Question

Given a 3-phase system has a line current of 150 amperes and a line voltage of 208V. Determine the total volt-ampere load for the above.

a.18,000
b.31,200
c.54,040
d.93,600

Answer 1

The total volt-ampere load for the 3-phase system is 36,720 VA.

Step-by-step explanation:

In a 3-phase system, the total volt-ampere load is equal to the square root of 3 times the line current multiplied by the line voltage. So, for this system, the total volt-ampere load will be:

Total volt-ampere load = √3 × line current × line voltage

= √3 × 150 A × 208 V

= 36,720 VA

Therefore, the correct answer is c. 54,040.