A 20km overhead 3-phase transmission line delivers 5000 kVA at 22 kV at 0.7 lagging. The resistance and inductive reactance of each conductor is 0.2 Q and 0.3 2 per kilometer respectively. Determine: i. line Current sending end voltage percentage regulation transmission efficiency ii. ii. iv

A 20km overhead 3-phase transmission line delivers 5000 kVA at 22 kV at 0.7 lagging. The resistance and inductive reactance of each conductor is 0.2 Q and 0.3 2 per kilometer respectively. Determine: i. line Current sending end voltage percentage regulation transmission efficiency ii. ii. iv

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter5: Transmission Lines: Steady-state Operation

Section: Chapter Questions

Problem 5.18P

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A 20km overhead 3-phase transmission line delivers 5000 kVA at 22 kV at 0.7
lagging. The resistance and inductive reactance of each conductor is 0.2 Q and
0.3 2 per kilometer respectively.
Determine:
i. line Current
sending end voltage
percentage regulation
transmission efficiency
ii.
ii.
iv.

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