Answer / engr. kashif

All transformers are usually of smoke grey color
bcz this color is poor absorber of heat and a good radiator of heat.
so the transformer during its operation is able to radiate
its internal heat with the help of this color.

Answer / sarmadahmed

Their color is same because most of the transformers are made up of same material (soft iron core).

Answer / srikanta

This is a ISI standardise color for soft iron core

what happen if i connect DYn11 and DYn1 vector group transformer in parrallel?other things are same like votage ration,x/r ratiob etc...

4 Answers  

---

Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance.

0 Answers  

---

PLEASE INFORM ABOUT THE IDEAL TEST RESULTS OF MAGNETIC BALANCE TEST OF TRANSFORMER 33/11 kv DELTA-STAR T/F

0 Answers  

---

Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.

0 Answers  

---

Why is transformer connect parallel? why not series? ....plz...

3 Answers   wbsedcl,

---

---

What is meant by directional power and reverse power relay ?

1 Answers   HAL,

---

If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!

0 Answers  

---

Will a load of 15A work if we connect it between one phase and earth?

4 Answers  

---

how does bode plot have an advantage over root locus? how does it determine the stability of a system depending upon the location of poles and zeroes?

2 Answers   NBKR,

---

Can any one tell me the current VAT, Sales Tax, Octroi and Excise duty for the financial year 2009 -2010. Say control panels are manufactured in maharashtra, then what will be the taxes for within Maharashtra and outside Maharashtra?

1 Answers  

---

what is timing for mccb 800A tripping?

1 Answers   L&T,

---

what is thermal setting and magnetical setting?

1 Answers  

---