In a synchronous motor armature current flows due to
revolving flux which in turn rotates the load,but in no
load condition armature current is zero hence thr is no
revolving flux then how motor rotates?
Answer Posted / amita sharma
DUE TO RESIDUAL MAGNETISM THERE IS SOME FLUX WHICH INDUCES
EMF IN THE ROTOR AND THERE FORE THE MOTOR ROTATES.
Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
what is the current density of copper & alluminium.
How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.
what are the available sizes of pin type terminal lugs in the market today?
how many current required for hypo test
What is the two pole structure?
What are the components of feedback control system?
Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?
lenz law application and define
why core is useful for a transformer ?and also in its operation ?
What is star-delta transformer?
hi friends if you have any 400KV Substation Erection and installations Drgs please send to me.My email id:kandi.suresh441@gmail.com
what is effect of leading power facter on the system and billing
how calculated Transformer losses.
What are the specifications for conducting earth leakage test as per IEC standard?
what is the most permissible winding temp when we conducting a generator load test?(condition no load)