Drives & Motors In Cranes And Hoists - Automation ...
For many decades, motors and drives have been utilised in electric hoists, reels and winches. Andy Pye explains how they are incorporated into these systems. The four quadrants. Drive applications can be categorised as single-quadrant, two-quadrant, or four-quadrant: Quadrant I – Accelerating quadrant with positive speed and positive torque
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