Effects of Impulse Voltage Polarity, Peak Amplitude, and Rise Time on Streamers Initiated From a Needle Electrode in Transformer Oil
Name
TPS_Streamer_final Rev.pdf
Description
The resolution of images in this version is much higher than the one published in IEEEXplore.
Size
6.92 MB
Format
Adobe PDF
Checksum (MD5)
11a384d34a8add4b35ccb1ad3fdd3bb1
Author(s)
Jadidian, Jouya
Zahn, Markus
Lavesson, Nils
Widlund, Ola
Borg, Karl
Date Issued
March 2012
Journal
IEEE Transactions on Plasma Science
Publisher
Institute of Electrical and Electronics Engineers
Citation
Jadidian, Jouya, Markus Zahn, Nils Lavesson, Ola Widlund, and Karl Borg. Effects of Impulse Voltage Polarity, Peak Amplitude, and Rise Time on Streamers Initiated From a Needle Electrode in Transformer Oil. IEEE Transactions on Plasma Science 40, no. 3 (March 2012): 909-918.
Version
Author's final manuscript
Abstract
An electrothermal hydrodynamic model is presented to evaluate effects of the applied lightning impulse voltage parameters such as polarity, magnitude, and rise time on the initiation and propagation of the streamers formed in an IEC defined needle-sphere electrode geometry filled with transformer oil. Instantaneous velocity, column diameter, head curvature, maximum electric field, and the volume charge density have been investigated as the main characteristics of the streamer. Modeling results indicate that greater applied voltage peak amplitudes form streamers with higher velocity, greater head curvatures, and thicker columns. The bushy negative streamers usually initiate at almost twice the applied voltage magnitude and propagate slower than filamentary positive streamers. Results also show that in transformer oil at the same impulse voltage peak amplitude, shorter rise times create thicker positive and negative streamers.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike 3.0
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DOI of Published Version
https://doi.org/10.1109/TPS.2011.2181961
