Influence of distributed compensation on earth fault protection in cable distribution systems
(2008) The 9th International Conference on Developments in Power System Protection (DPSP 2008) p.615-620- Abstract
- The growing use of underground cables in distribution systems increases the capacitive coupling of the network to earth and as a consequence the capacitive earth fault current. In rural systems consisting of long cable feeders the extensive reactive current transportation gives rise to resistive losses that influence the earth fault protection. Simulations carried out in this work suggest the resistive losses disable sensitive earth fault protection in centrally compensated resonant earthed neutral systems unless unconventional low earth fault protection thresholds are applied. The introduction of distributed compensation will decrease the reactive current transportation and associated resistive losses. Distributed compensation will enable... (More)
- The growing use of underground cables in distribution systems increases the capacitive coupling of the network to earth and as a consequence the capacitive earth fault current. In rural systems consisting of long cable feeders the extensive reactive current transportation gives rise to resistive losses that influence the earth fault protection. Simulations carried out in this work suggest the resistive losses disable sensitive earth fault protection in centrally compensated resonant earthed neutral systems unless unconventional low earth fault protection thresholds are applied. The introduction of distributed compensation will decrease the reactive current transportation and associated resistive losses. Distributed compensation will enable the use of sensitive earth fault protection using conventional protection thresholds. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4357735
- author
- Guldbrand, Anna LU and Samuelsson, Olof LU
- organization
- publishing date
- 2008
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- fault currents, underground cables, earthing, Power transmission lines and cables, Power system protection
- host publication
- Developments in Power System Protection, 2008. DPSP 2008. IET 9th International Conference on
- pages
- 615 - 620
- conference name
- The 9th International Conference on Developments in Power System Protection (DPSP 2008)
- conference location
- Glasgow, United Kingdom
- conference dates
- 2008-03-17
- external identifiers
-
- scopus:67449088917
- ISBN
- 978-0-86341-902-7
- language
- English
- LU publication?
- yes
- id
- 6486e752-374c-4699-bfd5-df9e8e7041d3 (old id 4357735)
- alternative location
- http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4497057
- date added to LUP
- 2016-04-04 14:01:13
- date last changed
- 2022-01-30 01:18:06
@inproceedings{6486e752-374c-4699-bfd5-df9e8e7041d3, abstract = {{The growing use of underground cables in distribution systems increases the capacitive coupling of the network to earth and as a consequence the capacitive earth fault current. In rural systems consisting of long cable feeders the extensive reactive current transportation gives rise to resistive losses that influence the earth fault protection. Simulations carried out in this work suggest the resistive losses disable sensitive earth fault protection in centrally compensated resonant earthed neutral systems unless unconventional low earth fault protection thresholds are applied. The introduction of distributed compensation will decrease the reactive current transportation and associated resistive losses. Distributed compensation will enable the use of sensitive earth fault protection using conventional protection thresholds.}}, author = {{Guldbrand, Anna and Samuelsson, Olof}}, booktitle = {{Developments in Power System Protection, 2008. DPSP 2008. IET 9th International Conference on}}, isbn = {{978-0-86341-902-7}}, keywords = {{fault currents; underground cables; earthing; Power transmission lines and cables; Power system protection}}, language = {{eng}}, pages = {{615--620}}, title = {{Influence of distributed compensation on earth fault protection in cable distribution systems}}, url = {{http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4497057}}, year = {{2008}}, }