Learning Goal:To use information about the power provided by a source or absorbedby a load to calculate average power, reactive power, apparentpower, and the power factor.Before completing this tutorial, make sure you are familiar with therelationships between average, reactive, and apparent power and thepower factor.Part A - Calculating average power, reactive power, and the power factorA load absorbs S = 18 kVA at a leading power factor of pf = 0.90. Use this information to calculate the average (P) and reactive (Q) power for the load.Enter comma separated numerical answers with three significant figures.► View Available Hint(s)P, Q =SubmitPart B - Calculating apparent power and power factorS, pf =SubmitV ΑΣΦ ↓↑A load operates at a voltage of V = 100 V-rms and absorbs P = 70 W and Q = 37 VAR of power. Use this information to calculate the apparent power (S) andthe power factor (pf) for the load.Enter comma separated numerical answers with three significant figures.► View Available Hint(s)Z =VSubmitΑΣΦvecPart C - Calculating load impedanceV ΑΣΦvecvecw?A load absorbs 45403 W at a lagging power factor of pf = 0.57. If the current flowing through the load is i = 0.001 A-rms, determine the impedance of the load.Enter a complex number with three significant figures.► View Available Hint(s)??kW, KVARΩVA, no unit

"Since you have posted a question with multiple questions, we will provide the solution only to the…

Part A - Calculating average power, reactive power, and the power factor A load absorbs S = 18 kVA at a leading power factor of pf = 0.90. Use this information to calculate the average (P) and reactive (Q) power for the load. Enter comma separated numerical answers with three significant figures. ▸ View Available Hint(s) P, Q = Submit ΑΣΦ|1| vec ? kW, KVAR

Part A - Calculating average power, reactive power, and the power factor A load absorbs S = 18 kVA at a leading power factor of pf = 0.90. Use this information to calculate the average (P) and reactive (Q) power for the load. Enter comma separated numerical answers with three significant figures. ▸ View Available Hint(s) P, Q = Submit ΑΣΦ|1| vec ? kW, KVAR

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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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

Learning Goal:
To use information about the power provided by a source or absorbed
by a load to calculate average power, reactive power, apparent
power, and the power factor.
Before completing this tutorial, make sure you are familiar with the
relationships between average, reactive, and apparent power and the
power factor.
Part A - Calculating average power, reactive power, and the power factor
A load absorbs S = 18 kVA at a leading power factor of pf = 0.90. Use this information to calculate the average (P) and reactive (Q) power for the load.
Enter comma separated numerical answers with three significant figures.
► View Available Hint(s)
P, Q =
Submit
Part B - Calculating apparent power and power factor
S, pf =
Submit
V ΑΣΦ ↓↑
A load operates at a voltage of V = 100 V-rms and absorbs P = 70 W and Q = 37 VAR of power. Use this information to calculate the apparent power (S) and
the power factor (pf) for the load.
Enter comma separated numerical answers with three significant figures.
► View Available Hint(s)
Z =
V
Submit
ΑΣΦ
vec
Part C - Calculating load impedance
V ΑΣΦ
vec
vec
w
?
A load absorbs 45403 W at a lagging power factor of pf = 0.57. If the current flowing through the load is i = 0.001 A-rms, determine the impedance of the load.
Enter a complex number with three significant figures.
► View Available Hint(s)
?
?
kW, KVAR
Ω
VA, no unit

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