Title :
Charging tendency in transformer oil
Author :
Poovamma, P.K. ; Jagadish, R. ; Dwarakanath, K.
Author_Institution :
Central Power Res. Inst., Bangalore, India
Abstract :
Many failures in large forced-oil-cooled power transformers have been specifically attributed to static electrification, due to the flow of insulating oil. For this reason detailed investigations of some of the important parameters, such as flow rate, moisture content, temperature, extent of aging, and presence of copper, affecting the charging tendency of the oil have been carried out by employing a ministatic tester and a spinning disk system with paraffinic based oil. It is observed that the aforementioned parameters significantly influence the charging tendency of the oil
Keywords :
insulating oils; power transformers; static electrification; transformer insulation; charging tendency; extent of aging; flow of insulating oil; flow rate; forced-oil-cooled power transformers; moisture content; paraffinic based oil; static electrification; temperature; transformer oil; Aging; Copper; Moisture; Oil insulation; Petroleum; Power transformer insulation; Power transformers; Spinning; System testing; Temperature;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0565-5
DOI :
10.1109/CEIDP.1992.283178
