Do c) Q1 (a) A balanced star connected load of (8+j3) N is connected to a 3-phase, 415 Vand 50 Hz supply.Draw the circuit diagram, indicating VRN, VRY and all line currents.Calculate:The 3 line currents (IR, Iy and IB).The total real power (W) and power factor at the 3 phasesupply.(i)(ii)(b)An unbalanced delta connected load consisting of the phase impedances ZRY(10+j3) 2, ZYB (12+j0) N and ZBr (8+j3) N is connected to a 3-phase, 440V, 50 Hz supply. Draw the circuit diagram including the implementation ofa 2 wattmeter power measurement.Using the information above:Calculate the 3 load phase currents (IRY, IYB and IBR).Draw a scaled phasor diagram indicating all phase and linevoltages and the three load phase currents.(iii) Using the scaled phasor diagram or otherwise determine the 3(i)(ii)line currents (IR, Iy and IB).(c)Determine the total real supply power (W) for Q1(b) based on the 2wattmeter measurements.

Answered: Image /qna-images/answer/82d27df9-3482-4f25-80cf-cdbc676ee96e.jpg

Answered: line currents (IR, Ty and 1B). (c)…

line currents (IR, Ty and 1B). (c) Determine the total real supply power (W) for Q1(b) based on the 2 wattmeter measurements.

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 2.10P: For the circuit element of Problem 2.3, calculate (a) the instantaneous power absorbed, (b) the real...

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Question

Do c)

Q1 (a) A balanced star connected load of (8+j3) N is connected to a 3-phase, 415 V
and 50 Hz supply.
Draw the circuit diagram, indicating VRN, VRY and all line currents.
Calculate:
The 3 line currents (IR, Iy and IB).
The total real power (W) and power factor at the 3 phase
supply.
(i)
(ii)
(b)
An unbalanced delta connected load consisting of the phase impedances ZRY
(10+j3) 2, ZYB (12+j0) N and ZBr (8+j3) N is connected to a 3-phase, 440
V, 50 Hz supply. Draw the circuit diagram including the implementation of
a 2 wattmeter power measurement.
Using the information above:
Calculate the 3 load phase currents (IRY, IYB and IBR).
Draw a scaled phasor diagram indicating all phase and line
voltages and the three load phase currents.
(iii) Using the scaled phasor diagram or otherwise determine the 3
(i)
(ii)
line currents (IR, Iy and IB).
(c)
Determine the total real supply power (W) for Q1(b) based on the 2
wattmeter measurements.

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