NDLI: Partial discharge detection in gas insulation load breaker switch

Content Provider	IEEE Xplore Digital Library
Author	Chien-Yi Chen Yu-Hsun Lin Ching-Chau Su Ju-Chu Hsieh Cheng-Chi Tai
Copyright Year	2011
Description	Author affiliation: Department of Electrical Engineering, Nan Jeon Institute of Technolog, 178 Chaoqin Road, Yanshui Dist., Tainan City 73746, Chinese Taipei (Yu-Hsun Lin; Ching-Chau Su) \|\| Department of Electrical Engineering, National Cheng Kung University, 1 University Road, Tainan City 70101, Chinese Taipei (Chien-Yi Chen; Ju-Chu Hsieh; Cheng-Chi Tai)
Abstract	This paper aims to discuss the measurement and recognition of partial discharge (PD) signals in gas insulation load breaker switch (GILBS) by using high frequency current transformer (HFCT) and acoustic emission (AE) sensors. Three kinds of fault were made purposely within the GILBS that sealed up with SF 6 gas. Then we increase the voltage onto the GILBS until it produce PDs and measure the signals with HFCT and AE sensors. If PD occurs inside the solid insulators, the phase of the electrical signals detected by HFCT, compared with the 60-Hz power line, will locate in 0°∼90° and 180°∼270°. If there were aluminum screenings and knobs inside the GILBS or tips on the high voltage side, the signals detected will occur between 90° and 270° due to the discharge in SF6 gas. Because the discharge occurs at the end of the high voltage side, the electrical signals of the negative half cycles measured by HFCT are larger than those of the positive half cycles. According to the arrival time difference between HFCT sensors measuring and AE sensors measuring, the discharge place can be identified. By comparing with the electricity magnitude measured from the electrical signals, the discharges generate 30 pC (picocoulomb) or so. This detection method can also be applied to the online measurement of gas insulation switchgear (GIS).
Starting Page	529
Ending Page	532
File Size	530184
Page Count	4
File Format	PDF
ISBN	9781457714672
e-ISBN	9781457714665
DOI	10.1109/APL.2011.6110182
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-11-01
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges High frequency current transformer (HFCT) Voltage measurement Ultrasonic variables measurement Partial discharge (PD) Sulfur hexafluoride Discharges Gas insulation switchgear (GIS) Gas insulation load breaker switch (GILBS) Sensors Acoustic emission (AE)
Content Type	Text
Resource Type	Article

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