<abstract xmlns="http://www.w3.org/1999/xhtml">This paper dealt with characteristics of partial discharge (PD) initiated by metallic particles under DC voltage in green gas for grid (g3), which is an emerging and promising eco-friendly alternative insulation gas to SF6. Experimental setup was configured to simulate PD under DC in gas-insulated power facilities. Two types of particle, namely rectangle particle and sphere particle were used. The results indicated that the discharge inception voltages in g3 gas were 90.1-92.5% of that in SF6. In two particles, PD occurred with higher average apparent charge and discharge repetition rate in g3 compared with those in <italic>SF</italic>6 gas. The time-resolved partial discharge presented similar characteristics in g3 and SF6 gas. The time interval between two successive discharge pulses were 0.1 ms-10 ms and 5 ms-15 ms in the rectangle particle and sphere particle, respectively. Results from this paper are expected to provide fundamental material for the development of <italic>SF</italic>6 -free gas-insulated power apparatus.</abstract>

This paper dealt with characteristics of partial discharge (PD) initiated by metallic particles under DC voltage in green gas for grid (g3), which is an emerging and promising eco-friendly alternative insulation gas to SF6. Experimental setup was configured to simulate PD under DC in gas-insulated power facilities. Two types of particle, namely rectangle particle and sphere particle were used. The results indicated that the discharge inception voltages in g3 gas were 90.1-92.5% of that in SF6. In two particles, PD occurred with higher average apparent charge and discharge repetition rate in g3 compared with those in SF6 gas. The time-resolved partial discharge presented similar characteristics in g3 and SF6 gas. The time interval between two successive discharge pulses were 0.1 ms-10 ms and 5 ms-15 ms in the rectangle particle and sphere particle, respectively. Results from this paper are expected to provide fundamental material for the development of SF6 -free gas-insulated power apparatus.

Green gas for grid as an eco-friendly alternative insulation gas to SF6: From the perspective of PD initiated by metallic particles under DC

Hangzhou Guozhou Power Technology Co., Ltd.

Department of Electrical and Electronics Engineering

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Green gas for grid as an eco-friendly alternative insulation gas to SF: From the perspective of PD initiated by metallic particles under DC

This paper dealt with characteristics of partial discharge (PD) initiated by metallic particles under DC voltage in green gas for grid (g3), which is an...

Green gas for grid as an eco-friendly alternative insulation gas to SF₆: From the perspective of PD initiated by metallic particles under DC

Published Online: Mar 20, 2020

Page range: 43 - 48

Received: Jun 17, 2019

DOI: https://doi.org/10.2478/jee-2020-0006

Keywords
gas-insulated power facilities, green gas for grid (g3), alternative, partial discharge, metallic particle

© 2020 Guoming Wang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Green gas for grid as an eco-friendly alternative insulation gas to SF6: From the perspective of PD initiated by metallic particles under DC

Published Online: Mar 20, 2020

Page range: 43 - 48

Received: Jun 17, 2019

DOI: https://doi.org/10.2478/jee-2020-0006

Keywordsgas-insulated power facilities, green gas for grid (g3), alternative, partial discharge, metallic particle

© 2020 Guoming Wang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Green gas for grid as an eco-friendly alternative insulation gas to SF₆: From the perspective of PD initiated by metallic particles under DC

Keywords
gas-insulated power facilities, green gas for grid (g3), alternative, partial discharge, metallic particle