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1. WO2001063629 - SYSTEM AND METHOD FOR COOLING TRANSFORMERS

Publication Number WO/2001/063629
Publication Date 30.08.2001
International Application No. PCT/CA2001/000195
International Filing Date 20.02.2001
Chapter 2 Demand Filed 13.09.2001
IPC
H01F 27/02 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
02Casings
CPC
F28D 1/0233
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
1Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
02with heat-exchange conduits immersed in the body of fluid
0233with air flow channels
F28D 2021/0031
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
21Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
0028for cooling heat generating elements, e.g. for cooling electronic components or electric devices
0031Radiators for recooling a coolant of cooling systems
F28F 1/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
12the means being only outside the tubular element
14and extending longitudinally
16the means being integral with the element, e.g. formed by extrusion
F28F 1/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
12the means being only outside the tubular element
14and extending longitudinally
16the means being integral with the element, e.g. formed by extrusion
18the element being built-up from finned sections
F28F 1/22
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
12the means being only outside the tubular element
14and extending longitudinally
22the means having portions engaging further tubular elements
H01F 27/025
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
02Casings
025Constructional details relating to cooling
Applicants
  • UNIFIN INTERNATIONAL, INC. [CA]/[CA]
Inventors
  • SHEERIN, Geoffrey, Thomas
  • CORKE, Christopher, C.
  • BRESCACIN, Laurie, John
Agents
  • MCGRAW, James
Priority Data
60/184,52024.02.2000US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR COOLING TRANSFORMERS
(FR) SYSTEME ET PROCEDE DE REFROIDISSEMENT DE TRANSFORMATEURS
Abstract
(EN) A system and method are provided for cooling transformers utilizing a fluid to air heat exchanger to cool dielectric fluid flowing through the transformer. The system includes multiple vertical cooling tubes in fluid communication with the transformer to cool the dielectric fluid. The tubes are configured to create vertical air passages such that the system utilizes natural convection air flow and thermal siphoning to cool the fluid.
(FR) La présente invention concerne un système et un procédé permettant de refroidir des transformateurs au moyen d'un échangeur thermique à air servant à refroidir un fluide diélectrique circulant à travers le transformateur. Le système comprend de multiples tubes de refroidissement verticaux se trouvant en communication fluidique avec le transformateur de manière à refroidir le fluide diélectrique. Les tubes sont conçus pour produire des passages d'air verticaux de sorte que le système se sert d'un flux d'air de convection naturel et du siphonnement thermique pour refroidir le fluide.
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