Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Conferences, Workshops, Symposiums, and Seminars
  4. Lightning protection of distribution networks. Part II: Application to MV networks
 
conference paper

Lightning protection of distribution networks. Part II: Application to MV networks

Porrino, A.
•
Alexandri, I.
•
Clement, M.
Show more
1997
IEE Conference Publication

The basic information for designers of lightning protection of MV and LV networks is given in Part I of the present publication. This Part II gives an application of this basic information to the lightning protection of MV networks containing overhead lines. As the overvoltages due to lightning reach important values, an economical and safe network design calls for extensive lightning protection. This general statement applies to high voltage as well as medium and low voltage networks. Overvoltage protection can be basically achieved in two ways: - reducing the amplitude and rate of occurrence of lightning overvoltages at the point of origin (e.g. through shielding the line conductors or improving the footing resistance of towers); - limiting the overvoltage at the equipment location (e.g. through surge arresters). In high voltage networks, both methods of protection are common. In MV networks shielding the conductors is generally not very effective. Due to the small clearance between the earth wire and the conductors, a direct lightning stroke will usually hit the conductors as well. In addition, induced overvoltages can be reduced only to a low extent by shield wires, as reported in [1]. For these reasons, the most effective protection against overvoltages in such networks is the use of surge arresters or spark gaps in the vicinity of the equipment. The paper gives guidance in the selection of rating and position of such protective devices and gives some indication on the effect of their use on the quality of the supply.

  • Details
  • Metrics
Type
conference paper
Author(s)
Porrino, A.
Alexandri, I.
Clement, M.
Finlay, G. S.
Henriksen, T.
Hoeffelman, J.
Ishii, M.
Martinez Cid, P.
Nucci, C. A.
Popolansky, Frantisek
Show more
Date Issued

1997

Published in
IEE Conference Publication
Issue

438 pt 1/2

Start page

2

End page

28

Subjects

Overhead lines

•

Lightning protection

•

Overvoltage protection

•

Surge protection

•

Lightning arresters

•

Electric spark gaps

•

Lightning overvoltages

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LRE  
SCI-STI-FR  
Available on Infoscience
April 4, 2007
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/4439
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés