What are the factors that affect the power rating and size of electric drives?

Choice of Electrical Drives depends on a number of factors. Some of the important factors are: Steady state operation requirements: Nature of speed torque characteristics, speed regulation, speed range, efficiency, duty cycle, quadrants of operation, speed fluctuations if any, ratings.

What are the factors to be considered while selecting the size and rating of motors used as a drive?

10 things to consider when choosing an electric motor

  1. Vehicle characteristics. …
  2. Driving cycles. …
  3. Vehicle configuration (electric, hybrid) …
  4. Maximal speed. …
  5. Maximal torque. …
  6. Maximal power. …
  7. Battery Capacity. …
  8. Battery Voltage.

What are the factors to be considered while selecting a drive?

The following factors should be considered while selecting a drive for particular applications.

Electrical characteristics of the motor:

  • Starting characteristics.
  • Running characteristics.
  • Speed control.
  • Braking characteristics.
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What are the different factors affecting electric motor performance?

Motor performance depends on three elements such as voltage across terminals, resistance across terminals, and magnetic force.

What are the factors that govern the selection of motors for electric drives?

Factors governing selection of motors

  • electric drive motors.
  • Nature of electric supply.
  • Individual drive.
  • Motor speed.
  • Electrical characteristics of motor.
  • Motor.
  • Mechanical considerations (motor-maintenance)

What are the factors based on which motors are selected for industrial applications?

A constant or variable torque and horsepower will be required for the industrial motor depending on the type of load the motor is driving. The size of the load, the required speed, and acceleration/deceleration—particularly if it’s fast and/or frequent—will define the torque and horsepower that is required.

What are the different classifications of load and how they affect the motor selection?

The three main electric motor load types are: Variable-torque loads – eg fans and pumps where the speed varies. With this type of load, reducing the speed of the motor by even a small amount can save a lot of energy. Constant-torque loads – eg conveyors, screw and reciprocating compressors, and crushers.

What are the criteria for selecting a motor for particular operation?

Motor Selection

  • Speed.
  • Torque.
  • Motor connection interactions (i.e. what is the motor connected to and how does that influence its performance; Mecanum Wheel example given)
  • Speed-Torque Curve.
  • Mechanical Power.
  • Constant Voltage Torque-Speed Line.

How a motor rating is determined in a continuous duty and variable load?

However, a method based on average losses of the motor for the load cycle seems to be more appropriate for selecting a motor for a Continuous Duty Motor, variable load. A motor having its rated losses equal to the average of the losses of the motor for the variable load cycle is chosen to drive the load.

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What are the factors affecting motor development?

There are several different factors that affect motor development, which include growth of the child, environment, genetics, muscle tone, and gender.

What are the factors affecting motor learning?

Factors affecting Motor Learning:

  • Verbal instructions.
  • Practice.
  • Active participation and motivation.
  • Possibility of errors.
  • Postural control.
  • Memory.
  • Feedback.

How does power loss affect the efficiency of an electric motor?

The difference of the input power to the output power, often referred to as watt loss, is actually converted to heat. Several conclusions can be made from this. A more efficient motor will cost less to operate. It could run cooler or could convert more power per volume than a similar sized motor.