Answer / paras315

in single phase induction motor stator has single phase
winding,when we give single phase supply, it creats a
pulsating magnetic flux in the air gap but for rotor
rotation there should be a rotating flux.so it is not self
starting.
for starting either auxiliary winding or any means which
splits the single phase flux in at least 2 phase flux can be
used

Answer / wareagle

You could have gone to Google and found this for yourself.


"Single phase induction motor can't produce continuously
rotating magnetic field in the air gap, as either N or S
pole would be present at a time. Single pole is not
sufficient to drive the rotor from one end. So a capacitor
is employed to shift the phase."

Answer / kaushal

Single phase supply to motor can't produce continuously
rotating magnetic field as either N or S
pole would be present at a time. so there will not be force
of repulsion as well as attraction This is not sufficient
to drive the rotor from one end. So a capacitor
is employed to shift the phase & to create rotating magnetic
field.

why dc series motor has high starting torque

2 Answers  

---

why power generated only 11KV not more than???????? and why power up/down is multification of 11*?=??.??? foe Example 11/33,11/66,66/11KV etc,

8 Answers   Essar,

---

how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.

0 Answers   ASM,

---

what is corona ?

3 Answers  

---

How much amperes needed for starting of 4HP motor?

1 Answers   CM Smith Sons,

---

Why neutral is not used in three phases dol starter

0 Answers  

---

Define delay time.

0 Answers  

---

what do you mean by every IC 74 first digit.why are you using this no.why not using another no.

0 Answers   Jaypee,

---

What is ELR, and where it is used ?

7 Answers   KSEB,

---

Is RTCC panel needs any control supply.

0 Answers   HPCL, Schneider,

---

what is different between auto transformer and vriac

4 Answers  

---

what is skin effect?

4 Answers  

---