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OVERHEAD TRANSMISSION LINE IMPEDANCE
2

OVERHEAD TRANSMISSION LINE IMPEDANCE

OVERHEAD TRANSMISSION LINE IMPEDANCE

(OP)
How would one compute the Zero Sequence Impedance of
an overhead three phase power line with and without
an overhead  static wire.

RE: OVERHEAD TRANSMISSION LINE IMPEDANCE

It depends entirely on the geometry of the line and transposition of phases. Suggest consulting a good book on power transmission line theory.

See
http://www.ee.sc.edu/classes/Fall03/elct551/Transmission%20line%20zero%20sequence%20impedance%20calculation.pdf
http://www.ee.sc.edu/classes/Fall03/elct551/zero-seq%20Z%20calc.pdf
http://www.selinc.com/techpprs/6066.pdf

Also see these previous related threads.
Thread238-49033
Thread238-56254
Thread238-54661

RE: OVERHEAD TRANSMISSION LINE IMPEDANCE

See Chapters 11 through 13 of J. Lewis Blackburn Symmetrical Components for Power System Engineering or Chapter 3 of the Electrical Transmission and Distribution Reference Book.  Many other references.  The answer is much too involved to be adequately developed in this type of forum.

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