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High frequency AC characteristics of 132kV power cable

Tangent Delta is an analytical method to determine cables insulation strength. It is a robust method to analyse aging of cables. Ideally the insulation (XLPE) acts as a perfect capacitor, the voltage and current are phase shifted 90°. Current through the insulation are purely capacitive (IC) with cu...

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Main Authors: Chakrabarty, C.K., Avinash, A.R., Ahmad Basri, A.G.
Format: Conference Paper
Language:en_US
Published: 2017
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spelling my.uniten.dspace-56752017-12-12T06:29:17Z High frequency AC characteristics of 132kV power cable Chakrabarty, C.K. Avinash, A.R. Ahmad Basri, A.G. Tangent Delta is an analytical method to determine cables insulation strength. It is a robust method to analyse aging of cables. Ideally the insulation (XLPE) acts as a perfect capacitor, the voltage and current are phase shifted 90°. Current through the insulation are purely capacitive (IC) with current leading voltage (V). Defects like contamination, scotching and void will add impurities in the insulation resulting in decrease of resistance of the insulation. This causes the increase in resistive current (IR) through the insulation making it no longer a perfect capacitor. A phase shift between the leading capacitive current (IC) and the voltage is utilized to determine the tangent delta (tan δ). Defects such as void in the insulation play a role in the electric field distribution in a cable. Simulation using Electromagnetic Computer Simulation Technology Studio (CST EM) displays a change in the electric field distribution and localization of the electric field. The changes in the Tan Delta, due to the presence of voids are then verified using HF Tangent Delta measurement method. Other cables with defects like scotching and contamination in the insulation (XLPE) will also be measured. The High Frequency AC setup utilizes a small testing environment due to the use of small length cables. This change will result in the reduction of total capacitance of the cable but this is overcome using High Frequency which is sufficient to create high electric stress on XLPE layer thus inducing measureable dielectric current. Tangent delta is obtained using the phase shift between leading current and applied voltage. © 2014 IEEE. 2017-12-08T06:45:16Z 2017-12-08T06:45:16Z 2015 Conference Paper 10.1109/ISTT.2014.7238249 en_US ISTT 2014 - 2014 IEEE 2nd International Symposium on Telecommunication Technologies 2 September 2015, Article number 7238249, Pages 429-435
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
language en_US
description Tangent Delta is an analytical method to determine cables insulation strength. It is a robust method to analyse aging of cables. Ideally the insulation (XLPE) acts as a perfect capacitor, the voltage and current are phase shifted 90°. Current through the insulation are purely capacitive (IC) with current leading voltage (V). Defects like contamination, scotching and void will add impurities in the insulation resulting in decrease of resistance of the insulation. This causes the increase in resistive current (IR) through the insulation making it no longer a perfect capacitor. A phase shift between the leading capacitive current (IC) and the voltage is utilized to determine the tangent delta (tan δ). Defects such as void in the insulation play a role in the electric field distribution in a cable. Simulation using Electromagnetic Computer Simulation Technology Studio (CST EM) displays a change in the electric field distribution and localization of the electric field. The changes in the Tan Delta, due to the presence of voids are then verified using HF Tangent Delta measurement method. Other cables with defects like scotching and contamination in the insulation (XLPE) will also be measured. The High Frequency AC setup utilizes a small testing environment due to the use of small length cables. This change will result in the reduction of total capacitance of the cable but this is overcome using High Frequency which is sufficient to create high electric stress on XLPE layer thus inducing measureable dielectric current. Tangent delta is obtained using the phase shift between leading current and applied voltage. © 2014 IEEE.
format Conference Paper
author Chakrabarty, C.K.
Avinash, A.R.
Ahmad Basri, A.G.
spellingShingle Chakrabarty, C.K.
Avinash, A.R.
Ahmad Basri, A.G.
High frequency AC characteristics of 132kV power cable
author_facet Chakrabarty, C.K.
Avinash, A.R.
Ahmad Basri, A.G.
author_sort Chakrabarty, C.K.
title High frequency AC characteristics of 132kV power cable
title_short High frequency AC characteristics of 132kV power cable
title_full High frequency AC characteristics of 132kV power cable
title_fullStr High frequency AC characteristics of 132kV power cable
title_full_unstemmed High frequency AC characteristics of 132kV power cable
title_sort high frequency ac characteristics of 132kv power cable
publishDate 2017
_version_ 1644493748774633472
score 13.222552

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