Question

3 Phase Apparent Power Equation (in terms of line voltage and current) :

A) Apparent power = √3 × Line voltage × Line current.
B) Apparent power = Line voltage × Line current.
C) Apparent power = Line voltage / Line current.
D) Apparent power = Line voltage^2 × Line current.

Answer 1

The correct equation for 3 phase apparent power is A) Apparent power = √3 × Line voltage × Line current.

Step-by-step explanation:

The correct option for the 3 phase apparent power equation (in terms of line voltage and current) is A) Apparent power = √3 × Line voltage × Line current.

Apparent power is the product of the line voltage, line current, and the square root of 3. This equation is used in three-phase power systems where the voltage and current are balanced and the load is purely resistive.

For example, if the line voltage is 100 V and the line current is 10 A, the apparent power can be calculated as: Apparent power = √3 × 100 V × 10 A = 173.2 VA.