fluid duct and an extra-coil volume along outsides of third, second and first outermost coil coils of the third, second and first coil assemblies.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: December 10, 2013
    Assignee: Abb Research Ltd.
    Inventors: Bernardo Galletti, Arthouros Iordanidis, Jasmin Smajic, Martin Carlen
  • Patent number: 8570131
    Abstract: A transformer containing an electrical active part arranged in an insulating space and including primary and secondary winding wound around a magnetic core. and radially spaced apart from each other by a winding space having an insulation fluid. A block defines a compartment closed and separated from a remaining insulating space, the compartment being at least partially arranged within the winding space. The compartment contains an insulation fluid different from insulation fluid in the remaining insulating space, and having a higher dielectric breakdown field strength than the insulation fluid in the remaining insulating space.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: October 29, 2013
    Assignee: ABB Technology AG
    Inventor: Rafael Murillo
  • Publication number: 20130257574
    Abstract: An inductor assembly includes a substrate, an outer cylindrical housing arranged on the substrate, a wound inductor core arranged in the outer cylindrical housing, and a working fluid disposed in the outer cylindrical housing and in contact with the wound inductor core.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 3, 2013
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Robert S. DOWNING, Charles SHEPARD
  • Patent number: 8471662
    Abstract: An oil transformer insulation module includes a plurality of disc-like insulation elements of identical type which are arranged flush one above another along a line, connected to one another and have in each case at least a similar outline contour. An insulation element includes a first flat layer and a second layer adjacent and predominantly parallel thereto. The first and second layers are composed of a mechanically strong, planar first insulation material. The first and second layers of the first insulation material are connected to and spaced apart from a third, corrugated layer arranged between the first and second layers and composed of a mechanically strong, planar second insulation material. The third layer has lateral edges and is corrugated in such a way that all the cavities formed by the corrugated form can be completely flooded with a liquid via the lateral edges of the insulation element.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: June 25, 2013
    Assignee: ABB Technology AG
    Inventors: Hartmut Brendel, Matthias Starke
  • Patent number: 8461953
    Abstract: An air cooling system, method, apparatus and kit applied to lower transformer operating temperatures, such as governed by a tank or container of oil, allowing transformer components to run more efficiently at a lower temperature level, e.g., down from the hot level operating temperatures typical in stressed conventional devices. By lowering the operational levels to within or below the nominal operational temperature ranges for the equipment, and recovering heat generated during operation, several advantages are obtained.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: June 11, 2013
    Inventor: Marvin W. Ward
  • Patent number: 8436706
    Abstract: A pumped loop cooling system is provided to cool a hollow winding of a transformer utilizing a two phase vaporizable dielectric refrigerant. A liquid refrigerant pump circulates the refrigerant into a transformer and through a copper tube winding of the transformer where the refrigerant at least partially vaporizes in removing heat from the transformer. The refrigerant is then circulated to a condenser and then back to the pump.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: May 7, 2013
    Assignee: Parker-Hannifin Corporation
    Inventors: Abhijit Ashok Sathe, David Scott Gill, Robert Dale Thompson
  • Patent number: 8416042
    Abstract: To improve the cooling efficiency of a transformer operated in a wind power station, there is provided a cooling system comprising a transformer guard housing having a first opening for supply of a transformer cooling medium and having a second opening for discharge of the transformer cooling medium. Further, a first channel system supplies the transformer cooling medium to the transformer guard housing. A second channel system discharges the transformer cooling medium from the transformer guard housing. Through the provision of the cooling system, a controlled flow of cooling medium to the transformer accommodated in the transformer guard housing increases operative efficiency of the installation.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: April 9, 2013
    Assignee: Starkstrom-Geratebau GmbH
    Inventor: Arnold Schwaiger
  • Publication number: 20130063234
    Abstract: Described are methods and systems for using a planar inductor that includes a magnetically conductive core, a first planar coil and a second planar coil. The first and second planar coils are attached to a first bridge, located about the core, and are composed of a conductive material. The first and second planar coils have at least one thermally conductive surface exposed to cooling fluid. The first planar coil, the first bridge and the second planar coil are formed from a first unitary section of conductive material. The second planar coil is positioned relative to the first planar coil in a spaced relationship, which is defined by a thickness of the first bridge. An upper surface of the first planar coil is oriented toward a lower surface of the second planar coil to define a first cooling channel between the first planar coil and the second planar coil.
