Advantages of induction motors

Low cost production

Magnet less

No speed sensor

No Voltage protection module

Field weakening easy

Low losses at high speed because of field weakening

# Stator diameter:           24 – 640 mm      

# Speed range: up to 300,000 rpm           

# Output:                            up to 500 kW     

# Continuous torque:     up to 5,000 Nm

The asynchronous motor is a highly sophisticated motor concept that is frequently given preference over other drive systems on account of its proven robust nature.

http://www.keb.com.tw/ate.php