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.

How to increase the backup of three phase ups?

1 Answers  

---

why do the core of transformer saturates???

1 Answers  

---

How to PLC give the command to electrical

1 Answers  

---

Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

0 Answers   DAE,

---

what is the breaking capacity and making capacity of circuit breaker and how

0 Answers  

---

---

what will be the neutral to earth voltage while checking by the Digital multimete? and why?

1 Answers  

---

In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

2 Answers  

---

srij i need the relationship b/w KW AND KWH and with an electrical example. plz send if u can?

4 Answers  

---

Factory acceptance test. FAT. For 132 kv transmisstion towers what is that meaning and what are the tests commonly companies perform now days.

0 Answers   PKR,

---

How can we convert dc to equivalent ac??

4 Answers  

---

Earth bits close or open. Which is correct

0 Answers  

---

How induction stove works?

1 Answers  

---