Lecture 08 AC POWER ANALYSIS

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Presentation transcript:

Lecture 08 AC POWER ANALYSIS

Ex: Find the average power for each element

Circuit in frequency domain

REMEMBER.. You may use any method of your choice to solve for current/voltage.. And, you may also apply any formula to find the power.. The right choice will save your time!

Calculate Z1

Using current divider

Calculate P for the source

Calculate P for 4 Ω resistor

Calculate P for inductor

Calculate P for 2 Ω resistor

Calculate P for capacitor

Ex:

FIND: P and Q absorbed by the load P and Q absorbed by the line P and Q supplied by the source

Calculate the circuit current

(a) The average power and reactive power absorbed by the load

(b) The average power and reactive power absorbed by the line

(c) The average power and reactive power supplied by the source

Ex: Find Io

Ex: Find the power factor

Ex: Find the power factor

Ex: (a) Find P and Q for each element (b) Find the pf of the circuit

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