The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

Rating independent cable circuits in forced-ventilated cable tunnels

Rating independent cable circuits in forced-ventilated cable tunnels
Rating independent cable circuits in forced-ventilated cable tunnels
Over the last decade, there has been a notable rise in the number of forced ventilated cable tunnel schemes in the U.K., with new construction at transmission and distribution levels. The ability to accurately calculate continuous and emergency circuit ratings for these installations is vital in ensuring that their full operational benefit can be realized. While the Electra 143 calculation method in present use is fast and easy to use, it relies on several simplifying assumptions which make it unsuitable for application to tunnels with multiple independent cable circuits. This paper details a series of modifications to the present method which allow the direct calculation of ratings for tunnels containing multiple independent cable circuits. Significant benefits can be obtained from using this approach to calculate emergency ratings in these circumstances, as demonstrated by the example calculations provided. Implementation of an axially varying ac resistance also improves the accuracy of loss calculations. A number of key tunnel design considerations are illustrated through the results of the example calculations.
0885-8977
2046-2053
Pilgrim, J.A.
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Swaffield, D.J.
a49c59cd-9f76-456a-a948-a479b9a1c154
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Larsen, S T
5c9181e9-bcc5-41fc-9311-48ae7600d8d3
Waite, F
e000d193-2d87-444d-887a-5ad61c23e04b
Payne, D.
9a783127-bf02-4dfd-9a73-501a091a80df
Pilgrim, J.A.
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Swaffield, D.J.
a49c59cd-9f76-456a-a948-a479b9a1c154
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Larsen, S T
5c9181e9-bcc5-41fc-9311-48ae7600d8d3
Waite, F
e000d193-2d87-444d-887a-5ad61c23e04b
Payne, D.
9a783127-bf02-4dfd-9a73-501a091a80df

Pilgrim, J.A., Swaffield, D.J., Lewin, P.L., Larsen, S T, Waite, F and Payne, D. (2010) Rating independent cable circuits in forced-ventilated cable tunnels. IEEE Transactions on Power Delivery, 25 (4), 2046-2053. (doi:10.1109/TPWRD.2010.2052073).

Record type: Article

Abstract

Over the last decade, there has been a notable rise in the number of forced ventilated cable tunnel schemes in the U.K., with new construction at transmission and distribution levels. The ability to accurately calculate continuous and emergency circuit ratings for these installations is vital in ensuring that their full operational benefit can be realized. While the Electra 143 calculation method in present use is fast and easy to use, it relies on several simplifying assumptions which make it unsuitable for application to tunnels with multiple independent cable circuits. This paper details a series of modifications to the present method which allow the direct calculation of ratings for tunnels containing multiple independent cable circuits. Significant benefits can be obtained from using this approach to calculate emergency ratings in these circumstances, as demonstrated by the example calculations provided. Implementation of an axially varying ac resistance also improves the accuracy of loss calculations. A number of key tunnel design considerations are illustrated through the results of the example calculations.

Text
05530343TransPD.pdf - Version of Record
Restricted to Registered users only
Download (590kB)
Request a copy

More information

Published date: 1 October 2010
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 271597
URI: http://eprints.soton.ac.uk/id/eprint/271597
ISSN: 0885-8977
PURE UUID: 90f13660-2434-4f73-94dd-0740ee65bd21
ORCID for J.A. Pilgrim: ORCID iD orcid.org/0000-0002-2444-2116

Catalogue record

Date deposited: 27 Sep 2010 16:04
Last modified: 21 Nov 2021 02:57

Export record

Altmetrics

Contributors

Author: J.A. Pilgrim ORCID iD
Author: D.J. Swaffield
Author: P.L. Lewin
Author: S T Larsen
Author: F Waite
Author: D. Payne

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×