Staff Members - Benha University
INVESTIGATION OF OVERVOLTAGES IN A GAS INSULATED SUBSTATION (G.I.S.) CAUSED BY A LIGHTNING STROKE
• 1994
Publication Information
Authors
ABDEL-SALAM H. HAMZAt and NAGAT M. K. ABDEL-GAWAD Electrical Engineering Department, Faculty of Engineering, Shoubra Zagazig University, 108 Shoubra Street, Shoubra, Cairo, Egypt
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publication.type
International
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Abstract
Abstract--A back flashover for a shielding failure can be caused by a lightning stroke, which will
damage equipment and devices in a gas insulated substation if the devices' maximum voltages are
exceeded.
In this study, the branch timetable method, which is implemented from the lattice diagram method, is
used in a computer program for the calculation of overvoltages in the gas insulated substation, as a result
of a shielding failure, so that the gas insulated substation performance under lightning stroke can be
determined. The study of the lightning performance of a gas insulated substation is very important for
the purpose of designing lightning overvoltage protection systems.
Electrical power systems Gas insulated substation (G.I.S.)
Shielding failure
damage equipment and devices in a gas insulated substation if the devices' maximum voltages are
exceeded.
In this study, the branch timetable method, which is implemented from the lattice diagram method, is
used in a computer program for the calculation of overvoltages in the gas insulated substation, as a result
of a shielding failure, so that the gas insulated substation performance under lightning stroke can be
determined. The study of the lightning performance of a gas insulated substation is very important for
the purpose of designing lightning overvoltage protection systems.
Electrical power systems Gas insulated substation (G.I.S.)
Shielding failure