Publication

Lightning electromagnetic effects on lines and cables

Michel Ianoz
1997
Conference Papers

Abstract

The widespread use of sensitive electronic devices has increased the interest on transients, in particular those caused by lightning (direct and/or indirect). This tutorial presents the latest developments in modelling the electromagnetic (indirect) effects of lightning. The progress in field-to-transmission lines coupling calculations for networks permits the analysis of more complicated structures submitted to a lightning electromagnetic field. Combined approaches using low frequency coupling expressions which neglect the propagation in the case of complicated circuits but with small dimensions are discussed. Such approaches can give approximative solutions and orders of magnitude helpful for a correct EMC design for very complex configurations like for instance control and protection circuits in power network substations

Official source

https://infoscience.epfl.ch/entities/publication/a49cb39c-314b-4ad1-beac-105a5c426d10

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Michel Ianoz
1997
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/a49cb39c-314b-4ad1-beac-105a5c426d10

About this result

Related concepts (32)

Electromagnetic compatibility

Electromagnetic compatibility (EMC) is the ability of electrical equipment and systems to function acceptably in their electromagnetic environment, by limiting the unintentional generation, propagation and reception of electromagnetic energy which may cause unwanted effects such as electromagnetic interference (EMI) or even physical damage to operational equipment. The goal of EMC is the correct operation of different equipment in a common electromagnetic environment. It is also the name given to the associated branch of electrical engineering.

Electromagnetic pulse

An electromagnetic pulse (EMP), also referred to as a transient electromagnetic disturbance (TED), is a brief burst of electromagnetic energy. The origin of an EMP can be natural or artificial, and can occur as an electromagnetic field, as an electric field, as a magnetic field, or as a conducted electric current. The electromagnetic interference caused by an EMP can disrupt communications and damage electronic equipment. An EMP such as a lightning strike can physically damage objects such as buildings and aircraft.

Lightning strike

A lightning strike is a lightning event in which the electric discharge takes place between the atmosphere and the ground. Most originate in a cumulonimbus cloud and terminate on the ground, called cloud-to-ground (CG) lightning. A less common type of strike, ground-to-cloud (GC) lightning, is upward-propagating lightning initiated from a tall grounded object and reaching into the clouds. About 25% of all lightning events worldwide are strikes between the atmosphere and earth-bound objects.

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Lightning electromagnetic effects on lines and cables

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