Answer / k.prakashchandra

A slight correction in the above.As frequency increases ,F
decreases for the same voltage.B max being constant,A is
reduced,and hence smaller size

Answer / jagadeesh

e=4.44*F*N1*(Bmax*A)
freq increases then Bmax increases
but product of Bmax and A constent then automatically decreases

how many winding in the single phase transformer?

3 Answers  

---

Do we really need wheels for the transformer

1 Answers  

---

how will you find out the fuse failure by remote operation?

1 Answers  

---

In dc ckt. 24v or 110v, which one is more efficient and why?

0 Answers  

---

What happens when reactive power enters a system?

6 Answers  

---

What do you mean by turns ratio of instrument transformer?

0 Answers  

---

in small capacitor we use uf( micro farad) and in big quantity we used kvar. i want to know that in 1 kva how much will b uf(micru farad).

2 Answers  

---

for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.

0 Answers   wbsedcl,

---

What are the industrial applications of Superhetrodyne Receivers ? What are merits & De-merits of SuperHeterodyne Receivers ?

1 Answers   Airtel,

---

Current chopping mainly occurs in air blast circuit breaker.why?

1 Answers  

---

The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.

0 Answers  

---

What are the different pre-commissioning tests that are performed on the distribution transformer, power cable and switchgear (11kv)?

1 Answers   Hitech, Reliance,

---