Water tree mechanism in electrical insulation
- 1 March 1976
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. 95 (2), 660-670
- https://doi.org/10.1109/t-pas.1976.32148
Abstract
A theoretical study of water tree mechanism is described. Microscopic analyses (1),(2) of water trees revealed that they are composed of many water-filled micro-voids which are less than several microns in diameter. The mechanism of the void generation is explained by the thermo-dynamics in which the electric field is considered. Based on this mechanism, the growth of water tree is explained in respect of the effect of frequency, temperature and electric field strength. This corresponds well with the results of experiments made by many researchers. Also given are the characteristics of the start points of the tree and cable containing water tree.Keywords
This publication has 2 references indexed in Scilit:
- Glass Temperatures of PolyethyleneMacromolecules, 1973
- Investigations of Water Effects on Degradation of Crosslinked Polyethylene Insulated ConductorsIEEE Transactions on Power Apparatus and Systems, 1972