FACTORS INFLUENCING THE CHOICE OF ELECTRICAL DRIVES
(1) Nature of electric supply
Whether AC or DC supply is to be used for supply
(2) Nature of the drive
Whether the particular motor is going to drive individual machine or a group of machines
(3) Capital and running cost
(4)Maintenance requirement
(5) Space and weight restrictions
(6)Environment and location
(7) Nature of load
♣️Whether the load requires light or heavy starting torque
♣️ Whether load torque increases with speed remain constant
♣️Whether the load has heavy inertia which may require longer straight time
(8) Electrical characteristics of motor Starting characteristics
♣️Running characteristics,
♣️Speed control
♣️Braking characteristics
(9) Size, rating and duty cycle of motors
Whether the motor is going to the operator for a short time or whether it has to run continuously intermittently or on a variable load cycle
(10) Mechanical considerations
♣️Type of enclosures, type of bearings, transmission of drive and Noise level.
♣️ Due to practical difficulties, it may not possible to satisfy all the above considerations.
♣️In such circumstances, it is the experience and knowledge background which plays a vital role in the selection of the suitable drive.