why the no.of slots in stator in not equal to the no. of
stator in rotor in induction motor????
Answer Posted / raul
yes the exact term is COGGING....which means if the stator
poles and rotor poles are equal or in integral ratio, then
there is a strong alignment b/w the stator n rotor poles
and hence the alignment torque is greater than the starting
torque.....so magnetic locking takes place b/w the stator n
rotor teeth........
Is This Answer Correct ? | 13 Yes | 1 No |
Post New Answer View All Answers
I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
On what basis the the size of Lightning arrester for buildings are selected ?
how will we calculate the copper wire load..
I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain
What is dynamo function in DG sets and draw block diagram?
HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER
Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used
what is the reason for indication of light in the earth lamps of main switchboard.if there is an earth why does one lamp get dim and the other two bright.
What is load boxes ?
What are the major reasons for balancing hydro-thermal mix?
describe the phenomena of vacuum interruption in C.B
What do you mean by transformation ratio of instrument transformer?
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.
What is the difference between resistance grounding system and resistance earthing system?