Load 1 Load 2 24 kW 40 kW pf = 0.8 lagging pf = 0.95 lagging A 240-Vrms, 60 Hz source supplies two loads as shown above. Find the capacitance of a capacitor connected in parallel that will raise the power factor to unity. O 3.14 millifarad O 4.45 millifarad O 1.43 millifarad O 5.74 millifarad

Load 1 Load 2 24 kW 40 kW pf = 0.8 lagging pf = 0.95 lagging A 240-Vrms, 60 Hz source supplies two loads as shown above. Find the capacitance of a capacitor connected in parallel that will raise the power factor to unity. O 3.14 millifarad O 4.45 millifarad O 1.43 millifarad O 5.74 millifarad

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

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.

Question

Load 1
Load 2
24 kW
40 kW
pf = 0.8
lagging
pf = 0.95
lagging
%3D
A 240-Vrms, 60 Hz source supplies two loads as shown above. Find the capacitance
of a capacitor connected in parallel that will raise the power factor to unity.
O 3.14 millifarad
O 4.45 millifarad
O 1.43 millifarad
5.74 millifarad

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