Title :
A study of the relationship between insulating fluid viscosity and transformer cooling performance
Author :
Sundin, David ; Corkran, Jerry
Author_Institution :
Cooper Power Syst., Waukesha, WI, USA
Abstract :
Advances in the refining process for fire-resistant hydrocarbon fluids have yielded a 30% decrease in their viscosity. A study was undertaken to investigate the resulting changes in cooling performance. The results obtained show that a reduction in the viscosity of high-molecular-weight petroleum fluids yielded a lower operating temperature of the associated transformer. Lowering the viscosity of the fluid from approximately 14 to 11.5 cSt at 40°C lowered the temperatures inside the transformer between 3.0 and 5.6%, depending upon the measurement location
Keywords :
cooling; insulating oils; power transformers; transformer insulation; viscosity of liquids; fire-resistant hydrocarbon fluids; high-molecular-weight petroleum fluids; insulating fluid viscosity; operating temperature; transformer cooling performance; Cooling; Dielectrics; Hydrocarbons; Oil insulation; Petroleum; Power transformer insulation; Safety; Temperature; Testing; Viscosity;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-87942-568-7
DOI :
10.1109/ICPADM.1991.172095
