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Read transformer quality testing by Inderjit Gupta. See snap shots or snippets in google books

2 Answers · Science & Mathematics · 01/09/2014

... by that square relationship they must follow Pythagoras'theorem and hence

**Pf**must be the Hypotenuse of a right angled triangle with other side...2 Answers · Science & Mathematics · 01/08/2014

... at any power factor; however, this will be 2000 watts only when the

**PF**is 1.4 Answers · Science & Mathematics · 21/07/2014

...volt amperes reactive) P = S*cos78.5 = 2,160W When

**pf**= 0.6 => S = 2,160/0.6 = 3,600VA => Q = √3600²...1 Answers · Science & Mathematics · 09/07/2014

... = S*cosθ and Q = S*sinθ and we know that the power factor

**pf**= cosθ So we can write P/cosθ = S => S = 20,000/0.72...2 Answers · Science & Mathematics · 08/07/2014

theta = angle of voltage - angle of current;

**PF**= |cos φ| =| cos (10 - 21.3 ) | = cos(-11.3) = 0.98; at least study this: http://www.rapidtables.com/electric/Power_Factor.htm#power%20factor%20calculation1 Answers · Science & Mathematics · 30/06/2014

Ship of Gold is a great book. You might try the books by Henry Petroski. There are several good books on the Wright brothers and finally there is Empires of Light which...

3 Answers · Science & Mathematics · 26/06/2014

... diffuser Beam Angle: 120° Power Factor(

**PF**): 0.9 Net Weight: 3.2kg/piece Gross Weight: 3.6kg...2 Answers · Science & Mathematics · 15/06/2014

Calculate the line currents first L1 has a line current of 50 amps = 20,000 VA/400 V, the 0.88 power factor means the current is lagging by 28.36 degrees, the inverse cosine of 0.88. The L1 current...

2 Answers · Science & Mathematics · 17/05/2014

... in KVA, not watts, due to the influence of power factor. *0.8

**PF**means that the generator is designed for a reactive (inductive or...2 Answers · Science & Mathematics · 09/05/2014