cabbagekid2
Member
Hello, another NEC Kaplan question...
The problem is asking for the full load current of the motor. Here are the specs: 3 phase, 100HP, 460V, 0.8 pf lagging, synchronous motor with normal torque characteristics.
Looking at 2008 NEC Table 430.250 I found 101A as the full load current listed. However, in the answer for this problem they multiply 101A by 125%. I know you are suppose to do this when sizing conductors for motors, but isn't 101A the Full Load current? And then 125% is just to size the conductor and not the Full load current?
Gah...only two more days!
Thanks!
The problem is asking for the full load current of the motor. Here are the specs: 3 phase, 100HP, 460V, 0.8 pf lagging, synchronous motor with normal torque characteristics.
Looking at 2008 NEC Table 430.250 I found 101A as the full load current listed. However, in the answer for this problem they multiply 101A by 125%. I know you are suppose to do this when sizing conductors for motors, but isn't 101A the Full Load current? And then 125% is just to size the conductor and not the Full load current?
Gah...only two more days!
Thanks!
