The University of Southampton
University of Southampton Institutional Repository

An investigation of electrical insulation for superconducting A.C. cables

An investigation of electrical insulation for superconducting A.C. cables
An investigation of electrical insulation for superconducting A.C. cables

The thesis describes the investigations into partial discharge activity and life of the electrical insulation suitable for a superconducting a.c. cable. The tests have been carried out by using cable models and the flat disc samples at a temperature range of 20 to 4.2 K, a pressure range of 3 to 15 bar and a helium density range of 25 to 160 kg/m3. Non-polar polymers, e.g. high density Polyethylene, Valeron, Polypropylene, Nylon 11 and Polysulfone (20 to 125 Um) were used for the inception discharge tests (1 PC) and (5 pC). The life tests were performed at a constant helium density of 119.3 kg/m3 (8 K, 15 bar) and the tape deterioration examined with scanning electron microscope. It concluded that the best material is Valeron which it is recommended should have a working conductor stress (a.c.) of 8.5 MV/m (rms) at a helium density of 119.3 kg/m3 (8 K, 15 bar).

University of Southampton
Shaikh, Sadaruddin
Shaikh, Sadaruddin

Shaikh, Sadaruddin (1981) An investigation of electrical insulation for superconducting A.C. cables. University of Southampton, Doctoral Thesis.

Record type: Thesis (Doctoral)

Abstract

The thesis describes the investigations into partial discharge activity and life of the electrical insulation suitable for a superconducting a.c. cable. The tests have been carried out by using cable models and the flat disc samples at a temperature range of 20 to 4.2 K, a pressure range of 3 to 15 bar and a helium density range of 25 to 160 kg/m3. Non-polar polymers, e.g. high density Polyethylene, Valeron, Polypropylene, Nylon 11 and Polysulfone (20 to 125 Um) were used for the inception discharge tests (1 PC) and (5 pC). The life tests were performed at a constant helium density of 119.3 kg/m3 (8 K, 15 bar) and the tape deterioration examined with scanning electron microscope. It concluded that the best material is Valeron which it is recommended should have a working conductor stress (a.c.) of 8.5 MV/m (rms) at a helium density of 119.3 kg/m3 (8 K, 15 bar).

This record has no associated files available for download.

More information

Published date: 1981

Identifiers

Local EPrints ID: 460550
URI: http://eprints.soton.ac.uk/id/eprint/460550
PURE UUID: da8054db-7098-4d04-bb49-dcb4cb8acee3

Catalogue record

Date deposited: 04 Jul 2022 18:24
Last modified: 04 Jul 2022 18:24

Export record

Contributors

Author: Sadaruddin Shaikh

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.

×