    Type: Application
    Filed: July 6, 2012
    Publication date: March 14, 2013
    Applicant: HYPERTHERM, INC.
    Inventors: Girish R. Kamath, Norman LeBlanc, Wayne Chin, Paul Tillman
  • Patent number: 8368498
    Abstract: [Task] There are provided a coil that is simple in structure and excellent in high frequency characteristics and a method for manufacturing the same. [Means for Resolution] The coil includes a plurality of conductor patterns 11 formed at an interval from each other on a substrate 21, and metal wires 12 that electrically connect an end of one conductor pattern of conductor patterns adjacent to each other with an end of the other conductor pattern that is an end opposite to the end of the one conductor pattern. One or more spiral shapes are formed by two or more conductor patterns 11 and one or more metal wires 12. The coil includes a core material 13 that is arranged at least in a portion inside a space surrounded by one or more spiral shapes to cover the outer peripheries of the metal wires 12 at least over a predetermined range.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: February 5, 2013
    Assignee: Anritsu Corporation
    Inventor: Makoto Saito
  • Patent number: 8305178
    Abstract: The present invention relates to a heat exchange device equipped with a primary fluid circulation loop and a secondary fluid circulation loop and installed between an electrical equipment and a superficial temperature maintaining member, such that the heat generated by the electrical equipment is transmitted by a primary side fluid of the heat exchange device, and a secondary side fluid passes through a heat equalizer installed in the superficial temperature maintaining member so as to dissipate heat through the superficial temperature maintaining member.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: November 6, 2012
    Inventor: Tai-Her Yang
  • Publication number: 20120274430
    Abstract: Exemplary embodiments are directed to a heat exchanger system for transformers or reactors having at least one coil being cooled by gaseous fluids circulating around the transformer. The system having an enclosure that houses the transformer and the at least one coil, where flow of cooling gaseous fluid passes over the coil and is heated by the heat of the transformer or reactor the heated gas is directed to pass over a thermosiphon heat exchanger which dissipates the heat to a cooling media.
    Type: Application
    Filed: May 24, 2012
    Publication date: November 1, 2012
    Applicant: ABB Technology AG
    Inventors: Benjamin Weber, Bruno Agostini, Jens Tepper, Marcos Bockholt, Stephane Schaal
  • Patent number: 8299880
    Abstract: A transformer assembly is disclosed which includes a housing and an electrical transformer having a tank which is positioned inside the housing. A device for electrically connecting the transformer to an electrical article outside the housing includes a shaped body having a first face which is suitable to be connected to one of the walls of the tank, and a second face which is suitable to be connected to one of the walls of the housing. The shaped body can include a deformable portion which is adapted to adjust the positioning of the second face relative to the wall of the housing to which it is suitable to be connected.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: October 30, 2012
    Assignee: ABB Technology AG
    Inventors: Ilario Scian, Thomas Fogelberg
  • Publication number: 20120268227
    Abstract: A pumped liquid multiphase transformer cooling system utilizes a cold plate evaporator positioned between, insulated from, and in thermal contact with, the core and winding of the transformer. The system includes a condenser and a pump to move the multiphase refrigerant through the cold plate and the condenser and back to the pump.
    Type: Application
    Filed: September 24, 2010
    Publication date: October 25, 2012
    Inventors: Jeremy Howes, Abhijit Sathe
  • Patent number: 8284004
    Abstract: A method for cooling a transformer and transformer apparatuses are implemented. A transformer apparatus, according to one embodiment, comprises: a conduction cooled electrical transformer (240) mounted to a cold plate (252); and a heat pipe (262) for supplementing cooling of the transformer (240), the heat pipe (262) comprising a first end (303), a second end (305), and a sealed low pressure cavity containing an amount of a fluid (311), wherein the first end (303) of the heat pipe (262) is located in a hot region of the transformer (240), the second end (305) is maintained colder than the first end (303) by contact with the cold plate (252), and heat produced at the first end (303) by operation of the transformer (240) is moved to the second end (305) by a closed loop vapor cycle in the sealed low pressure cavity using the fluid (311) of the heat pipe (262).
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: October 9, 2012
    Assignee: Honeywell International Inc.
    Inventor: Don A Tegart