Induced sheath voltages in 110 kV power cables – case study

• Autorzy: Czapp S. , Dobrzyński K. , Klucznik J. , Lubośny Z.

Identyfikatory

DOI

10.2478/aee-2015-0028

• Języki publikacji: EN

Abstrakty

EN

This paper considers electric shock hazard due to induced sheath voltages in 110 kV power cables. The purpose of this paper is to find an optimal configuration of the power cable system, taking into account electric shock hazard and ability of the system to transfer maximal power. A computer simulations on a computer model of the local power system, comprising high voltage power cables, were carried out. This model enables to analyse various configurations of the metallic cable sheaths bonding and earthing (singlepoint bonding, both-ends bonding, cross-bonding) and their impact on induced voltages in the cable sheaths. The analysis presented in the paper shows, that it is possible to find an optimal configuration of the complicated power cable system, in terms of electric shock hazard, maximal power transfer as well as economic aspects.

Słowa kluczowe

EN

electric shock hazard; induced voltages; power cables; power system

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2015
• Tom: Vol. 64, nr 3
• Strony: 361--370
• Opis fizyczny: Bibliogr. 10 poz., rys., wz.

Twórcy

autor

Czapp S.

• Gdansk University of Technology Faculty of Electrical and Control Engineering ul. Narutowicza 11/12,80-233 Gdańsk, Poland

autor

Dobrzyński K.

• Gdansk University of Technology Faculty of Electrical and Control Engineering ul. Narutowicza 11/12,80-233 Gdańsk, Poland

autor

Klucznik J.

• Gdansk University of Technology Faculty of Electrical and Control Engineering ul. Narutowicza 11/12,80-233 Gdańsk, Poland

autor

Lubośny Z.

• Gdansk University of Technology Faculty of Electrical and Control Engineering ul. Narutowicza 11/12,80-233 Gdańsk, Poland

Bibliografia

• [1] CIGRE Working group B1.18, Special bonding of high voltage power cables (2005).
• [2] IEEE Guide for Bonding Shields and Sheaths of Single-Conductor Power Cables Rated 5 kV through 500 kV, IEEE Std 575™-2014.
• [3] Czapp S., Principles of protection against electric shock in high voltage power lines. Automatyka Elektryka Zaklocenia 13(3): 8-22 (2013), http://epismo-aez.pl/, (in Polish).
• [4] Jung C.K., Lee J.B., Kang J.W. et al., Characteristics and reduction of sheath circulating currents in underground power cable systems. Intern. Journal of Emerging Electric Power Systems 1(1): 1-17 (2004).
• [5] de Leon F., Major factors affecting cable ampacity. IEEE Power Engineering Society General Meeting (PES), (2006).
• [6] Zhonglei Li, Du B.X., Wang L., Yang, C., Liu, H.J., The calculation of circulating current for the single-core cables in smart grid. Innovative Smart Grid Technologies, ISGT, Asia, 21-24 May (2012).
• [7] Gouda O., Faraq A.A., Factors affecting the sheath losses in single-core underground power cables with two-points bonding method. International Journal of Electrical and Computer Engineering (IJECE) 2(1): 7-16 (2012).
• [8] Jung C.K., Lee J.B., Kang J.W., Xinheng Wang, Sheath circulating current analysis of a crossbonded power cable systems. Journal of Electrical Engineering & Technology 2(3): 320-328 (2007).
• [9] Riba Riuz J.R., Garcia A., Morera X.A., Circulating sheath currents in flat formation underground power lines, available at http://www.icrepq.com/icrepq07/217-riba.pdf. (accessed 16 June 2014).
• [10] EN 50522:2010 Earthing of power installations exceeding 1 kV a.c.