Answer / kavitha.s

it is ratio of active power to apparent power is called
power factor. it is expressed as PF= KW/KVA

Answer / bhupendra

Power factor is cosine of angle b/w voltage & current.
Mathematically
Cosφ=Power/Voltage*Current)
Cosφ=R/Z
where R= Resistance
Z= Impedance

Answer / shaikh aijaz

it is the cosine angle between voltage and current,
and from impedance trangle it is the ratio between
rasistance and impedance,
cos0=r/z
it is also define as the ratio between active power and
apparent power.cos0=kw/kva

Answer / amit rajak

power factor is the cosine angle between voltage and current
which balances both these electrical quantities.It is
ideally considered as 0.8 for electrical equipments for its
maximum efficiency.if it is not properly regulated than
there may be rise of any one of the above parameters which
will definitely effect the efficiency


it can be properly regulated by using capacitors in
domestic installation systems

Answer / 98794

IT IS A COSINE ANGLE B/V APPLIED VOLTAGE AND CURRENT

How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel

0 Answers  

Describe kW and kva and difference between

4 Answers   BTM,

On what basis the the size of Lightning arrester for buildings are selected ?

0 Answers   KGD,

How transformer neutralshould earthed ? Transformer neutral connected to earth mat in substations, right or wrong ?

4 Answers  

If the Supply voltage is increased by n times, the cross section of conducter will [increase/decrease] by ________ times ?

4 Answers  

what is motor?

2 Answers   UIU,

can i connect wavetrap in 2 different phase in EHV line?

0 Answers  

how to calculate the tarriff for an industry whose kva demand is 10 mva

0 Answers  

Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

0 Answers   HAL,

what are pilot cells

0 Answers   KSEB,

what is difference between c-power & u-power air circuit breaker?

2 Answers   Areva, IIT, Marine Electricals,

What is the function of the circuit breaker failure relay?

0 Answers