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

Why HT 11 KV Slipring Motors are connected in star ?

0 Answers  

---

At what condition differential relay will act in transformer and ht motor?

1 Answers   Equate,

---

why should be the frequency is 50 hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50

3 Answers  

---

What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

0 Answers   Alam Group of Companies,

---

how to identified power tranfer line is how much KV????

5 Answers   Essar,

---

How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

0 Answers  

---

Can we use droop CT in neutral in place of W phase of alternator ?

2 Answers  

---

What is rccb?

1 Answers  

---

What is circuit breaker failure protection?

2 Answers  

---

How to check maintenance free battery 12V,26AH using analog multimeter

1 Answers  

---

What are the point of a single core cable to be earthed?

2 Answers   Alfanar, Jindal,

---

Will sag depends on the Specific Resistance of the conductor?if not Why??????????

2 Answers   BARC,

---