Answer / shujath

Power factor is cosine angle between volatge and current

Answer / suhailpro

power factor= cos( R/Z)
Active power= V*I*cos(R/Z)
Apparent Power= V*I
Reactive power= V*I*sin(R/Z)

Answer / jayanta

The total power is the apparent power which is the vector sum of real and reactive power.as the name suggest power factor is a factor of which the total power is real or useful power.it is the cosine of angle between voltage and current.

what is the use of conservator in a transformer?

6 Answers   L&T, TATA, Tata Motors,

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How to calculate cable rating for 3 phase supply?

0 Answers  

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draw a dol with the following rtds,stop/start,ct,vt and o/l supply is 6.6kv and the coil is 110v

1 Answers   Anglo Eastern,

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How does a battary stores charge in it? please explain in simple manner and in detail.thanks

0 Answers  

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0 Answers  

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why in the three pin plug all 3 pins are cutted ?

0 Answers  

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Hi All, I am working as a Technical executive in a MNC company and we have 1500KVA & 1250KVA T/F in our site, can you help me that how many maintenance tests can be conducted and what are the procedures included for the tests can you share yours answers and also give any web address to get more information on this

5 Answers   Hyundai,

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How we calculate the average power factor if the one phase is lag and another one is in lead?

1 Answers   DigiTech, MCR,

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220/33kv voltage level having 60MVA rating , which transformer is preferred two winding or auto transformer. why, kindly provide your strong technical valuable views.

1 Answers  

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How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........

0 Answers   BOC,

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what is the difference between OD and VL

1 Answers   Bescom,

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What is the principal of motor?

0 Answers  

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