Answer / soumen koley

to rotate an induction motor a rotating magnetic field is
needed, which is developed by 3-phase ac supply. but the dc
supply develop a stationary magnetic field in the air gap
which can't able to induce emf in the rotor conductor at
stand still so there will be no torque. so an induction
motor can only start by ac supply.

Answer / kamlesh kothari

no, induction motor is not started with dc power supply.

Answer / muthuvel

I accept soumen point second thing is If u are giving DC
current to induction motor the cable winded for induction
will burn.For inductance Alternate current only acceptable
..

Answer / hardik tatamiya

Yes

Which type of alternator used in power station?

2 Answers  

---

what is difference between vcb and mccb

4 Answers   APTransco,

---

in delta connection, why motor rotate in high speed compared to star connection?

2 Answers  

---

what is transformer tap change HT side and LT side

1 Answers   Alstom, Sodexo,

---

How 3 phase invertor works?

0 Answers   Aero Ltd,

---

Explain the experiment on ward leonard method of speed control of a dc shunt motor.

2 Answers  

---

if a 3 point starter is not available, how can a dc motor be started?

3 Answers   Accenture, BIT, Techno Solutions,

---

how make to Incident and accident report

1 Answers  

---

What is difference between mcb and mccb.

0 Answers  

---

I have applied the post Junior Engineer-iii(c&w)in R.R.B chennaI recently . can i get any model question paper LAST 4 YEARS?

2 Answers   Data Entry Operator, RRB, SSC,

---

hi friends if you have any 400KV Substation Erection and installations Drgs please send to me.My email id:kandi.suresh441@gmail.com

0 Answers  

---

why dont we use the same pylon to carry 400 kv plus 220kv and 33 kv ?

2 Answers   Focus, Focus Energy,

---