Staff Members - Benha University
Simplified Approach to Calculate the Back Flashover Voltage of Shielded H.V. Transmission Line Towers
• 2010
Publication Information
Authors
Ghada Amer
Keywords
Back flashover voltage, H.V.T.L., Shielded,
Towers
Journal
Not Available
Publisher
Proceedings of the 14th International Middle East Power Systems Conference (MEPCON’10),
Volume
Not Available
Issue
Not Available
Pages
Not Available
publication.type
International
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
over voltages due to switching or lightning may
cause damage for the transmission line insulators, transformers
and switchgear. The flow of overvoltage to earth through
transmission system towers causes an increase in the potential of
metal structure and the earth potential and may create back
flashover voltage causing failure to transmission system
insulators in which transmission line outages occur. In this paper
the effect of tower grounding surge impedance on the back
flashover is investigated. The coupling factors between the
shielding wires and the healthy conductors are considered.
cause damage for the transmission line insulators, transformers
and switchgear. The flow of overvoltage to earth through
transmission system towers causes an increase in the potential of
metal structure and the earth potential and may create back
flashover voltage causing failure to transmission system
insulators in which transmission line outages occur. In this paper
the effect of tower grounding surge impedance on the back
flashover is investigated. The coupling factors between the
shielding wires and the healthy conductors are considered.