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2019•2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF)Open access

Lightning Over-voltages in Nuclear Power Plants

Ismet Tuna Gürbüz, Matti Lehtonen, Anouar Belahcen

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Abstract

When lightning strikes to the transmission towers, the equipment and the network components are jeopardized by the over-voltages. If the over-voltage magnitudes are more than the basic insulation level (BIL) of the equipment, irreversible damages occur in the system. This paper analyzes lightning over-voltages in two different nuclear power plants (NPP) by applicable modeling and simulations. In order to keep the over-voltage magnitudes below BILs of the equipment, protection ways are proposed with the surge arresters and the surge capacitances.

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What this paper is about

When lightning strikes to the transmission towers, the equipment and the network components are jeopardized by the over-voltages. If the over-voltage magnitudes are more than the basic insulation level (BIL) of the equipment, irreversible damages occur in the system. This paper analyzes lightning over-voltages in two different nuclear power plants (NPP) by applicable modeling and simulations. In order to keep the over-voltage magnitudes below BILs of the equipment, protection ways are proposed with the surge arresters and the surge capacitances.

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Available abstract

When lightning strikes to the transmission towers, the equipment and the network components are jeopardized by the over-voltages. If the over-voltage magnitudes are more than the basic insulation level (BIL) of the equipment, irreversible damages occur in the system. This paper analyzes lightning over-voltages in two different nuclear power plants (NPP) by applicable modeling and simulations. In order to keep the over-voltage magnitudes below BILs of the equipment, protection ways are proposed with the surge arresters and the surge capacitances.

Key concepts: Lightning (connector), Lightning arrester, Surge arrester, Electrical engineering, Voltage, Surge, Lightning strike, Overvoltage

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