2. A single phase 11 kV line with a length of 15 km is to transmit 500 kVA. The inductive reactance of theline is 0-5 2km and the resistance is 0-3 Q/km. Calculate the efficiency and regulation of the line for 0-8lagging power factor.3. A load of 1000 kW at 0-8 p.f. lagging is received at the end of a 3-phase line 20 km long. The resistanceand reactance of each conductor are 0-25 Q and 0-28 2 per km. If the receiving end line voltage ismaintained at 11 kV, calculate:[97-74%. 3-34%](i) sending end voltage (line-to-line)(iii) transmission efficiency(ii) percentage regulation[() 11-84 kV (ii) 761% (iii) 94-32%

2. A single phase 11 kV line with a length of 15 km is to transmit 500 kVA. The inductive réa line is 0-5 2km and the resistance is 0-3 /km. Calculate the efficiency and regulation of the line for 0 8 lagging power factor. [97-74%, 3-34%] The resistance

2. A single phase 11 kV line with a length of 15 km is to transmit 500 kVA. The inductive réa line is 0-5 2km and the resistance is 0-3 /km. Calculate the efficiency and regulation of the line for 0 8 lagging power factor. [97-74%, 3-34%] The resistance

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 5.7P

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Question

2. A single phase 11 kV line with a length of 15 km is to transmit 500 kVA. The inductive reactance of the
line is 0-5 2km and the resistance is 0-3 Q/km. Calculate the efficiency and regulation of the line for 0-8
lagging power factor.
3. A load of 1000 kW at 0-8 p.f. lagging is received at the end of a 3-phase line 20 km long. The resistance
and reactance of each conductor are 0-25 Q and 0-28 2 per km. If the receiving end line voltage is
maintained at 11 kV, calculate:
[97-74%. 3-34%]
(i) sending end voltage (line-to-line)
(iii) transmission efficiency
(ii) percentage regulation
[() 11-84 kV (ii) 761% (iii) 94-32%

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