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Physics and chemistry of partial discharge and corona. Recent advances and future challenges

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1 Author(s)
Van Brunt, R.J. ; Inst. of Standards and Technol., Gaithersburg, MA, USA

Results of recent research on physical and chemical processes in partial discharge (PD) phenomena are reviewed. The terminology used to specify different types or modes of PD are discussed in light of a general theory of electrical discharges. The limitations and assumptions inherent to present theoretical models are examined. The influence of memory propagation effects in controlling the stochastic behavior of PD is shown. Examples of experimental results are presented that demonstrate the nonstationary characteristics of PD which can be related to permanent or quasi-permanent discharge-induced modifications (aging) of the site where the PD occur. Recommendations for future research are proposed

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Dielectrics and Electrical Insulation, IEEE Transactions on  (Volume:1 ,  Issue: 5 )