Answer / rajesh

1)induction motor is singly fed motor.Means three phase
supply is given to its stator only.But in case of
synchronous motor which is doubly fed motor 3phase acis
given to stator and dc is given to rotor.

2)generally induction motor is used in all types of
industries where maintainance less and rugged type motor is
needed.where as syschronous motor is used in applications
which demands constant speed.

Answer / safeerudeen

Induction motor is the cheapest of all motors,which runs at
a speed less than synchronous speed.Induction motor works on
the principle of Faraday's laws of electromagnetic induction

synchronous motor which runs at synchronous speed, which is
costlier than induction motor,synchronous motor is not self
starting but induction motor is self sarting

Answer / vincent omwikha

An induction motor is self starting while synhronous motor
is not, induction motor consumes lagging power while
synhronous motor can either consume lagging or leading
power,induction motor is simple in costruction, cheap in
maintanance and runs below the synhronous speed unlike the
synhronous motor which runs at the synhronous speed, is
complicated in construction and costly in maintanance &
initial intallation.

Answer / asim raza

in induction motor the speed of the rotor is less then
stater induction motor self started
in synchrons motor rotor and stater speed same this motor is
not self started

Answer / uday

in ac induction motor slip < 1 means the rotor speed is
less than the rotating magnetic field,in ac synchronous
motor slip=1 means the rotor speed and the rotating
magnetic field are of same speed.

WHAT HAPPEN WHEN A DROP OF WATER MIXED UP WITH TRANSFORMER OIL ?

4 Answers  

DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED R VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV

2 Answers  

what type of battery used for starting D.G?state its function?

2 Answers  

Difference between ELCB and RCCB?

5 Answers  

What are the disadvantages of thermal power plant?

0 Answers  

What are the protection required for Transformer, motor, Line, Generator, capacitor, that all i have to refer which standard?(Like Transformer detail IS 2026)

0 Answers  

pls someone send me sample question papers along with the key.thanks in advance

0 Answers   HPCL,

In a 3 phase induction motor(without connecting supply) if we rotate its rotor by hand and check resistance of stator winding at motor terminal box its resistance varies why ??

3 Answers   Jindal,

What is the difference between synchronous asynchronous memory?

1 Answers  

I have 3KVA Libert GTX2 UPS. I need to calculate the back up time with some load. How to calculate the Back time. I need the expert guide

1 Answers  

If the (Motor control center)Panel work on field the relay used in panel in the case this will be damage and no indication provide on panel.fault occur in panel and MCB will not trip. how happen the relay damage in panel and what effect of panel.

1 Answers  

how to calculate the current carring capacity of the conductor

1 Answers