KVAR Required = Operating KW x [Tan (A1) - Tan (A2)]

Where A1 = Inverse Cosine of present power factor
= Cos-1(0.78)
= 38.739
A2 = inverse Cosine of desired power factor
= Cos-1(0.98)
= 11.478
Tan(A1)=Tan(38.739)=0.8022
Tan(A1)=Tan(11.478)=0.2030
Hence,
KVAR Required=1320 x (0.8022-0.2030)
SO KVAR NEEDED TO ATTACHED=790 kVAR

what is counter weights.
Why the ship cranes are not having counter weights irrespect
of industrial & civil construction cranes are having counter
weights.

These questions were asked at NICL for the post of
Administrative Officer(Specialist):
1. Questions on B.Tech Project
2. What is camshaft and its working
3. Shape of a Cam
4. If Otto and Diesel Cycle has same compression ratio that
which will have higher efficiency
5. Effect on IC Engine efficiency if inlet temp increased
6. Who is the current world champion in Chess(as of Sept 2012)
7. Sports person involved in dope charges(Lance Armstrong)
8. Formula for Otto cycle efficiency in terms of temperature
9. 2016 olympics will be going to held in which city