2. Calculate the ideal power transfer capability in MW of an ac 1200 kV, 900 km line to be commissioned from Guwahati to Patna having per-phase line inductance of 1.2 mH/km and capacitance of 15.7 nF/km. 3. In Problem 2, if the surge impedance of the existing 400 kV lines in this area is 250, many three-phase circuits of these lines can how be replaced by a single three-phase circuit of 1200 kV line? 4. A single-phase ac voltage of 230 V is applied to a series circuit whose impedance is 10 Z60°. Find active and reactive power of the circuit. What will be power factor of circuit? 5. Repeat Problem 4 with ac voltage of 120 V. Compare results.

2. Calculate the ideal power transfer capability in MW of an ac 1200 kV, 900 km line to be commissioned from Guwahati to Patna having per-phase line inductance of 1.2 mH/km and capacitance of 15.7 nF/km. 3. In Problem 2, if the surge impedance of the existing 400 kV lines in this area is 250, many three-phase circuits of these lines can how be replaced by a single three-phase circuit of 1200 kV line? 4. A single-phase ac voltage of 230 V is applied to a series circuit whose impedance is 10 Z60°. Find active and reactive power of the circuit. What will be power factor of circuit? 5. Repeat Problem 4 with ac voltage of 120 V. Compare results.

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

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.33MCQ

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