The speed minimum and maximum at which a
motor must operate under constant or variable
torque load conditions. A 50:1 speed range for a
motor with top speed of 1800 RPM means the
motor must operate as low as 36 RPM and still
remain within regulation specifications.
Controllers are capable of wider controllable
speed ranges than motors because there is no
thermal limitation, only electrical. Controllable
speed range of a motor is limited by the ability
to deliver 100% torque below base speed
without additional cooling.
motor must operate under constant or variable
torque load conditions. A 50:1 speed range for a
motor with top speed of 1800 RPM means the
motor must operate as low as 36 RPM and still
remain within regulation specifications.
Controllers are capable of wider controllable
speed ranges than motors because there is no
thermal limitation, only electrical. Controllable
speed range of a motor is limited by the ability
to deliver 100% torque below base speed
without additional cooling.
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