Closed-Form Expressions for the Estimation of the Minimum Backflashover Current of Overhead Transmission Lines

The minimum backflashover current, I BF , of typical overhead transmission lines is estimated through ATP-EMTP simulations considering the tower ground resistance and AC voltage phase angle as parameters. Several single- and double-circuit lines are investigated with operating voltage from 66 kV to...

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Veröffentlicht in:	IEEE transactions on power delivery 2021-04, Vol.36 (2), p.522-532
Hauptverfasser:	Datsios, Zacharias G., Mikropoulos, Pantelis N., Tsovilis, Thomas E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Backflashover Circuits Conductors Electric potential EMTP Flashover Grounding Insulation insulation coordination Insulators Lightning Mathematical analysis overhead transmission lines Phase shift Poles and towers Resistance Surges Transmission lines Voltage
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