Sheath currents, sheath losses, induced sheath voltages and apparent conductor impedances of metal sheathed cables carrying alternating currents

When lead sheathed single conductor cables are used on alternating current circuits new problems are introduced such as induced sheath voltages and sheath losses. In this thesis it is proposed to consider sheath voltages, currents and losses and line constants for one or two circuits of single conductor cables with non-magnetic metallic sheaths. Residual earth currents, abnormal sheath voltages during failures, sheath proximity losses, and the results of special sheath bonding and of sheath and conductor transpositions will also be considered. Induced sheath voltages, sheath circulating currents, and the resulting values of sheath losses and apparent conductor impedance are the most important quantities from a practical operating standpoint. It will be shown that many practical cable arrangements are special cases of one more general case with a single surprisingly simple solution for these quantities.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Miller, Kenneth William

Contributors dc:contributor

• Paine, Ellery Burton
• Schulz, William Frederick
• Goodenough, George Alfred

• Sheath currents
• sheath losses
• alternating currents
• single conductor
• cable
• Electric cable sheathing
• Impedance (Electricity)

Statement dc:rights

• copyright 1929 Kenneth William Miller

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/25506

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/25506