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Calculation of grounding effects of bare conductors laid alongside underground multi-cable power lines by using analytical equations

Ivan Medić   ORCID icon orcid.org/0000-0002-2243-0170 ; University of Split; Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; Ruđera Boškovića b.b., 21000 Split, Croatia
Davor Bajs ; Energy Institute "Hrvoje Požar", Savska cesta 163, 10000 Zagreb, Croatia
Elis Sutlović ; University of Split; Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; Ruđera Boškovića b.b., 21000 Split, Croatia

Puni tekst: engleski, pdf (308 KB) str. 299-305 preuzimanja: 999* citiraj
APA 6th Edition
Medić, I., Bajs, D. i Sutlović, E. (2010). Calculation of grounding effects of bare conductors laid alongside underground multi-cable power lines by using analytical equations. Tehnički vjesnik, 17 (3), 299-305. Preuzeto s https://hrcak.srce.hr/59642
MLA 8th Edition
Medić, Ivan, et al. "Calculation of grounding effects of bare conductors laid alongside underground multi-cable power lines by using analytical equations." Tehnički vjesnik, vol. 17, br. 3, 2010, str. 299-305. https://hrcak.srce.hr/59642. Citirano 28.02.2021.
Chicago 17th Edition
Medić, Ivan, Davor Bajs i Elis Sutlović. "Calculation of grounding effects of bare conductors laid alongside underground multi-cable power lines by using analytical equations." Tehnički vjesnik 17, br. 3 (2010): 299-305. https://hrcak.srce.hr/59642
Harvard
Medić, I., Bajs, D., i Sutlović, E. (2010). 'Calculation of grounding effects of bare conductors laid alongside underground multi-cable power lines by using analytical equations', Tehnički vjesnik, 17(3), str. 299-305. Preuzeto s: https://hrcak.srce.hr/59642 (Datum pristupa: 28.02.2021.)
Vancouver
Medić I, Bajs D, Sutlović E. Calculation of grounding effects of bare conductors laid alongside underground multi-cable power lines by using analytical equations. Tehnički vjesnik [Internet]. 2010 [pristupljeno 28.02.2021.];17(3):299-305. Dostupno na: https://hrcak.srce.hr/59642
IEEE
I. Medić, D. Bajs i E. Sutlović, "Calculation of grounding effects of bare conductors laid alongside underground multi-cable power lines by using analytical equations", Tehnički vjesnik, vol.17, br. 3, str. 299-305, 2010. [Online]. Dostupno na: https://hrcak.srce.hr/59642. [Citirano: 28.02.2021.]

Sažetak
This paper presents a mathematical model to determine the fault current and voltage distribution in power cable screening conductors and bare earthing wires laid in parallel in the same cable trench. The analytical expressions for voltages and currents are derived by solving a set of differential equations. They are based on the assumption of uniformly distributed self and mutual conductances to ground of earthing wires. The earthing system under consideration includes also impedances of two adjacent substation groundings on which the earthing wires and cable screens terminate.The proposed mathematical model also takes into account mutual inductive couplings between all conductors in the trench (phases, cable screens and bare earthing wires). Particularly, in the case of a single-circuit cable line with an earthing conductor in trench, a set of generalized equations for currents and voltages along the related neutral conductors are derived in detail. An illustrative and practical example is presented too.

Ključne riječi
earthing; earthing wire; fault-current distribution; power cables; substation grounding potential

Hrčak ID: 59642

URI
https://hrcak.srce.hr/59642

[hrvatski]

Posjeta: 1.394 *