Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / iamdon
Cogging phenomenon is seen in the case of 3 phase Induction
Motor(SCIM-Squirrel Cage Induction Motor).
When number of stator and rotor slots are exactly equal and
polarity of conductors facing each other in slots is
opposite,In such cases, there is a magnetic locking between
facing conductors housed in stator and rotor slots.Since
the rotor inertia is large so motor does not start at
all.This is called Cogging.
This is avioded by skewing the rotor conductor slots over
the surface by angle in the range of 5 degree.
Author:arbelectbit@yahoo.com
| Is This Answer Correct ? | 33 Yes | 1 No |
Post New Answer View All Answers
Please tell me in DETAIL about the following 3 types of fuses or recommend me a good power system protection book or a website link ? 1.Dropout Fuse 2.Striker Fuse 3.Empulsive fuse (not sure if its impulsive or explosion fuse , sorry)
what is cogging and crawling
A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
how generator avr give to the input?
What is relation between mu(nought) and epsilon(nought)?
what is reactive power?, why its measured in VA ? is it transient behavior of system?
PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.
i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT
I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer
CAN ANYBODY PLEASE TELL ME HOW TO DESIGN A SERIES REACTOR FOR LIMITING SHORT CIRCUIT FAULT CURRENT??
Don't you have similar question banks related to Oral Certification Examination conducted by Mercantile Marine Departments / Directorate of Shipping, Ministry of Shipping for Electro Technical Officer?
How calculated single phase induction motor req. Capacitor?
it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?
Difference between field rheostat and armature rheostat.
