Title :
Physics and chemistry of partial discharge and corona. Recent advances and future challenges
Author_Institution :
Inst. of Standards and Technol., Gaithersburg, MA, USA
fDate :
10/1/1994 12:00:00 AM
Abstract :
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
Keywords :
ageing; corona; insulation testing; life testing; partial discharges; reviews; stochastic processes; aging; chemical processes; corona; discharge-induced modifications; insulating medium; memory propagation effects; nonstationary characteristics; partial discharge; physical processes; stochastic behavior; Aging; Chemical processes; Chemistry; Conducting materials; Corona; Dielectrics and electrical insulation; Partial discharges; Physics; Stochastic processes; Terminology;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
