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Impedance calculation of cables using subdivisions of the cable conductors

University of British Columbia

The impedances of cables are some of the parameters needed for various studies in cable systems. In this work, the impedances of cables are calculated using the subdivisions of the conductors (including ground) in the system. Use is also made of analytically derived ground return formulae to speed up the calculations. The impedances of most linear materials are calculated with a good degree of accuracy but materials with highly nonlinear properties, like steel pipes, give large deviations in the results when they are represented by the linear model used. The method is used to study a test case of induced sheath currents in bonded sheaths and it gives very good results when compared with the measured values.

Text

2010-03-11

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http://hdl.handle.net/2429/21770

Electrical and Computer Engineering

University of British Columbia

Graduate