Effects of impulse polarity on grounding systems


Abdul Ali, Abdul Wali and Ahmad, Nurul Nadia and Mohamad Nor, Normiza (2020) Effects of impulse polarity on grounding systems. In: 7th IEEE International Conference on High Voltage Engineering and Application (ICHVE), 07.09.2020, China (Online), Beijing, China.

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In earlier paper, experimental results of 1-rod, 2-rod and 3-rod electrodes under high magnitude impulse currents of positive polarity were presented. In the paper, it was noticed that lower reduction of impulse resistance from its steady-state ground resistance value, R DC in large size of grounding electrodes (3-rod electrodes). The paper also showed a significant increase of current rise time in 3-rod electrodes, for current magnitudes of below 1.5 kA, indicating an inductive effect in large grounding electrodes. The results on the performance of grounding systems for increasing number of rods were only presented for positive impulse polarity.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Grounding systems, impulse polarity, impulse resistance, inductive effect, current rise time, current decay time
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 06 Oct 2021 02:29
Last Modified: 06 Oct 2021 02:29
URII: http://shdl.mmu.edu.my/id/eprint/8481


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