Q3: A 3- phase transmission line having impedance of (2+j6) ohm the supply voltage is 350-volt 50 Hz. load connected consist of three impedance each (5+j 10) ohm. Determine the efficiency of the system when the load is (i) delta connected and (ii) star connected. Based on the results, state your opinion which connection give the best performance and explain you answer.

Q3: A 3- phase transmission line having impedance of (2+j6) ohm the supply voltage is 350-volt 50 Hz. load connected consist of three impedance each (5+j 10) ohm. Determine the efficiency of the system when the load is (i) delta connected and (ii) star connected. Based on the results, state your opinion which connection give the best performance and explain you answer.

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.25P: Consider a single-phase electric system shown in Figure 3.33. Transformers are rated as follows:...

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