A 3-phase, 50 Hz, 60 km long overhead line supplies 1400 kW at 11 kV, 0.7 p.f. lagging. The line resistance is 0.025 0 per phase per km and line inductance is 0.8 mH per phase per km. Calculate the sending end voltage, voltage regulation and efficiency of transmission. Sending End Voltage Voltage Regulation Transmission efficiency

A 3-phase, 50 Hz, 60 km long overhead line supplies 1400 kW at 11 kV, 0.7 p.f. lagging. The line resistance is 0.025 0 per phase per km and line inductance is 0.8 mH per phase per km. Calculate the sending end voltage, voltage regulation and efficiency of transmission. Sending End Voltage Voltage Regulation Transmission efficiency

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 5.11P: A 40-km, 220-kV, 60-Hz, three-phase overhead transmission line has a per-phase resistance of...

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Consider a long radial line terminated in its characteristic impedance Zc. Determine the following: (a) V1/I1, known as the driving point impedance. (b) | V2 |/V1|, known as the voltage gain, in terms of al. (c) | I2 |/| I1 |, known as the current gain, in terms of al. (d) The complex power gain, S21/S12, in terms of al. (e) The real power efficiency, (P21/P12)=, terms of al. Note: 1 refers to sending end and 2 refers to receiving end. (S21) is the complex power received at 2; S12 is sent from 1.
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