Answer Posted / ngrjbh

sorry... with out multimeter we can caluclate
IF DC current=20A , DC voltage=48v
Load=20*48 =960w
load=960w =9.6KW

Considering the same load in A.C.
load=960w, AC voltage=230v, P.F.=0.84
To find out current=?
current=load/voltage*P.F.
=960/230*0.84
=4.97A
DC current 20A = AC current 4.97A
Plz reply with new answer ngrj_bh@yahoo.co.in

why does a dc machine has high efficiency while working as a generator than as a motor ..

1940

---

What are motor generator sets and explain the different ways the motor generator set can be used ?

1107

---

2. What are the parameters of EHT sub-station?

2304

---

What is called grain-oriented laminations?

1073

---

how to find the multiplication factor for digital energy meter and analog energy meter

2153

---

i am studying in final year can i allowed for 23rd UES of Indian army

2067

---

What is kirchoff ’s current law (kcl)?

1020

---

Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?

2049

---

DEFINE BREAKING CAPACITY OF BUSBAR & HOW IT IS CALCULATED?

5170

---

xpression 'document.FrmQF.myemail' [

1947

---

What are the main parts of central chiller plant? Explain the function of each stage.

4741

---

Why do we avoid electrical conduits in floors at apartments?

2019

---

R=*¶ l/a

1572

---

EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.

2259

---

Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

1902

---