A transmission-line cable consists of 12 identical strands of aluminum, each 3 mm in diameter. The resistivity of aluminum strand at 20°C is 2.8 × 10-8 Nm. Find the AC resistance per Km of the cable at 50°C. Assume a skin-effect correction factor of 1.02 at 60 Hz.

Power System Analysis and Design (MindTap Course List)
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ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
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Chapter4: Transmission Line Parameters
Section: Chapter Questions
Problem 4.3P: A transmission-line cable with a length of 2 km consists of 19 strands of identical copper...
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A transmission-line cable consists of 12 identical strands of aluminum, each 3 mm in diameter. The
resistivity of aluminum strand at 20°C is 2.8 × 10-8 Nm. Find the AC resistance per Km of the cable
at 50°C. Assume a skin-effect correction factor of 1.02 at 60 Hz.
Question 2:
Transcribed Image Text:A transmission-line cable consists of 12 identical strands of aluminum, each 3 mm in diameter. The resistivity of aluminum strand at 20°C is 2.8 × 10-8 Nm. Find the AC resistance per Km of the cable at 50°C. Assume a skin-effect correction factor of 1.02 at 60 Hz. Question 2:
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