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1. US20010032718 - System and method for cooling transformers

Office
United States of America
Application Number 09790827
Application Date 22.02.2001
Publication Number 20010032718
Publication Date 25.10.2001
Publication Kind A1
IPC
F24H 9/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL
9Details
02Casings; Cover lids; Ornamental panels
F24H 3/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL
3Air heaters having heat generating means
H01F 27/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
02Casings
F28F 9/26
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
9Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
26Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F28F 1/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
10Tubular elements or 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
F28F 1/36
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
1Tubular elements; Assemblies of tubular elements
10Tubular elements or 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
34and extending obliquely
36the means being helically-wound fins or wire spirals
Applicants Unifin International, Inc.
Inventors Sheerin Geoffrey Thomas
Corke Christopher C.
Brescacin Laurie John
Agents Joan Optican Herman SHOOK, HARDY &; BACON L.L.P.
Priority Data 09790827 22.02.2001 US
60184520 24.02.2000 US
Title
(EN) System and method for cooling transformers
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.


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