Answer / raghavan.k

Magnetic poles in the rotor. Magnetized by dc excitation. This is where a heteropolar magnetic field is set up.

how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

0 Answers   ABB, Visa,

---

I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.

0 Answers   Bhel,

---

What is the min and max ohmic value for earthing?

15 Answers   NewTek, Wipro,

---

How to calculate VCB current rating for 2000 KVA transformer

1 Answers   Yamuna Power and Infrastructure Ltd,

---

in india single phase is 230v and three phase is 440v but in other countries single phase is 110v and three phase is 380v why..?

2 Answers  

---

ELECtrical

2 Answers   Bahwan Engineering, Bhel, Electrosteel, NBCC, Qatar Airlines,

---

how we can select a transformer based on a particular load. suppose we have 4 motors of rating 40 h.p , 50 h.p, 80 h.p & 100 h.p. then what rating of transformer we can select. urgent. pls reply

6 Answers  

---

what is the purpose of battery tap voltage.

3 Answers   ABB, Crompton Greaves,

---

how can we calculate the ratio of caustic soda and water in lrs.

0 Answers  

---

What is the difference between an ELCB and a RCD?

2 Answers   Schneider,

---

what's the meaning of the negative going half cycle in the circuit containing a bulb and a switch in series with a input ac source. i mean what happens in the -ve cycle. the dir. of current changes or any other thing. if dir. changes then why we use fuse in only phase wire.

2 Answers  

---

What is the output of 25 kva 11/.4 kv transformer in kw ? Plz generalized it...

3 Answers   NTPC,

---