• Is this 10 Hp, 3-phase motor overloaded?
– Voltages = 455, 458, and 461 volts
– Currents = 14.1, 14.0 and 13.9 amps
– P.f. = 82%
• Watts = Volts
avg X Ampsavg X p.f. X 1.74
Watts = 458v X 14a X 0.82 X 1.74 = 9148.6 Watts
9148.6 Watts / 746 Watts/Hp = 12.26 Hp
• Is the motor overloaded?
http://www.cyberphysics.co.uk/topics/electricity/electric_menu.html
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