Is it possible to power factor more than unity?
Answers were Sorted based on User's Feedback
Answer / praveen420
No, it is not possible because
p.f=cos(angle)and cosine function is between (-1,1)....
Is This Answer Correct ? | 57 Yes | 5 No |
Answer / rinto
no, it is not poosible to be the power facto more than
unity. because, cosine function has a maximum value 1 which
represents the p.f
Is This Answer Correct ? | 22 Yes | 2 No |
Answer / rakesh
no, power factor can never be more than unity.
power factor is the ratio of real power delivered to the
apparent power.
=> pf = P/|S|
where P = real power,
s = complex power. s= sqrt(p^2 + q^2)
this means at most p can be equal to |s| if Q
i.e reactive power is zero.
so at most power factor can be unity.
real power (p)= v*i*cos(angle)
and apparent power = v*i
and that's why pf comes cos(angle).
Is This Answer Correct ? | 17 Yes | 0 No |
Answer / shafi
No, Its not possible because cosine never more than 1
Is This Answer Correct ? | 7 Yes | 0 No |
power factor = cosine of angle between v&I & angle cannot
be less than zero
cos0 = 1 if angle increases p.f will decrese
cos 30=0.8
cos 60=0.5
cos 0=1 there fore p.f cant be less than unity
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / mr.sharif
Actually P.F is related to the loads so it is not possible
for the P.F to beyond unity,If it goes beyond unity then it
is treated as power source & it is no more called as load
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / gunasekaran
yes it is possible but it is not necessary.
Is This Answer Correct ? | 1 Yes | 17 No |
what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?
On PVC conduit the class "A" "B" or "C" is marked what does it shows. Either its thickness or its composition?
Why armature rheostat is kept in maximum position?
kindly arrange to send me RRB Bangalore previous question paper for JE/Electrical and JE/Signal I am going to write exam on 2010
what is the differents and advantages of Electro magnetics relay and static relay ? what is the numerical relay ? advatages?......
does magnetic interlocking take place in an induction motor ?
which safety we have to take when we go for work?
How calculated single phase induction motor req. Capacitor?
WHAT IS THE MEANING CREEPAGE DISTANCE
Explain the advantages and disadvantages of thermal power plant?
at which voltage level arcing ground is occurs ??????????
IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8