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Thermomechanical Pressure Analysis for HVDC Cables

Thermomechanical Pressure Analysis for HVDC Cables
Thermomechanical Pressure Analysis for HVDC Cables
For some mass-impregnated (MI) paper insulated HVDC cables, unacceptably high pressures or pressure drops occur at the insulation-sheath interface under rapid loading changes, due to a strong impregnant thermal expansion or contraction. As this can degrade cables by either causing sheath plastic deformations or introducing voids into the insulation, it is important to investigate/model this thermo-mechanical phenomenon. Based on the theory of elasticity, this paper presents an analytical calculation of interfacial pressures as a function of the cable loading. Results obtained will benefit both cable operators and manufactures by provide guidelines of rating calculations and insulation designs, following a thermo-mechanical constraint.
Huang, Z Y
d9ec7ad6-0803-411d-81c5-3969f419fd44
Pilgrim, J A
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Huang, Z Y
d9ec7ad6-0803-411d-81c5-3969f419fd44
Pilgrim, J A
4b4f7933-1cd8-474f-bf69-39cefc376ab7

Huang, Z Y and Pilgrim, J A (2013) Thermomechanical Pressure Analysis for HVDC Cables. Jicable HVDC 13, Perpignan, France.

Record type: Conference or Workshop Item (Poster)

Abstract

For some mass-impregnated (MI) paper insulated HVDC cables, unacceptably high pressures or pressure drops occur at the insulation-sheath interface under rapid loading changes, due to a strong impregnant thermal expansion or contraction. As this can degrade cables by either causing sheath plastic deformations or introducing voids into the insulation, it is important to investigate/model this thermo-mechanical phenomenon. Based on the theory of elasticity, this paper presents an analytical calculation of interfacial pressures as a function of the cable loading. Results obtained will benefit both cable operators and manufactures by provide guidelines of rating calculations and insulation designs, following a thermo-mechanical constraint.

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More information

Published date: 19 November 2013
Venue - Dates: Jicable HVDC 13, Perpignan, France, 2013-11-19
Organisations: EEE

Identifiers

Local EPrints ID: 361979
URI: http://eprints.soton.ac.uk/id/eprint/361979
PURE UUID: 08a273c1-9e7b-4837-8a85-eb6550aad202
ORCID for J A Pilgrim: ORCID iD orcid.org/0000-0002-2444-2116

Catalogue record

Date deposited: 06 Feb 2014 20:45
Last modified: 15 Mar 2024 03:25

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Contributors

Author: Z Y Huang
Author: J A Pilgrim ORCID iD

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