Answer / ashokreddyreguri

single phase supply given to single phase IM (having only
one wdg)produces only alternating flux which can only
induce emf but cannot make the rotor rotate.Auxiliary wdg
is provided to split the phase.so the motor starts as two
phase induction motor.suppply given to two phases will
produce rotating magnetic fields so the motor becomes self
starting.

Answer / senthil

because single phase motor is not a self starting,and its
starting torque is small,and it will rotate 90 Deg phase
shift only,For 360 Degree rotation starting winding is need
due to high starting torque

Answer / gunasekaran

in single phase motor strting torque is zero because average
value of the 1phase motor is zero.so zero flux

Answer / ashok mishra

just to create 2 phase thus produces rotating magnetic field caused by capacitor resister. . .

Answer / pernati raja

for starting purpose

Why we use a shunt capacitor or synchronizing Motor To Improve a Power factor pls reply me in this mail dinesh_elect_eng@yahoo.com

4 Answers  

---

what is the basic difference between capacitor and condenser ?

17 Answers   ABB, Essar,

---

in 3-phase transformer which type of transformet is used in output side?

6 Answers   Essar,

---

Do anyone know how can I calculate earthing for substation or do anyone know any software which I can use for this case

1 Answers  

---

How much must be gape bitween 2 cable on cable tray?

1 Answers   El Seif,

---

---

what is the similarity and difference between ups and inverter?

4 Answers   GMR,

---

Why usually in all electrical equipment taking more current in Y pahse like pumps,compressor,or any other applications

1 Answers  

---

What is the usega of brking resistor? and how it will useful to Drive...?

3 Answers  

---

if name plate detals of a motor or any other is missing then how to find it

1 Answers  

---

How to calculate the time setting for star connection in star delta starter? For example 10KW 3PH Induction motor.

0 Answers   Taj Group, Tata Steel Limited,

---

-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

0 Answers  

---

what is MC 61 relay

2 Answers  

---