Analysis of the photoelectric pluse spectra polarity effect of typical defects in SF6 gas

Nan He; Hongjing Liu; Hongliang Liu; Kewen Liu

doi:10.1117/12.2683024

16 June 2023 Analysis of the photoelectric pluse spectra polarity effect of typical defects in SF₆ gas

Nan He, Hongjing Liu, Hongliang Liu, Kewen Liu

Proceedings Volume 12703, Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023); 127030C (2023) https://doi.org/10.1117/12.2683024
Event: Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023), 2023, Hong Kong, China

Abstract

The polarity effect caused by the asymmetry and non-uniformity of electric field is one of the important basic characteristics of gas discharge, and the previous knowledge of polarity effect is mainly the differences of discharge initial voltage and electrical pulse statistical characteristics, while the lack of knowledge of the light emission characteristics and the “polarity effect” of photoelectric pulse accompanying the discharge. To better apply the optical detection and arc light monitoring in the SF₆ gas insulated system and further improve the understanding of the photoelectric pulse polarity effect, this paper builds a set of SF₆ partial discharge photoelectric simulation experimental system, and analyzes the multi-spectral photoelectric polarity effect by collecting the multi-spectral signals of insulator creepage and corona discharge with multi-spectral sensor. The research shows that there are significant differences of the amplitude and proportion of two type of discharges, among which the multispectral polarity effect of corona discharge is more obvious, with the rise of the applied voltage, the amplitude of multi-spectral signal along the surface discharge increases and the rate accelerates, while the rate of corona discharge slows down, and the proportion of UV band decreases for both discharge types, the proportion of visible band increases, and the infrared band remains low.

Citation Download Citation

Nan He, Hongjing Liu, Hongliang Liu, and Kewen Liu "Analysis of the photoelectric pluse spectra polarity effect of typical defects in SF₆ gas", Proc. SPIE 12703, Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023), 127030C (16 June 2023); https://doi.org/10.1117/12.2683024

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KEYWORDS

Electrodes

Ultraviolet radiation

Analytical research

Geographic information systems

Infrared radiation

Optical surfaces

Sensors

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