A 3-phase voltage of 220 V is applied to a balanced, delta-connected, 3-phase, purely resistive load. Calculate the ratio of the reactive power to the active power.

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Power Triangle

F1 Vinanti Engineering 22.03.23 D5

The power factor is given by:

\(cosϕ={P\over S}\)

where, cosϕ = Power factor

P = Active power

Q = Reactive power

S = Apparent Power

Calculation

For purely resistive load, the value of Reactive power (Q) is zero because the resistor is an energy dissipating element, not energy storing element.

\({Q\over P}={0\over 1}=0\)

 

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