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Motor Characteristics DC Brush Type Brushless DC Permanent Magnet AC Induction

AC-DC Motor Comparison. Motor Characteristics DC Brush Type Brushless DC Permanent Magnet AC Induction Efficiency (%) at full load 85-90 95-97 94-95 Efficiency at 10% Load 80-87 73-82 93-94

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Motor Characteristics DC Brush Type Brushless DC Permanent Magnet AC Induction

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  1. AC-DC Motor Comparison Motor Characteristics DC Brush TypeBrushless DC Permanent MagnetAC Induction Efficiency (%) at full load 85-90 95-97 94-95 Efficiency at 10% Load 80-87 73-82 93-94 Max. RPM 4,000-6,000 4,000-10,000 9,000-15,000 Cost per shaft Hp $100-150 $100-130 $50-75 1 Hp = 746 Watts Other Characteristics AC Motor DC Motor Single-speed transmission Multi-speed transmission Light weight Heavier at equivalent power Less expensive More expensive More complex controller Simple controller Version 1.0, updated by gh, 5-28-02

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