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When a servo motor that’s big enough isn’t big enough

04 January 2021

It might seem a strange statement, but yes, you read that right – there are certain operating conditions where servo motors that should be big enough for an application are actually too small!

That is, too small in terms of their power rating, which for most applications is a perfectly acceptable way of selecting the right size motor. But not all.

For example, small, precision pumping applications, such as dosing ingredients in the food industry, would typically use an induction motor and inverter. More often than not, the pumps would be operating at a fixed speed and the motor-inverter combination would be selected on that basis.

Read the full article in the January issue of DPA

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