Jules: Created page with "== Load Characteristics == === Constant Torque Loads === In this load characteristic, the torque is constant across the entire speed range. The power is therefore directly p..."

2020-11-22T07:55:56Z

Created page with "== Load Characteristics == === Constant Torque Loads === In this load characteristic, the torque is constant across the entire speed range. The power is therefore directly p..."

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== Load Characteristics ==

=== Constant Torque Loads ===

In this load characteristic, the torque is constant across the entire speed range. The power is therefore directly proportional to the speed and therefore, reducing the speed will also reduce the power required in a linear fashion.

e.g. [http://en.wikipedia.org/wiki/Screw_compressor screw compressors] and [http://en.wikipedia.org/wiki/Conveyor_system conveyors]

[[Image:Constant_torque.png]]

=== Variable Torque Loads ===

Also called quadratic torque loads, the torque of the load is proportional to the square of the speed. The load power is therefore proportional to the cube of the speed.

e.g. [http://en.wikipedia.org/wiki/Centrifugal_pump centrifugal pumps], fans and blowers

[[Image:Variable_torque.png]]

=== Constant Power Loads ===

In this load characteristic, the power output of the load is constant across the entire speed range, and therefore torque requirements are high at low speeds.

e.g. Centre driven [http://en.wikipedia.org/wiki/Winding_machine winders] and [http://en.wikipedia.org/wiki/Spindle_%28tool%29 machine tool spindles]

[[Image:Constant_power.png]]

=== Constant Torque / Power ===

This load characteristic is a combination of constant torque in one speed range and constant power in another.
e.g. [http://en.wikipedia.org/wiki/Paper_machine paper making machines]

[[Image:Constant_torque_power.png]]

=== High Starting Torque - Constant Torque ===

This load characteristic has high torque at starting and low speeds, followed by constant torque at higher speeds.

e.g. [http://en.wikipedia.org/wiki/Extruder extruders] and [http://en.wikipedia.org/wiki/Positive_displacement_pump#Positive_displacement_pump positive displacement pumps]

[[Image:High_start_torque.png]]

[[Category:Modelling / Analysis]]

Motor Driven Load - Revision history

Jules: Created page with "== Load Characteristics == === Constant Torque Loads === In this load characteristic, the torque is constant across the entire speed range. The power is therefore directly p..."