there are a transformer and a motor. both are connected to
3phase, 415 Volt, 50Hz power supply. Both are working with
induction principles. Then, why, motor is rotating and
transformer is not rotating.

Answer Posted / atul

In transformer both primary & secondary wdg are wound on same core material so there is no need to cutting the flux as it link with secondary. eg mutual induction.
But in motor both wdg are wound seprately so to produce induce e.m.f. there is need to cut the flux so the rotor rotate to cut the flux .eg dynamic induction.
Therefore motor rotate due to dynamic induction & trancformer not rotate due to mutual induction as both are induction principal.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

why the neutral line is not giving shock to us if we touch it ?

1348


What is the meaning of loop in transformer

1203


What is PEC??Applications........

1510


How to test the Secure Elite 440 Multi function meter working condition.

1614


is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

1592






What are the advantages of instrument transformer?

639


why current is constant on d.c?

1586


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1316


Explain what is use of lockout relay in ht voltage?

683


how to handle 2500 kva transformar

1140


What is the differentional relay...what is the work of this in power Tx. how it is works..

1453


What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.

1849


WHATIS TIME CONSTANT? WHATIS ITS SIGNIFICANCE? ILLUSTRATE THROUGH EXAMLES.

1677


how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

1860


What are linear and non-linear systems?

651