Answer / ajith

the 1ph supply applied to stator wdng cant produce a
rotating magnetic field as in the case of a 3ph induction
motor..
if a 1ph is applied to the induction motor the resulting
magnetic field is only altrnating (not rotating)..
In order to make the 1ph induction motor self starting...,
2 windings are used ..startin windin n runnin wdng..called
split phase motor.. or by connectin a capacitor in series
with the start wdng.. for obtainin necessary phase
diplacement...

Answer / abhimanyu kumar gupta

Single phase IM given single phase supply given to stator
winding an alternating magnetic field develop in stator and
produce alternating flux and collides with rotor winding and
produce induced EMF at rotor since the rotor winding are
closed this produce induced current in rotor.
Due to this induced current in magnetic field of alternating
nature and this nature is not rotating. Both magnetic field
in stator and rotor are Colline's so resultant torque rotor
will 0. Hence single phase IM does not self start.
In order to make motor self start an external force to the
rotor should be given because of locking of field will
disappear.

Answer / venkat

back e.m.f reducing

What if high voltage side circuit breaker of a ehv transformer instead of lvcb? Kindly elaborate.

0 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd,

---

Explain types soft starters?

7 Answers   Siemens, TCS,

---

how to give earthing in ships?

1 Answers  

---

Type of motor stater detail and working detail

0 Answers  

---

How does a battary stores charge in it? please explain in simple manner and in detail.thanks

0 Answers  

---

---

WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?

5 Answers   L&T,

---

working principle of AC Servo Motor with its construction

0 Answers   TATA,

---

A 30KW motor running at 1450 rpm draws 56A, how would you determine if this is correct or not?

3 Answers  

---

what is a circuit breaker. Weite the types of circuit breaker.

4 Answers  

---

How many earthing pits required for diesel generator set ? Why ?

1 Answers  

---

Why USe In -48 DC Volt !

3 Answers  

---

what is the meaning of improving the power factor (give technical ans not therotical)

2 Answers  

---