Answer / g c a

First to calculate current, we should know the PF of
load... without knowing the load we can't tell load
current.........

Formulais I = KVA / 1.73 * 415 * PF

Answer / sunil bhatt

Formula is here

kva X pf = volt X current
for example

500kva x 0.8 pf = 44ov X Amp

I (amp) = 500000 x 0.8 / 440v
I (amp)= 400000 /440
I (amp)= 909 amp

So, Put your available voltage & system power factor and
calculate your maximum out put current.

Answer / kola raju

The output current rating depends upon the load pf only
for example your pf is 1.0 then output is p=v*i*pf =
500kva/(415*1.0)=696 amps
if your load pfi s 0.8 500kva/(415*.8)=555 amps only

what is difference between single phase and three phase.

2 Answers   Birla,

---

we the the value of frequency is 50 HZ in DG then why we said the value inductive rectance is zero in DG?

1 Answers  

---

why neutral of 6.6 kv star connected sq. cage induction motor does not get earthed, though for earth fault protection it is must.

7 Answers  

---

Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar

0 Answers  

---

what is the relation between KVAR,KVA,KW?why we are mentioning capcitor rating in kvar?what is meant by arcing horn and horn gap in transformer?what is equipotential wire?

1 Answers  

---

why only violet glow appears in corona effect?

1 Answers  

---

why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

0 Answers   HCL,

---

how could we findout the lightning arrester failed or not in live circuit? Is there any instrument to measure the high voltage at the time of sky lighting?

1 Answers  

---

what is the rating of boiler?

4 Answers  

---

what is smart&micro grid technology?under coal gassification?

0 Answers  

---

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

---

How many losses in generators? how we can reduce them? and also in motors,transformers?

1 Answers  

---