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Tan Delta and Capacitance Characteristics of Underground XLPE Cables – 11 kV

Ponniran, Asmarashid and Mohd Jamail, Norakmal and Jalaludin, Nor Anija Tan Delta and Capacitance Characteristics of Underground XLPE Cables – 11 kV. In: The 3rd Malaysian Technical Universities Conference on Engineering and Technology (MUCEET2009), 20-22 June 2009, Kuantan, Pahang.

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Abstract

There are several appropriate techniques can be used in order to show the characteristics of aged and unaged underground XLPE cables after sometime in service. From the characteristics, performance of the cables can be evaluated. One of the techniques is based on tan delta and capacitance measurements of the cable insulation. This study focuses on underground XLPE cables which rated at 11 kV for both 1-core and 3-core types. Tan delta and capacitance data of underground XLPE cables are obtained using a Schering bridge instrument. The measurements are performed at the temperature about 29oC and 50 Hz power frequency. The analysis of data shows that tan delta values are increased in proportion to the aging factors and voltage stressed. Meanwhile the capacitance values of the cable insulator are increased and decreased in proportion to the aging factors and voltage stressed. Therefore, tan delta and capacitance are the useful parameters for evaluating the quality of underground XLPE cables insulator.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: tan delta; capacitance; underground XLPE cables; schering bridge
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3001-3521 Distribution or transmission of electric power
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electrical Power Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 23 Nov 2012 10:31
Last Modified: 23 Nov 2012 10:31
URI: http://eprints.uthm.edu.my/id/eprint/2846
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