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Relationship between theta and theta v theta i

Braeden Hamson

Feb 18, 2016
234
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Feb 18, 2016
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234
Hi guys, I'm working with AC circuits. I have the equations for avg power and reactive power. P and Q resp. Those equations have a compent sin/cos (theta v - theta I) . Additionally P Q and S (complex power) form a triangle whose angle PS is Theta. Is theta=theta v - theta I?

I feel like this is really obvious but I need a sanity check.
 

Ratch

Mar 10, 2013
1,097
Joined
Mar 10, 2013
Messages
1,097
Hi guys, I'm working with AC circuits. I have the equations for avg power and reactive power. P and Q resp. Those equations have a compent sin/cos (theta v - theta I) . Additionally P Q and S (complex power) form a triangle whose angle PS is Theta. Is theta=theta v - theta I?

I feel like this is really obvious but I need a sanity check.

There is no theta v or theta i. If you find it in a textbook, show me. Q = S * Sin(theta) and P = S * Cos(theta) . It is a simple right triangle.

Ratch
 
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