Answer / birinchi narayan borua

dc exicitation through slip ring is used to get uniform
sinusoidal magnetic flux in the rotor winding which will
lock with the sinusidal magnetic flux of the stator
winding, and hence rotate with synchronous speed.

Answer / dipen

by giving the Dc excitation it will create imagenary
poles to lock the stator pole so that syn.motor run at
syn.speed.

Why red,yellow,green colours lamps are used in the traffic control?

2 Answers   Samtel,

---

define reflection method?

0 Answers  

---

if one potential missing in energy meter , how much % slow the energy meter?

1 Answers   NTPC, SK,

---

what is inductive voltage transformer? what is its application and how it differs from capacitive voltage transformer?

1 Answers   NRSC National Remote Sensing Centre,

---

Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?

0 Answers  

---

---

Why we are designed only 11Kv and 6.6Kv Alternators, not 33Kv Alternators and Power Transmission side we are designed only 220kv, 120kv, 66kv, 33kv, 11kv, and 440volts, not 20kv, 50kv, 100kv.

2 Answers  

---

What is the difference between earth and neutral

3 Answers  

---

what is meant by dielectric breakdown ? where we using HV test kit & what purpose?

3 Answers   ITC Infotech,

---

working of diesel generator ?

0 Answers  

---

Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

0 Answers  

---

How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?

0 Answers  

---

what is the necessity of under ground cables ??

0 Answers  

---