Answer / ravi teja

for 3-ph system
Kvar=Sqrt(3)*v*i*sin(phi)
or Kvar=kw*tan(phi)

and for value of capacitance when kw or kvar is known

c=KVAR/(2*3.14*f*v^2) when capacitors are connected in Star

c=KVAR/(6*3.14*f*v^2) when capacitors are connected in Delta

I think the above information is in line with your question

If u want any further details mail me @ raviteja.vaka@gmail.com

sir, i have completed engineering diploma in electronics and now got the call letter for written exam for the post "junior engineer" from rrb chennai. could you help me about the model and type of questions that i should prepair?

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