This paper proposes a simple innovative formula for the calculation of the magnetic field generated by a single and a double circuit twisted three-phase power cable line. The formula results a good approximation of the rigorous analytical one and at the same time is much more accurate than the approximated formula found in literature, as demonstrated by some cases of a twisted three-phase power cable used for power distribution at the medium voltage level. The effectiveness of this simple innovative formula is also examined in the case of a double-circuit twisted three-phase power cable line following the ‘worst case’ approach and concluding at proposing an approximate expression for the total magnetic field generated by both twisted three-phase power cables.

Innovative calculation methods of the magnetic field from single and double-circuit twisted three-phase cables used for the connection of renewable sources to the grid

MAZZANTI, GIOVANNI;LANDINI, MARCO;KANDIA, EFFROSYNI
2011

Abstract

This paper proposes a simple innovative formula for the calculation of the magnetic field generated by a single and a double circuit twisted three-phase power cable line. The formula results a good approximation of the rigorous analytical one and at the same time is much more accurate than the approximated formula found in literature, as demonstrated by some cases of a twisted three-phase power cable used for power distribution at the medium voltage level. The effectiveness of this simple innovative formula is also examined in the case of a double-circuit twisted three-phase power cable line following the ‘worst case’ approach and concluding at proposing an approximate expression for the total magnetic field generated by both twisted three-phase power cables.
2011
G. Mazzanti; M. Landini; E. Kandia
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/115110
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