Answer Posted / gopi

in squrielcage induction motor the rotor bars are short
circuited. there is no provision of including resistances
on rotor side.
but in slip induction motor, the rotor bars are connected
to slip rings for providing and an external resistances.
thats why tha rotor resistance starter can be used in
only slip ring induction motor.

Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

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