Yahoo Answers: Answers and Comments for (Electrical Circuits) What is the pf? [Engineering]
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From vince
enUS
Mon, 01 Feb 2010 00:41:33 +0000
3
Yahoo Answers: Answers and Comments for (Electrical Circuits) What is the pf? [Engineering]
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From Angela: Mykra, be careful when calculating between the...
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Thu, 26 May 2016 03:36:56 +0000
Mykra, be careful when calculating between the differences between rotating eqpt and xforms. It certainly appears your referring to a generator. The phase impedance is not a constant; it depends on the generator manufacturer.

From Mr. Uncouth: Cos of the phase angle in the impedance coil c...
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https://answers.yahoo.com/question/index?qid=20100201004133AA6KJRA
Mon, 01 Feb 2010 05:08:05 +0000
Cos of the phase angle in the impedance coil circuit = .74
Phase angle of impedance coil circuit = arc cos .74 = 42.27 degrees
Inductive vars = (sin 42.27 degrees) x 269 VA = 180.93 var
Watts of impedance coil = p.f. x VA = .74 x 269 = 199 Watts
net circuit var = Inductive var  capacitive var = (180.93  50)var = 130.93var
net circuit Watts = heater Watts + impedance coil Watts = (100 +199)W = 299 Watts
System phase angle = arc tan [(net circuit var) / (net circuit Watts)] = arc tan (130.93 var / 299W) = 23.65 degrees
System power factor = cos (system phase angle) = cos 23.65 degrees = .92
Add on: You must be taking the same course as joel. I answered this same question for him 4 days ago.