PD characteristics and mechanisms in artificial air-filled voids at room and liquid nitrogen temperatures

S. Tsuru; M. Nakamura; T. Mine; K. Sakai; J. Suehiro; M. Hara

doi:10.1109/94.752008

PD characteristics and mechanisms in artificial air-filled voids at room and liquid nitrogen temperatures

S. Tsuru, M. Nakamura, T. Mine, K. Sakai, J. Suehiro, M. Hara

Applied Energy Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

In this study, partial discharge (PD) characteristics in artificial air-filled voids at room and liquid nitrogen temperatures were investigated experimentally. It was found that minimum PD inception voltage at liquid nitrogen temperature (77 K) decreased with decrease in ambient temperature due to condensation of oxygen in the void. By observation of PD current pulses and light images, it was found that there were three modes of discharge: streamer, Townsend and glow-like discharges in PD at room and liquid nitrogen temperatures. Especially the mode at liquid nitrogen temperature changes markedly with the stress time.

Original language	English
Pages (from-to)	43-50
Number of pages	8
Journal	IEEE Transactions on Dielectrics and Electrical Insulation
Volume	6
Issue number	1
DOIs	https://doi.org/10.1109/94.752008
Publication status	Published - 1999

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1109/94.752008

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AU - Mine, T.

AU - Sakai, K.

AU - Suehiro, J.

AU - Hara, M.

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