NDLI: Study on relationship between optical signals and charge quantity of partial discharge under four typical insulation defects

Content Provider	IEEE Xplore Digital Library
Author	Zhuo Ran Tang Ju Fan Lei Liu Yonggang Zhang Xiaoxing
Copyright Year	2013
Description	Author affiliation: State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing, China (Zhuo Ran; Tang Ju; Fan Lei; Liu Yonggang; Zhang Xiaoxing)
Abstract	In order to solve the problem of the optical method for detecting partial discharge (PD) in the electric equipment in quantity, the integral value of the signals from the optical method has been analyzed to reflect naturally the energy of light released by PD from the principle of the optical method, then a linear relationship between the integral value and the charge quantity of PD has been deduced to give a guidance to detect charge quantity of PD in Gas Insulated Switchgear (GIS). Afterwards, as the result of PD experiments on four typical insulation defects in GIS based on optical method coupled with impulse current method, the relationship between the average integral value of signal of the optical and the average apparent charge quantity presented linear. However, the relation curve of different defects might be distinct as the PD properties under different defects were distinct. Besides, the distance between two electrodes would also influent the linear relation. The longer the two electrodes separate, the greater the slope of the relation curve would be. Therefore, PD charge quantity might be calculated through optical signal when the defect type could be assured. Results all above shows that the type and level of PD could be determined using the optical method, hence the PD online monitoring and fault diagnosis based on the optical method is feasible.
Sponsorship	IEEE Dielectr. Electr. Insul. Soc.
Starting Page	1209
Ending Page	1212
File Size	309534
Page Count	4
File Format	PDF
ISBN	9781479925971
DOI	10.1109/CEIDP.2013.6748175
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Optical pulses Optical fiber sensors Optical fibers Insulation
Content Type	Text
Resource Type	Article

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