Modeling of different tower grounding systems using hybrid continuous circuit-trapezoidal integration method
In order to protect the transmission lines against lightning strikes, it is important to investigate the tower grounding system. In this paper, a recent method called hybrid continuous circuit-trapezoidal integration method is used to calculate the impulse impedance of the grounding system....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Faculty of Technical Sciences in Cacak
2021-01-01
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| Series: | Serbian Journal of Electrical Engineering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-4869/2021/1451-48692102225A.pdf |
| Summary: | In order to protect the transmission lines against lightning strikes, it is
important to investigate the tower grounding system. In this paper, a recent
method called hybrid continuous circuit-trapezoidal integration method is
used to calculate the impulse impedance of the grounding system. Moreover,
conventional structures of the grounding systems have been simulated and the
results show that, with the same wire length, the square with additional
wire system has the least impulse impedance as compared to counterpoise,
square and crow’s foot. Moreover, the effects of soil resistivity and
lightning current rise-time on the impulse impedance of these grounding
systems are investigated. It is concluded that the design of the grounding
system depends on the geographic location of the site in terms of soil
resistivity and isotropic characteristics of the area in terms of lightning
current rise-time. |
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| ISSN: | 1451-4869 2217-7183 |