Factors Affecting Stability of Electrical Insulating Oils
- 1 December 1967
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electrical Insulation
- Vol. EI-2 (3) , 150-155
- https://doi.org/10.1109/tei.1967.298859
Abstract
Attempts to understand the mechanism of dielectric loss, based on laboratory testing of petroleum-derived transformer and cable oils, have led to several important conclusions. First, soluble copper at the parts per billion level has a large adverse effect on oil stability. Second, certain compound types tend to solubilize copper and thus lead to rapid oil degradation. Third, aromatic hydrocarbons tend to preserve oil stability. Laboratory comparisons of petroleum-derived cable oils with synthetic fluids have led to the conclusion that the petroleum oils are less reactive than the synthetic fluids. New, improved petroleum oils have been developed based on the above findings, and are briefly discussed.Keywords
This publication has 4 references indexed in Scilit:
- Effect of Aromatics and Selected Additives on Oxidation Stability of Transformer OilsI&EC Product Research and Development, 1967
- Thermal Endurance of Polyester Enameled Wires Using Twisted Wire Specimens. Statistical Analysis of Test ResultsIEEE Transactions on Electrical Insulation, 1965
- The Role of Copper During the Oxidation of Transformer OilsJournal of the Electrochemical Society, 1965
- Thermal Endurance of Enameled Wires Using Twisted Wire Specimens Statistical Analysis of Test ResultsTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1961