Title :
An innovative method for cooling oil-immersed transformers by Rayleigh-Bénard convection
Author_Institution :
Electrical Engineering Department, Cahua R&D Center, North Vancouver, Canada
Abstract :
Review of the prior technologies for natural cooling oil-immersed electric transformers. Introduction of Rayleigh-Bénard convection and the principle of subcooled liquid boiling heat transfer. An innovative cooling method by Rayleigh-Bénard convection and the transformer structure with tank-top radiators are presented. Detail calculations are made on the heat transfer and heat dissipation of the radiator. A 3400 kVA prototype and its temperature rise are tested.
Keywords :
Cooling Method; Oil-immersed; Rayleigh-Bénard Convection; Tank-top Radiator; Transformer;
Conference_Titel :
T&D Conference and Exposition, 2014 IEEE PES
Conference_Location :
Chicago, IL, USA
DOI :
10.1109/TDC.2014.6863417
