Answer / ayan

I guess its a typo..and instead of radio it should be ratio.
The ratio of the Kva & Kvar is the sine of angle Φ ,
considering in the power triangle the base/adjacent is "KW",
the opposite is Kvar and the hypotenuse is the representing
KVA and Cos Φ is power factor.

Power is represented in KVA and KVAR because of presence of
Power factor and Reactive power.

Answer / ayan

&#934 is Phi or Theta

Answer / madhu

The ratio of KVA and KVAR will give sine value of Phase
angle. From this we can calculate Phase angle. By using
phase angle we can calculate real power and reactive power
kVAR. KVAR gives the amount of power required by the
magnetic element in the machine (Transformer & Induction
motor) to produce magnetic flux.

the winding of Generator and Motor is star or in delta ? and why

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What is meant by analogous system?

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Which theory is used in the analysis of salient pole rotor synchronous machines? Who is credited for this developement? Could the same theory be used for cylindrical rotor synchronous machines?

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if i conncet ct with ct ratio of 600/5 to an energy meter having ct ratio of 100/5, the reading show by the meter will correct, if wrong is there any method to calculate correct value with shown value, if yes please state it.....

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why transformer not used to starter

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2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation

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Compare salient pole and cylindrical rotor machines.

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Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

0 Answers   HAL,

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What is Load sharing of Transformer ?

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my company total load is 1000kw, 415volt, all load are inductive load. incoming powerfactor is .8. we want to have0.95 pf connecting capacitors. so now how much rating of capacitors we have to connect? show how?

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415v 14kw so can u tell me how i can measure the cable size.then size of the earth also

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Difference between KW & kVA

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