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

What is measurement?

0 Answers  

---

What will happen if we give transformer a dc not ac

5 Answers  

---

In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?

0 Answers  

---

what are different type of triping equipmen like MCB,MCCB and their differences

3 Answers   ABB, Schneider, UPPCL,

---

how do i calc busbar size for a rated current?

1 Answers  

---

---

what mean by power factor

2 Answers  

---

if we use a normal natural thundering; than approx how much amount of electricity we generate?

1 Answers   Visa Steel,

---

Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

0 Answers  

---

what are the preventive maintanance actions taken for air circuit breaker? please answer me

0 Answers   MAHINDRA,

---

Why the capacitor bank is keeping on for electricity supply and keeping it off for generator supply

3 Answers  

---

will we have to design the UPS differently for both i.e. if we want to connect the two batteries in parallel and/or we want to connect the two batteries in series ?

4 Answers  

---

specify the inbuilt protections in DG

0 Answers  

---