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Content Provider | IET Digital Library |
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Author | Luo, Yi Tang, Ju Pan, Cheng Pan, Zijun Li, Yi Cui, Zhaolun |
Abstract | In this study, a simulation model of surface charge accumulation has been established. The model considers three accumulation ways, i.e. electrical conduction within the gas, through insulator volume and along the insulator surface. The generation, diffusion, drift and recombination of charge carriers are also taken into account. Based on it, the influence of polarity reversal, reversal time on surface charge and electric field distribution on a basin-type insulator are studied. The polarity of the surface charges and the direction of the electric field change after the voltage polarity reversal. When the preload voltage is equal to reversal voltage, the surface charge and the electric field distributions at steady state before and after voltage polarity reversal are all the same with opposite sign, and not affected by the reversal time. However, the time to reach the steady state varies with different reversal time. The steady-state surface charge and electric field increased with the rise of reversal voltage. The transient normal and tangential electric field would not exceed the value of the steady state, which means voltage polarity reversal has no additional influence on insulation performance. This research can provide guidance to the design and manufacture of DC GIS/GIL. |
Starting Page | 151 |
Ending Page | 159 |
Page Count | 9 |
Volume Number | 5 |
e-ISSN | 23977264 |
Issue Number | Issue 2, Apr (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/hve/5/2 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/hve.2019.0217 |
Journal | High Voltage |
Publisher | The Institution of Engineering and Technology CEPRI |
Publisher Date | 2020-02-12 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Basin-type Insulator Charge Carriers Connector Different Reversal Time Electric Field Electric Field Change Electric Field Distribution Electrical Conduction Electrical Conductivity Gas Insulated Switchgear Gas Insulated Transmission Line Insulator Insulator Surface Power Line Supports Reversal Voltage Steady-state Analysis Steady-state Surface Charge Surface Charge Accumulation Surface Charging Switch Tangential Electric Field Voltage Polarity Reversal |
Content Type | Text |
Resource Type | Article |
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