Answer Posted / jay
KW+KVAR=KVA
you have to find kvar (Reactive power)
If you know the KVA and KW the formula is KVAR = Sqrt(KVA^2
- KW^2).
using the power factor and KW, find the phase angle (the
power factor is the cosine of the angle) which will allow
you to determine the tangent of the phase angle. Then the
following formula will work KVAR =KW * Tan theta
Using the same principle, find the sine of the phase angle,
then KVAR=KVA * sin Theta
Is This Answer Correct ? | 3 Yes | 2 No |
Post New Answer View All Answers
Define what is difference between fuse and breaker?
define the non synchoronism of synchoronous machine in general g or m??
give me applications of sequence bridges . (used in 3 phase un balanced systems)
Grid fault level [KA]?
can we use trip light with bus coupler?
in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?
Why are cables rated for 40 KA for 0.25 Sec fault current rating?
would you please give me any idea about the BARC interview question on electrical? i have an interview on 1st july.....plz hlp me.......its urgent......
In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.
Can you any one explain application of buccholz relay operation and pressure relif device operation of power transformer
Power factor =1.000 at factory in supply. However, PF = 0.8 at motor end. Current = 100 Amp, Voltage = 400 V. What is the power distribution loss? Can I reduce it by adding capacitor at the load feeder?
explain the function of brush less dc motor?
Name the component u would expect to find in a switchgear assembly?
the problem faced on star or delta winding connection??
11 kV line deraction check by an Engineer.