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
fbdf5342-eb12-401b-aab8-2bafb33acb39
1981
Shaikh, Sadaruddin
fbdf5342-eb12-401b-aab8-2bafb33acb39
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).
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Published date: 1981
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Local EPrints ID: 460550
URI: http://eprints.soton.ac.uk/id/eprint/460550
PURE UUID: da8054db-7098-4d04-bb49-dcb4cb8acee3
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Date deposited: 04 Jul 2022 18:24
Last modified: 11 May 2023 17:06
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Author:
Sadaruddin Shaikh
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