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POLE-CHANGING MOTORS - POWER ON DEMAND.

Conventional asynchronous motors work in the operating range of the linear speed-torque characteristic. In this operating range, only a small load-dependent adjustment of the speed via the slip is possible. A pole-changing motor, on the other hand, has two to four different pole pair numbers, which can be switched to set the different speeds.

To our pole-changing motors

APPLICATIONS FOR POLE-CHANGING MOTORS

Typical applications for a pole-changing drive are operating ranges in which the motor is started from a low speed level. This type of motor is used when no frequency converters or gearboxes are used for speed adjustment. Such requirements arise when there are restrictions in the available installation space. They are also suitable for drive systems in which there are precisely defined applications for speeds and the motors are only operated at the lower speed level for short periods, such as in conveyor systems and machine tools.

MAXIMUM EFFICIENCY

Optimum efficiency at any speed

A key advantage of pole-changing motors is their ability to switch between different operating modes as required. This allows them to be efficiently adapted to the specific requirements of the application, resulting in improved energy efficiency and a longer service life for the motor.

ADVANTAGES OF POLE-CHANGING MOTORS

Changing speeds over two or more stages in a combined drive unit

Reduction in the complexity of the overall system by eliminating frequency converters or gearboxes

The motor can be started at low speed

Lower drive noise emissions in machines such as fans and pumps thanks to adaptable speeds