1. What is the difference between ac induction motor
and ac synchronous motor?
Answer Posted / pramod
The basic difference between an induction motor(a.c) and a
synchronous AC motor is that in the latter a current is
supplied onto the rotor. This then creates a magnetic field
which, through magnetic interaction, links to the rotating
magnetic field in the stator which in turn causes the rotor
to turn. It is called synchronous because at steady state
the speed of the rotor is the same as the speed of the
rotating magnetic field in the stator.
By way of contrast, the induction motor does not have any
direct supply onto the rotor; instead, a secondary current
is induced in the rotor. To achieve this, stator windings
are arranged around the rotor so that when energised with a
polyphase supply they create a rotating magnetic field
pattern which sweeps past the rotor. This changing magnetic
field pattern can induce currents in the rotor conductors.
These currents interact with the rotating magnetic field
created by the stator and the rotor will turn.
| Is This Answer Correct ? | 41 Yes | 6 No |
Post New Answer View All Answers
what is the terminal voltage of dc series generator running at rated speed at no load?
How many points does a Circuit can have?
what is the main function of capacitors in mccs.
what is the difference between fault current ant short circuit current?
why can we use cosine wave instead of sine in ac supply as both have same rms vale and ripple factor
where the lexical paramater will use in fron end?
Alternator rotor earth fault relay circuit
Which capacitor is preferred for high voltage and frequency?
What is the need of generator relay panel
What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?
What is The Resistance Formula
which types of relay used in acb and vcb?
what is meant by flywheel and its role in retardation test
Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB
'documenˁ