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3-ph Induction Motor Nameplate information

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wael_sal

wael_sal

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Hi,
Regarding information listed on motor nameplate.
Referring to motor power, why there is a difference when you calculate power from listed current and voltage compared to listed rated power.
i.e P= sq(3) * V * I * PF * Eff.
how to mach all these values ?
Example nameplate is attached.

Regards
Wael
 

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The power factor (cos(theta) where theta is the angle between the voltage and the load current)
 

What I mean, is the power you get from Equation is different (much higher) from the power on the nameplate.

wael_sal said:
Hi,
Regarding information listed on motor nameplate.
Referring to motor power, why there is a difference when you calculate power from listed current and voltage compared to listed rated power.
i.e P= sq(3) * V * I * PF * Eff.
how to mach all these values ?
Example nameplate is attached.

Regards
Wael
Click to expand...
 

The reactive power is more than the real power. (VA vs Watt)
 

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