what is the difference between core & shell type transformer ?& where we use those transformers ?

10 Answers   BNCET,

---

keeping in view of parallel operation which of the 3 phase transformer connection are possible? a)delta-delta to delta-star b) delta-delta to star-delta c) star-star to delta-delta d) delta-star to star-delta

4 Answers   Ecil, Siemens,

---

4-Why we measure the insulation resistance of main core and frame in spite of that must be connected with ground before energize the transformer?

3 Answers  

---

How can we convert dc to equivalent ac??

4 Answers  

---

On what basis do you decide the ONAN (Oil Natural air natural) or Dry type transformer for a project?

0 Answers   Semac,

---

---

What is the necessary condition for stability.

0 Answers  

---

what is meant by transformer?

11 Answers  

---

what is the procedure for cable sizing or on what basis we will calculate the size of cable?????

6 Answers   ANG, Focus, Mecon,

---

Difference between RCCB, RCBO and ELMCB.

0 Answers   Megatron Solutions,

---

Isi standard of lux level required / to be maitained in different working place general & in textaile industry.

1 Answers  

---

What is domestic transformer? Draw the connection of domestic transformer.

0 Answers  

---

how to calculate the size of cable for 100 kva load,?can somebody tell me with a formula

7 Answers   Havells,

---