Answer / mariappan

Power factor is the phase angle difference between Voltage
and current waves. When the power factor low, it draws more
current to maintain the power

Answer / pragati

power factor is defined as the cosine of angle between
voltage and current.

From the power triangle, we can define power factor as the
ratio of active power and apparent power.

It is also defined as the ratio of resistance and impedance.

Answer / kravi

my be defined as power factor is a apparent power/tru power
(KW/KVA)

Answer / ahir

pawer factor is define as ratio bet. resistance and reactance.....(R/Z)

IT`S ALSO phase diff. bet. vol. & current.....
it may be lagging or leading type,,,

Answer / pragati

Power factor is defined as the cosine angle between voltage
and current. i.e.,power factor is cos$.

KVA=KW/cos$

To improve power factor,we have to decrease the Apparent
power i.e.,KVA.

What will be the effect of in HT XLPE 220 KV cable when one side of the Armour/cable ends are not grounded. Will there is difference between 3-phase voltages? like: if A. Both End of Cable grounded Phase Voltages:- V1=219 KV, v2=220 Kv, v3=220 KV. B. One End is grounded other is not: than Impact on Phase Voltages:- V1= KV, v2= Kv, v3= KV. Remain same or unchanged??

3 Answers   Jamshoro,

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Direction of flow of active power and reactive power with logic?

0 Answers  

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what is meant by impedence? can you describe easy becuse iam not well familier in electrical?

2 Answers  

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what is main reason for grid earthing for any industry

4 Answers  

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How much resistance between neutral earthing and body earthing of Power transformer?

1 Answers  

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At site, we have 30Kw motor (3 phase, 400V,50Hz) and FLC 54A as per the nameplate. At the time of starting it draws 840A instead of 390A (7.2%). As per the data sheet also its 390A starting current. it thru a dol starter from the MCC. can anyone tell what is the problem in the motor

5 Answers   ME,

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what is spadar bar .why I use in DC generator.

0 Answers   BSL,

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What is the use of bundle conductors?

0 Answers  

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for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

0 Answers  

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What is dry and wet flashover.

1 Answers  

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what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

0 Answers   Thermal Systems,

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working of bulb?

1 Answers  

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