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Why Does The Servo Motor Quotes With Newton Meter Instead Of Kilowatt


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Normally the rating of all kind of other motors whether AC or DC quote in kilowatts but with Servo motor, its rating doesn’t quote, just torque expressed in Newton meter (name plate of a servo motor is attached for reference). What is the technical reason behind it? For example, how do I convert 41.5 Newton meter torque of a servo motor into kilowatts?


"Don't assume any thing, always check/ask and clear yourself".

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A servo motor is designed to operate at different speed and, like an induction motor, it produces the same max torque at different speeds.


The relationship between KW and torque, is that KW = speed x torque.


This is why when we consider aan induction motor with a VFD, we say that the KW rating reduces with speed below rated speed.

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