Assessing induced sheath voltage in multi-circuit cables: revising the methodology

• Main Authors: Shaban, M., Salam, M. A., Ang, S. P., Sidik, M. A. B., Buntat, Z., Voon, W.
• Format: Conference or Workshop Item
• Published: Institute of Electrical and Electronics Engineers Inc. 2016
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/73422/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964388602&doi=10.1109%2fCENCON.2015.7409553&partnerID=40&md5=d761176d91b9a66f486b5eec3c050424

Flow of current in a cable conductor generates a magnetic field which could induce current flow in the metallic cable shield or sheath. This paper examines induced voltage calculation in multi-circuit of the cables with the hope of proposing new methodology for induced sheath voltage computation in metallic shield of a single-core power cable operating in a triple circuit. This study considers a few examples to demonstrate the method of examining the induced voltage in single, double and triple-circuits. The calculated values for induced voltages were 0.079 V/m, 0.074 V/m and 0.068 V/m for triple, double and single circuit. It is found that induced sheath voltage increased with the increase in number of the cables.