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International Letters of Chemistry, Physics and Astronomy
Volume 36

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Nonlinear Load and RLC Pulse Shaping Surge Generator Models in Simulation Environment
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Nonlinear Load and RLC Pulse Shaping Surge Generator Models in Simulation Environment

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Abstract:

The present study was performed in order to understand how a nonlinear load affects the characteristics of the RLC pulse shaping surge generator waveforms under simulation studies. The obtained results were compared when analytical equations were used as source models for both 1.2/50 µs voltage & 8/20 µs current impulses. Three circuit models; Capacitor Bank generator, Combination waveform generator and Schaffner generator were evaluated under nonlinear loads varied from 10Ω to 106 Ω for voltage impulses and for current impulses it was from 10-4 Ω to 1 Ω. As it can perceive from the analysis, delay time, rise time and FWHM remain unchanged throughout the tested impedance range when used model equations as generator sources. It was found that for voltage impulses, these values were 4.95 μs, 1.20 μs and 81.8 μs respectively. For current impulses, these values were 16.2 μs, 8.02 μs and 20.7 μs respectively. However results obtained for generator circuit models shows that delay time, rise time and FWHM deviated from above values up to maximum of 35.15 %, 106.67 % & 115.16 % respectively for voltage impulses. For current impulses these deviations were up to maximum of 79.63 %, 48.75 % & 39.61 % respectively. The deviations were due to influence caused by the nonlinear load to the generator circuit parameters and effective internal impedance.

Info:

Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 36)
Pages:
334-347
DOI:
https://doi.org/10.18052/www.scipress.com/ILCPA.36.334
Citation:
M. Edirisinghe "Nonlinear Load and RLC Pulse Shaping Surge Generator Models in Simulation Environment", International Letters of Chemistry, Physics and Astronomy, Vol. 36, pp. 334-347, 2014
Online since:
July 2014
Authors:
Mahesh Edirisinghe
Keywords:
Loading Effect, Nonlinear Load, Surge Generator, Surge Protection
Export:
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Distribution:
Open Access

Creative Commons License
This work is licensed under a
Creative Commons Attribution 4.0 International License

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