how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc

2 Answers  

---

what is full wave bridge?

4 Answers  

---

Why transformer making noise during the operation?

2 Answers   TCS,

---

Which do you think is the most significant cause of energy loss in a factory?

0 Answers  

---

Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?

0 Answers  

---

---

what is the formula for calculating motor rating? Example: If we want to rotate a 1000 kg waight disc up to 100 RPM, which size motor will require?

1 Answers  

---

what is the function of supervison relay?Draw its wiring diagram.

2 Answers   IBM, R.R. ISPAT LIMITED,

---

i want to know that how the height of Ct ,cvt ,LA calculated on the basis of creepage distance

0 Answers   Vedanta,

---

Difference between Lugs and Thimbles

0 Answers   ABB,

---

what happends when an isolater is operated on on-load

1 Answers  

---

salam&hi, i need to know about how can i calculate an enough current for the new building before i submit it to the suppliers

0 Answers  

---

Is LV shorted in magnettic balance test?If yes why?

2 Answers   Hindalco,

---