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AC Maximum Power

0 votes

asked Dec 14, 2015 in ELECTRICAL ENGINEERING by anonymous

1 Answer

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Step 1:

Maximum Power Transfer:

For any power source, the maximum power transferred from the power source to the load is when the resistance of the load image is equal to the equivalent or input resistance of the power source image.

Apply Thevinin's theorem:

Find Thevinin's equivalent impedance.

1.Open the load resistor.

2.Open Current Sources and Short Voltage Sources.

3.Calculate the Open Circuit Impedance. This is the Thevenin Impedance (image).

Redraw the circuit:

image

Observe the circuit:

image is in parallel with image.

image

image

image

image

image

image

image

image

image

image.

Step 2:

image is in series with image.

image

image

image

image.

Convert the image into polar form as image.

Solution:

image.

answered Dec 14, 2015 by Sammi Mentor

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