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Power Factor of 3IK15A-SW2 induction motor

Posted: Fri Aug 03, 2018 2:03 pm
by om_tech_support_AC
Q: How do I calculate the Power Factor (output power vs input power ratio) for the motor 3IK15A-SW2?

A: For 3IK15A-SW2 first the input power is calculated by multiplying the voltage 220 VAC by current 0.15 A resulting in 33 W.

Electric Power.JPG
Electric Power.JPG (9.26 KiB) Viewed 1291 times

The voltage and current specs for 3IK15A-SW2 can be found using the link below. ... 3ik15a-sw2

Then the output power is calculated using the equation:

Mechancial Power.JPG
Mechancial Power.JPG (10.71 KiB) Viewed 1291 times

That equation can be found in the technical references using the link below.
The torque for 3IK15A-SW2 is 0.1 N·m and rated speed is 1650 rpm for 3IK15A-SW2 . That results in an output power of 17.28 W.

To get the Power factor, divide the output power by the input power to get 0.52.

Power Factor.JPG
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