A three-phase impedance load consists of a balanced A-load in parallel with a balanced Y-load. The impedance of each leg of the A load is ZA = 6 + j6 Q, and the impedance of each leg of the Y load is Zy = 2 + j2 n. The Y load is grounded through a neutral impedance Zn = jl2. Unbalanced line-to-ground source voltages Vag, Vbg, and Veg with sequence components Vo = 10 L 60°, Vị= 100L0°, and V2 = 15L 200° volts are applied to the load. a) Draw the zero-, positive-, and negative sequence networks. b) Determine the complex power delivered to each sequence network. c) Determine the total complex power delivered to the three-phase load.

A three-phase impedance load consists of a balanced A-load in parallel with a balanced Y-load. The impedance of each leg of the A load is ZA = 6 + j6 Q, and the impedance of each leg of the Y load is Zy = 2 + j2 n. The Y load is grounded through a neutral impedance Zn = jl2. Unbalanced line-to-ground source voltages Vag, Vbg, and Veg with sequence components Vo = 10 L 60°, Vị= 100L0°, and V2 = 15L 200° volts are applied to the load. a) Draw the zero-, positive-, and negative sequence networks. b) Determine the complex power delivered to each sequence network. c) Determine the total complex power delivered to the three-phase load.

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.42P: A balanced -connected impedance load with (12+j9) per phase is supplied by a balanced three-phase...

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