Answer / sunil mehta

In transformer, if we give DC Power to transformer then
very small emf is induced in secondary side as very small
magnetic field generated through DC supply. But if we used
AC supply then we get enough voltage on secondary side
which is our desired quantity.

Answer / abid ali khattak

Because of Meutial.induction.and sign wave frequency
induction.

Answer / victorvgp

Dc transformers are also available in markets

why on axial hitting up of air blast on hydrogen produced in oil circuit breaker,temperature rises of the core of the arc?

0 Answers  

---

What is the advantage of Neutral graunding transformer insted of Neutral graunding Resistance in generating station explain briefly.

2 Answers  

---

i want to put single phase load on scott connected transformer,eventhough how to balance the transformer.

0 Answers  

---

What is the meaning of STAR POINT? Why this important in CT and VT?

2 Answers   L&T,

---

if the supply voltage increased by N times, the x-section of conductor will be.........

2 Answers   APGenco, Electrical Tech, Ericsson, IES, Thirumalai Chemicals,

---

Does the ferranti effect has some impact on the electricity billing system on high voltage installations?

1 Answers   IISc,

---

what can i do, if i want to carrier in design as i am electrical engg?

3 Answers  

---

list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.

0 Answers  

---

who invented active elements? plz give me the complte details of active elements...

0 Answers  

---

What is function of inverter? and who it's operate & what are controlling devices are used?

2 Answers   Carrier, Dalkia,

---

what is the diffrance between earthing and grounding...?

6 Answers   Essar,

---

I want to apply for ONGC recruitment 2012 .I am BE Electrical but it is mentioned that to apply for this post you have to have Electrical supervisor certificate .so please tell me from where can i get such certificate ???

1 Answers  

---