adjustable speed drive
An electronic device that controls the rotational speed of motor-driven
equipment such as fans, pumps, and compressors. By ensuring that the motor's
speed is properly matched to the load placed on the motor, an adjustable
speed drive helps save energy. Speed control is achieved by adjusting the
frequency of the voltage applied to the motor.
| TECO-Westinghouse FM50 adjustable
Terms used to describe this category include polyphase motors, motor oversizing,
and motor rewinding.