1000kva=sqt rt (800kw)sq+(?kva)sq?

Question

pls help me how to compute this in detail

thanks so much

Answer 1

compute what?

equations with "?" in the middle are not valid.

Answer 2

This is a classic power triangle question.  Basically a right triangle where the base is kW, the hypotenuse is kVA and the opposite side is kVAR.

Use the Pythagorean theorem to solve the equation.

a² + b² = c²;  or c² = a² + b²

kVA² = kW² + kVAR²

You have been asked to solve for kVAR

If you divide by 200 you'll see that this is a 3-4-5 triangle.