Measurement and analysis of partial discharges in SF 6 gas under HVDC
| Autor: | Guoming Wang, Gyung-Suk Kil, Sung-Wook Kim, Hyang-Eun Jo, Sun-Jae Kim |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Engineering business.industry Applied Mathematics System of measurement Nuclear engineering 020208 electrical & electronic engineering Electrical engineering 02 engineering and technology Condensed Matter Physics 01 natural sciences Switchgear Power (physics) Smart grid 0103 physical sciences Partial discharge 0202 electrical engineering electronic engineering information engineering High-voltage direct current Electrical and Electronic Engineering business Instrumentation Real-time operating system Voltage |
| Zdroj: | Measurement. 91:351-359 |
| ISSN: | 0263-2241 |
| DOI: | 10.1016/j.measurement.2016.05.033 |
| Popis: | With the rapid development of high voltage direct current (HVDC) technology and the requirements of smart grids, there is a new challenge of monitoring and diagnosing the insulation performance of related power facilities. This paper dealt with the measurements and analysis of partial discharges in SF 6 gas under HVDC in terms of discharge inception voltage (DIV), discharge magnitude and pulse count, as well as the statistical characteristics extracted from discharge distribution and density functions. Five types of electrode systems were fabricated to simulate typical insulation defects in gas-insulated switchgear. All these systems were filled with SF 6 gas in ranges from 0.1 to 0.5 MPa. The measurement system was developed based on the real time operating system by LabVIEW. The results revealed that identification of the defects in gas-insulated equipment operated under HVDC can be realized by analyzing the statistical characteristics extracted from the discharge distribution and density functions. |
| Databáze: | OpenAIRE |
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