What is the formula to calculate the rating of power cable for three phase current.

0 Answers  

---

Please explain, how to test vector group of tranformer(Delta y1) . Thank

0 Answers   PGCB,

---

eddy current losses depends on?(a-max magnetic feild,b-avg magnetic feild,c-on frequency,d-on square of frequency)?

3 Answers   Ecil,

---

what is the 2MVA distribution transformer efficiency

1 Answers  

---

If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

0 Answers   Nalco, NTPC,

---

why table fans rotate clockwise .while ceiling in anti clockwise?

4 Answers  

---

what is the difference between brushed alternator ,brushless alternator & permanent alternator ?

1 Answers  

---

In induction machine when the load increase the current will increase .why? what is the relation ship between the sleep and current drown by stater?

1 Answers  

---

If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1 Answers  

---

Hi, This is Laila. I am selected for syndicate bank interview. Could you please share your views and the questions asked if you have faced the interview My email id is laila_honey09@yahoo.com Please send as fast as u can.Thank You Thanks... Laila.

0 Answers   RRB,

---

how does commutator convert a.c to d.c?

0 Answers   NRSC National Remote Sensing Centre, RBC,

---

what happens in a genarator when rotor supplied with ac instead of dc

3 Answers  

---