What is power factof?
Answers were Sorted based on User's Feedback
Answer / rajendran.m
Cosine angle between voltage and current.
P.F = kw/kva
Is This Answer Correct ? | 26 Yes | 0 No |
RATIO BETWEEN ACTIVE POWER AND APPARANT POWER IS CALLED
POWER FACTOR.
POWER FACTOR= ACTIVE POWER/APPARANT POWER
= VICOS/VI
Is This Answer Correct ? | 11 Yes | 0 No |
Answer / gururaj
it is angle betwen voltage & current.it depends upon the
type load
Is This Answer Correct ? | 11 Yes | 2 No |
Answer / partha pratim debnath
Basically power factor is the cosine angle between the
active power to the apparent power.
It can be analysed through by power triangle.
p.f.=active power/apparent power
kW/kVA
Is This Answer Correct ? | 9 Yes | 1 No |
Answer / prasad
POWER FACTOR IS COSINE OF ANGLE BETWEEN VOLTAGE & CURRENT
IN AC CKT. HOWEVER IN SIMPLE TERMS IT CAN BE DESCRIBED AS
EFFICIENCY FACTOR OF LOAD IN p.u. IT SIGNIFIES WHAT AMOUNT
OF ELECTRICAL ENERGY IS REQD BY LOAD WITH A GIVEN P.F.
THUS IF TWO MOTORS OF SAY 80 KW WITH ONE HAVING P.F. 0.8
& OTHER HAVING PF 0.85, THEN FOR RATED LOAD FIRST MOTOR
WILL REQUIRE 100KVA WHILE OTHER MOTOR WILL REQUIRE 94.1KVA
OF ENERGY
Is This Answer Correct ? | 6 Yes | 0 No |
Answer / ranjana chauhan
IT IS THE RATIO OF RASISTANCE AND TOTAL INPEDNCE OF THAT
CIRCUIT AND DENOTED BY COS PHI.
P.F. = R/Z
Is This Answer Correct ? | 14 Yes | 9 No |
Power factor means the power utilized versus power delivered.
Is This Answer Correct ? | 4 Yes | 2 No |
Answer / shristhi
power factor is the cosine of angle between voltage and
current... in resistive load power factor is 1
Is This Answer Correct ? | 3 Yes | 1 No |
What will happen if I apply DC to AC transformer? please send detailed answer at habib_rahman_habib786@yahoo.com
how does circuit breaker works
Our transformer capacity is 500kva & voltage ratio is 11kv/433v step down tf.Now i need to know if my input voltage is 10500v and what would be the secondary side voltage i.e output voltage ?
How many electrones need to flow in one second to equivalent to one Ampere.
why in india the voltage generate multiply by 11,,,like 220v,440v,11kv,33kv,66kv,220kv,
3 Answers NTPC, Servotech, Tata Power,
CAN 50Hz transformer work at 60 Hz power supply? if yes how it is possible?
we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?
0 Answers Afflatus Grauver Pvt Ltd,
why rating of motor in HP ?
Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?
What is In (current rating) shown on the MCCB? Is this full load which can withstand by the circuit breaker
how capacitor pass ac voltage practically?with increase frequency and cpacitance?
What happens if we give the supply to the rotor of induction motor and make its terminal shorted?