Line impedanceMiM1Transformer,VsVTM3,M:М2Line impedanceneutralLine impedanceM3Figure 2: Distribution lines equivalent circuit.Figure 1: Low voltage lines exiting the distributiontransformer center.In the given circuit, low voltage lines are seen coming out of a distribution transformerwhose Low Voltage side is star connected. R (OR = 0) phase for M1 line, S (pS = 120)phase for M2 line andT (oT = -120) phase is used for M3 line. The impedances of theloads at the end of the lines are (100 + j25) N and the impedances of the lines (1 + j) N.• Calculate the voltage occurring between the ends of M1, M2 and M3 loads asthe voltages between Phase-Neutral at the distribution transformer output are230V and the voltages between Phase-Phase are read as 230/3V.

Explanation: The voltage at point M1 =…

VR Line impedance Mı M1 Transformer Vs VTt М M: M2 Line impedance neutral Line impedance M3 Figure 2: Distribution lines equivalent circuit. Figure 1: Low voltage lines exiting the distribution transformer center. In the given circuit, low voltage lines are seen coming out of a distribution transformer whose Low Voltage side is star connected. R (R = 0) phase for M1 line, S (@S = 120) phase for M2 line andT (øT = -120) phase is used for M3 line. The impedances of the loads at the end of the lines are (100 + j25) N and the impedances of the lines (1 + j) N. • Calculate the voltage occurring between the ends of M1, M2 and M3 loads as the voltages between Phase-Neutral at the distribution transformer output are 230V and the voltages between Phase-Phase are read as 230/3V.

VR Line impedance Mı M1 Transformer Vs VTt М M: M2 Line impedance neutral Line impedance M3 Figure 2: Distribution lines equivalent circuit. Figure 1: Low voltage lines exiting the distribution transformer center. In the given circuit, low voltage lines are seen coming out of a distribution transformer whose Low Voltage side is star connected. R (R = 0) phase for M1 line, S (@S = 120) phase for M2 line andT (øT = -120) phase is used for M3 line. The impedances of the loads at the end of the lines are (100 + j25) N and the impedances of the lines (1 + j) N. • Calculate the voltage occurring between the ends of M1, M2 and M3 loads as the voltages between Phase-Neutral at the distribution transformer output are 230V and the voltages between Phase-Phase are read as 230/3V.

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 3.49P: Consider the single-Line diagram of a power system shown in Figure 3.42 with equipment ratings...

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