what is cogging and crawling
Answer Posted / jisaan
cogging is a magnetic locking when rotor teeth moves with stator teeth causing noise in the motor.
Crawling is causedby the 7th harmonics affecting the speed due to interference.
| Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
how we can calculate 2 phase welding transformer rating or total power?
what happened when we supply a dc current in dc motor?? can it worked properly?
why are the maintaine power factor and how can this control and this is how work.
Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.
How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?
wow to calculate the transformer rating(KVA)
Either It Possible a dc Motor to Run On Ac Drive [ Ex : ACS 800 , Yaskawa F7 ] If it is Possible How Pls Inform Me dinesh_elect_eng@yahoo.com
How will be the single line diagram of series trip HT breaker? how it works?
what is the difference between electrical and electronic choke?
can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?
Explain how you intend to work under pressure to meet up with deadline target?
can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?
can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?
for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.
EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR CIRCUIT BREAKER.