A 230 V single-phase motor takes a current of 10 A and has a working PF of 0.5 lagging. Draw a scaled phasor diagram and from it determine the value of capacitor current required to improve the PF to 0.9 lagging. Calculate the value of the capacitor.

A 230 V single-phase motor takes a current of 10 A and has a working PF of 0.5 lagging. Draw a scaled phasor diagram and from it determine the value of capacitor current required to improve the PF to 0.9 lagging. Calculate the value of the capacitor.

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 2.7P: Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor,...

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Question

solve plz...

• A 230 V single-phase motor takes a current of
10 A and has a working PF of 0.5 lagging. Draw
a scaled phasor diagram and from it
determine the value of capacitor current
required to improve the PF to 0.9 lagging.
Calculate the value of the capacitor.

• A 230 V single-phase motor takes a current of 8 A
and has a PF of 0.7 lagging. A capacitor is
connected in parallel with the motor and takes a
current of 3.1 A. Draw a scaled phasor diagram of
the currents in the circuit and find the value of
the supply current and the new PF.

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