3. From the analysis of figure 3.1 below: 3.1 Find the total courant I and the total impedance Zin as seen by the source if you consider only the three-load connected. 3.2 What should be value of the L(inductance) to be connected as shown in the figure so that power factor seen by the source vs(t) becomes 1. LOAD 1 IS|=10 kVA pf=0.8 lagging LOAD 2 ISl=20 kVA pf=0.6 leading Source LOAD 3 V,(1)= 200v2cos(2r50r) ĮS,\=10 kW pf=1 Volt Zia Figure 3.1 Three phase circuit

3. From the analysis of figure 3.1 below: 3.1 Find the total courant I and the total impedance Zin as seen by the source if you consider only the three-load connected. 3.2 What should be value of the L(inductance) to be connected as shown in the figure so that power factor seen by the source vs(t) becomes 1. LOAD 1 IS|=10 kVA pf=0.8 lagging LOAD 2 ISl=20 kVA pf=0.6 leading Source LOAD 3 V,(1)= 200v2cos(2r50r) ĮS,\=10 kW pf=1 Volt Zia Figure 3.1 Three phase circuit

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

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.61P

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Concept explainers

Superposition Theorem

The superposition theorem is applied to linear systems. For such systems, the output from two different inputs equals the sum of the outputs from each input separately. On applying this theorem many times we get the output from any number of inputs equal to the sum of the outputs from the individual inputs separately.

Question

3. From the analysis of figure 3.1 below:
3.1 Find the total courant I and the total impedance Zin as seen by the source if you consider only
the three-load connected.
3.2 What should be value of the L(inductance) to be connected as shown in the figure so that power
factor seen by the source vs(t) becomes 1.
Source
LOAD 1
LOAD 2
LOAD 3
V,(1)=
200 v2cos(2n50r)
IS2l=20 kVA
pf=0.6 leading
|Ssl=10 kW
|Ss,|=10 kVA
pf=0.8 lagging
L
pf=1
Volt
Zia
Figure 3.1 Three phase circuit

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