Answer / 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

Answer / saravan

with the help of multi meter

Can any body tell me about partial discharge test, and why it is necessary and its procedure

1 Answers  

---

line tester lamp working in which voltage?

3 Answers  

---

What is the Ramping rate of Generator. What mena Ramping rate

2 Answers   Siemens,

---

what is meant by form factor and hoe related with the HT transmission voltage

2 Answers  

---

why any centrifugal blower draw more current in starting. consider id fan and fd fan?

0 Answers  

---

our plant maximum demand has 500 kva.need to suggest me to maintained pf 0.98.how much capacitor bank will be connect to the supply line.

1 Answers  

---

what happen ehen synchronisation is done at below rated speed

0 Answers  

---

what will happen if phases are not shorted with neutral in transformer impedance test? and if neutral is not connected with ground?

1 Answers  

---

is IS says that neutral should be brought to switch box. and this one is a recomended practice

0 Answers   Sterling Wilson,

---

synchronous motor of 13.5MW having which type protection? and how to set relay?give me relay setting calculation for different protection for this motor assume efficiency,power factor and other term if neccecery

1 Answers  

---

how to find motors H.P. whout any rating? (only give you a motor and multimeter)

3 Answers   L&T,

---

For a spring controlled governer the relation F = ar+b (F is the controlling force, r is the radius of rotation a and b are constants), indicates that the governer is

0 Answers   Caterpillar,

---