Three-phase power 1

Identify the correct order of quantity symbols for Reactive Power, Apparent Power and Active Power:

• S P Q

• P Q S

• Q S P

• Q P S

Identify the correct order of unit abbreviations for the quantity symbols S, Q and P:

• VAr W VA

• VA VAr W

• W VA VAr

• W VAr VA

In the power triangle, select the correct quantity ratio for λ:

• S/P

• Q/S

• P/Q

• P/S

In a three-phase load, if the line voltage is 400V, the current is 3.753A and the phase angle is 60°, what is the reactive power?

• 2600 VAr

• 2252 VAr

• 1300 VAr

• 500 VAr

Select a valid value of power factor:

• -0.2

• 1.2

• -1.0

• 0.8