WE CAN ALSO SUPPLY :

• Higher number of starts per hour,

• Customised Duty Cycle,

• Supply voltages 220/380/400/440/660,

• Supply frequency 60 Hz.,

• Special mounting and shaft extension dimensions,

• Thermistors and space heater ( for frame sizes 180 and above.)

• Matching of rotor data and major mounting dimensions to any imported/indigenous specifications,
  

• T. Box LHS / RHS for wound rotor motor frame 180 - 225 & LHS Terminal Box / Top Box for cage rotor motor ( frame 132-225 ) can be provided.

SELECTION OF MOTORS :

Choice of cage and wound motors may be based on the following criteria.
Cage Motors may be used where

• The driven equipment is to be accelerated rapidly with a fixed sequence of operation and uniform load conditions. Example : A workshop crane equipment loading a conveyor belt.

• Almost identical load conditions having both directions of rotation. Example : long traverse or cross traverse to grantry crane.

• Speed control not necessary.

• Robust and maintenance free requirement considering site conditions.

• Reduced cost considerations.

• Normally used upto 250M frame size.

Cage motors may not be used where

• Precise speed control is necessary. Example : slow and fast handling of load during hoisting and lowering. Alignment of crane over a furnace opening etc.

• Non-uniform loading conditions and sequence of operation.

• Large number of starting and reversals are required during operation.

• Starting torques generally more than 2.5 times the rated torque are required.