Induction motor [series eak& edk]are totally enclosed fan-cooled with f class insulation in iec frame sizes having higher power to weight ratio and dimensional interchangeablity with other bis and iec series motors.These motors are manufactured in modern factory aving dept with varnishing plant winding dept with vaccum impregnation plant,die-casting dept of rotors etc.Terminal boxes are shifted by 90 to 180 centrifugal switches are not placed in the interiors of the motor but outside of the main enclosure.Winding insulation is class f specially treated to withstand 90 percent relative humidity.The induction motors are provided with starting condensers that together with auxillary winging are disconnected by cf switches after starting.
