By Topic

Earthing of 130 kV power lines-effects on dependability and line cost

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Karlsson, D. ; STRI AB, Ludvika, Sweden ; Norberg, P.

Power lines without overhead shield wires have low investment costs and their dependability in areas with low lightning incidence has been accepted. However, requirements for higher availability, improved power quality and lower maintenance costs may change the choice of line design as discussed in this paper. Results are presented from a comparison of three different 130 kV power line designs, with and without shield wires, with respect to lightning performance, ground-return currents, dependability and costs. The lightning performance is analysed by EMTDC-simulations and the probability for line-to-line and line-to-ground faults are calculated. The severity of resulting voltage dips, and the corresponding outage cost for sensitive customers are discussed. Fault current distributions for different grounding designs are calculated and required safety precautions and protective measures, on the power line or adjacent installations, are discussed. In conclusion: shielded lines have low outage costs, and show advantages in most technical aspects

Published in:

Transmission and Distribution Conference and Exposition, 2001 IEEE/PES  (Volume:2 )

Date of Conference: