a.fp = 0,945 ind vT(t) = 765,9 cos(377t - 7,77°) Vb.fp = 0,945 cap vT(t) = 765,9 cos(377t + 7,77°) Vc.fp = 0,845 ind vT(t) = 765,9 cos(377t - 7,77°) Vd.fp = 0,845 ind vT(t) = 765,9 cos(377t + 7,77°) V e.None of the previous E9.19 Find the power factor of the source and us(t) in Fig. E9.19 if f = 60 Hz.Figure E9.19Ο.ΖΩUs (1)j0.4 Ω50 kW0.82lagging50 kVA0.95leading+480/0° Vrms

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Answered: E9.19 Find the power factor of the…

E9.19 Find the power factor of the source and us(t) in Fig. E9.19 if f = 60 Hz. Figure E9.19 Ο.ΖΩ Us (1) j0.4 Ω 50 kW 0.82 lagging 50 kVA 0.95 leading + 480/0° Vrms

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 2.27P: An industrial load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8...

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Concept explainers

Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.

Question

fp = 0,945 ind v_T(t) = 765,9 cos(377t - 7,77°) V

fp = 0,945 cap v_T(t) = 765,9 cos(377t + 7,77°) V

fp = 0,845 ind v_T(t) = 765,9 cos(377t - 7,77°) V

fp = 0,845 ind v_T(t) = 765,9 cos(377t + 7,77°) V

e.None of the previous

E9.19 Find the power factor of the source and us(t) in Fig. E9.19 if f = 60 Hz.
Figure E9.19
Ο.ΖΩ
Us (1)
j0.4 Ω
50 kW
0.82
lagging
50 kVA
0.95
leading
+
480/0° Vrms

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