Answer / jainankit784

the defination of power factor is the cosine angle between
voltage and current.
but maximum cosine value is 1 and minimum is -1.
so power factor above 1 is impossible.

Answer / mehul

because power factor is the ratio between the active power
to apparent power.so it is impossible to any load get uses
more than the apparent power.from where he get the more power.

Answer / anupam

power factor is ratio of;
cos(phi)=resistance/impedance,
impedance > resistance, in a given ckt hence,
power factor<=1

Answer / pillay

power factor is said to be lagging say 0.2 to leading say o.2.Unity means it is not leading or lagging. Now pf is the angular difference between the voltage and amperes. When a voltage is applied across a resistive load the current travels along the voltage that means unity pf. when the voltage is applied across an inductor the current will flow later than the voltage this is said to be lagging pf, but when you apply across a capacitive load the current will flow faster than the voltage which means it is leading. so you will get a pf lag"g from o.o1 to 1 or lead"g o.o1 to 1(unity) So there is NO not more than 1.

Answer / lisman setiawan

POWER FACTOR is not COS PHI !!!

POWER FACTOR = only ratio Real Power(S) and Active Power(P).

COS PHI = only ratio V and I.

S=P+Q
Thats why P impossible greater than S!

Answer / er. ankush miglani 9718151073

powe factor more than unity is possible but if it is so
the ckt becomes a sorce and starts supplying powr to the
mains
it happened coz the current starts leading voltage by an
angle mopre than 90 deg. and stsrts feeding the mains.

so powerv factor cant be more than 1

how much the voltage & resistance should be ,between earth & neutral points.?& why?

6 Answers  

in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?

0 Answers  

how do you select the ct/pt rating in substation

1 Answers   Apollo, Shreem Electric Ltd, Tata Motors,

in three pin pluge there three pins one is phase and second is earth third is nutral why nutral high diameter compare with phase and earth

10 Answers   Radiant,

What is the AVR in DG & its functios

2 Answers   Godrej,

How PSV sizing being done

0 Answers  

resitance in ac=1.6*resistance in dc

3 Answers  

ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?

0 Answers  

16kv transformeris stolen in my village.and department is not taking action.then what should i do.any shortcut .please help any idea

1 Answers  

What is PMG and AREP excitation system in generator

3 Answers  

What is “pu” in electrical engineering?

0 Answers  

What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

0 Answers