Effect of Organic Additives, Gas Phase, Stress, and Temperature on the Gassing Characteristics of Insulating Liquids
- 1 September 1972
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electrical Insulation
- Vol. EI-7 (3) , 145-152
- https://doi.org/10.1109/tei.1972.299198
Abstract
This paper describes the effects of adding small concentrations of organic additives (anthraquinone, benzophenone, and diphenyl) to transformer oil on its gassing characteristics under different gas phases (H2, N2, O2, and air), different stresses and different temperatures. The results show that there exists an optimum concentration for each of the additives used. The optimum concentrations were found to be independent of the gas phase used. Also, for a given test liquid the results indicate the presence of an optimum stress for both gas-evolving and gas-absorbing oils. The results obtained are explained in terms of the free radical mechanism for gassing of oils under electrical stress.Keywords
This publication has 6 references indexed in Scilit:
- Effect of organic additives on electrical breakdown in transformer oil and liquid paraffinProceedings of the Institution of Electrical Engineers, 1965
- New criterion of the gassing tendencies of insulating oilsProceedings of the Institution of Electrical Engineers, 1965
- Detection of Incipient Faults in Transformers by Gas AnalysisTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1961
- Gassing of Liquid Dielectrics under Electrical StressIndustrial & Engineering Chemistry, 1955
- Influence of Gaseous Electric Discharge on Hydrocarbon OilsIndustrial & Engineering Chemistry, 1938
- Generation and absorption of gas in insulating oils under the influence of an electric dischargeJournal of the Institution of Electrical Engineers, 1936