Hi frnds :) plz tell me that i have 100 KVA 3 phase generator so by thumb rule

Hi frnds :)
plz tell me that i have 100 KVA 3 phase generator so by
thumb rule 100*1.4 = 144 amps
and generaly we can operate at 80% load...so it will 144*0.8
=112 amps....
so now i m confused about single phase load.....if we use
that generator only for single phase the that 112 amps is
total single phase load or i can give 112 amps at red 112
amps at yellow and 112 amps at blue....
i mean that total single phase load that 100 KVA generator
will take is 112+112+112=336 amp ??

Question Posted / awaisranazai

2 Answers
3575 Views
FWO, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Hi frnds :) plz tell me that i have 100 KVA 3 phase generator so by thumb rule 100*1.4 = 144 amps ..

Answer / ramesh

No You cannot take 112 amps in each phase. you can take 112 amps in the sumation of r,y and b phase. (ie)total load current = Rph + Yph +Bph current.

Is This Answer Correct ?

4 Yes

1 No

Hi frnds :) plz tell me that i have 100 KVA 3 phase generator so by thumb rule 100*1.4 = 144 amps ..

Answer / k.prakashchandra

Current in each phase 112 A ,ph voltage say 230 V. Then
apparent power in each phase is about 26 KVA .Sum = 78 KVA
which is almost the permissible load on the gen. If you add
phase currents ,the resultant is zero as they are vector
quantities . You can have a load of 112A in each phase .

Is This Answer Correct ?

0 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

What is the effect of pd controller on system performance?

0 Answers

how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

0 Answers OPS,

How would you supply a single house hold load from a 3-phase supply coming out of a sub-station?

4 Answers

1.what to do if ferquency of any power system continue to decrease ?

5 Answers NTPC,

At no load the PF of an alternator -Zero -Zero Lagging -Zero leading -None of the above

2 Answers

Why capacitor is blow when I am starting motor ?

1 Answers

what is difference between differential protection and distance protection and how we calculate the sloop?

5 Answers OPS, Power Grid,

What are the conditions to be satisfied for parallel operation of dc generators?

0 Answers

what is the difference between upper impedance and lower impedance distance relay?

3 Answers Havells, Power Grid,

what's the simultenous maximum demand (SMD)..what the diffrent MD and SMD?

0 Answers HAL,

What is Procedure the procedure to select CT's & PT's in 66kV and above substation?

3 Answers Infotech, Vijai Electricals,

Amoung all classes of electric machines, why the transformer uses oil as one medium of cooling?

4 Answers

For more Electrical Engineering Interview Questions Click Here