a new 3ph induction motor doesn't rotates their ratted speed, why ?

Answer Posted / ashok k

This is due to Slip also. Anther possible reason broken short circuited rotor ring or Rotor lamination may be broken.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

describe the phenomena of vacuum interruption in C.B

1247


How many Zones can be in Conventional type fire alarm system & how can we detect the fire in Conv. type FAS?

1373


which fault is severe and why?between lll fault and lllg fault which fault is severe and y?

1998


what is settable hystersis protection? If any body knows plz kindly post the answer..

1551


Why Neutral Isolation is required?

1819






What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer

1413


UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?

1470


difference between the applicability of nortons and thevenin theorem

1549


what is the minimum pay scale for electrical engineer (building construction)in kuwait? plz revert back with yrs of experience & pay scale respectively.

1681


sir pls send the je exam - 2008 and other model question papers..

1654


How we can change the direction of rotation of Induction motor? Prove it using graphical

1617


Why temperature rise is conducted in bus bars and isolators?

760


Is neutral transformer can be called as control transformer?

1522


For high frequency application we use which transformer?

1344


Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

3343