Deck 11: AC Power

Question 1

Given the following voltage and current on the load, find the power factor, average power,
reactive power, complex power, and apparent power. Also, find the equivalent impedance,
equivalent resistance, and equivalent inductance of the load. Draw the phasors for P, Q, and S.
The voltage and current are peak values.

Answer 1

Question 2

A load consists of a parallel connection of paths as shon below. Assume V, f = 60 Hz. Find the complex power, average power, reactive power, apparent power, and
power factor of each path. Also, find the complex power, average power, reactive power,
apparent power, and power factor of the entire load.

Answer 2

Alternate method for finding S:

Question 3

A load consists of a parallel connection of paths as shon below. Assume , f = 60 Hz. Find the complex power, average power, reactive power, apparent power, and power
factor of each path. Also, find the complex power, average power, reactive power, apparent
power, and power factor of the entire load.

Answer 3

Question 4

Let the voltage across a load be . Find the coplex power, apparent power, average power, reactive power, and power factor. Also, find the equivalent impedance, equivalent resistance, and equivalent
inductance of the load. Draw the phasors for

Question 5

Given the following voltage and current on the load, find the power factor, average power,
reactive power, complex power, and apparent power. Also, find the equivalent impedance,
equivalent resistance, and equivalent inductance of the load. Draw the phasors for P, Q, and S.
The voltage and current are peak values.