Hazards of Interpretation of Dissipation-Factor Tip-Up Deterninations
- 1 February 1978
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electrical Insulation
- Vol. EI-13 (1) , 9-13
- https://doi.org/10.1109/tei.1978.298093
Abstract
Several contributions to the study of empirical correlation between tip-up and insulation life are reviewed. In addition to the published literature some previously unpublished field measurements are cited. Some investigators report favorable correlation while others report the contrary. Our own experience on two different insulation systems indicates that the extent and the nature of correlation is dependent on the kind of insulation system which is being evaluated. It is concluded that tip-up determinations can have their uses in weeding out unusual and atypical insulation. The absolute level of tip-up will be a function of the kind of insulation system being tested, and variations among systems can be completely uncorrelated with performance.Keywords
This publication has 4 references indexed in Scilit:
- Aging Properties of Mica Insulation Systems Impregnated with Solventless Resin for Generator Stator CoilsIEEE Transactions on Electrical Insulation, 1973
- AC Breakdown of Epoxy Resins by Partial Discharges in VoidsIEEE Transactions on Electrical Insulation, 1968
- Evaluation of Generator Windings Based on in-Stator Single-Coil Power Factor MeasurementsTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1961
- Evaluation of the Internal Insulation of Generator Coils Based on Power-Factor MeasurementsTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1959