Two Speed Motor Pole-changing

Two speed motors are still regarded as Energy and CO2 reducers. They give the user the opportunity to use at the required power and demand. Eg. Can be used on low speed, hence lower power option and matching actual demand. Lafert offer a complete range of two speed motors up to 160 frame. AM/AMV SERIES - Pole change: Also referred to as Dahlander is a two speed motor that offers a 1:2 speed switching (example 2/4, 4/8 etc.). There are two types of internal connection of the winding: star connection or delta connection. These motors are designed for a direct mains start-up and are of single-voltage. AM/AMV SERIES - Two windings: Two speed motors with switching ratio other than 1:2, example 4/6. 6/8 etc.; these are wound with two separate windings. Two speed motors can be wound for constant torque or variable torque (quadratic torque). TARGET APPLICATIONS Constant torque: Hoist, Root blowers, Displacement Pumps, Mixers, Ice Cream Makers Variable torque: Fans, Centrifugal Pumps

For more information on Two Speed Motor Pole-changing talk to Lafert Electric Motors Ltd