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Kaeser Improves VFD Efficiency with New Motor Design



Kaeser Compressors’ latest series of 30 and 40 hp variable frequency drive compressors now features a new synchronous reluctance motor for improved efficiency during part load operation.

This new design underscores Kaeser’s continued commitment to sustainability and energy efficient system design. The motors do not use aluminum, copper, or expensive rare earth magnets in the rotors. Instead, they are made of electrical steel and feature a special profile. The unique rotor design means these motors can run at higher speeds without additional rotor warming. This increases bearing life and reduces maintenance costs.

The motors were developed in partnership with Siemens and are designed to work with the Siemens drive technology used in Kaeser’s Sigma Frequency Control (SFC) models. The drive features a specially developed control algorithm for powerful performance that delivers maximum energy savings.

Click here for more information. To be connected with your local authorized Kaeser representative, please call (877) 596-7138.

Kaeser's latest VFD models feature a SynRM motor for improved part load efficiency.

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