Question

A load of 300 KW with a power factor of 0.65 lagging has the power factor improved to 0.9 lagging by the addition of parallel capacitors what KVAR of capacitors does this require ?

Answer 1

To improve the power factor from 0.65 lagging to 0.9 lagging, parallel capacitors should be added to the circuit. KVAR of capacitors required can be calculated using the given load power and power factor values.

Step-by-step explanation:

To improve the power factor from 0.65 lagging to 0.9 lagging, parallel capacitors should be added to the circuit. Capacitors have a leading power factor, which can help offset the lagging power factor of the load. The KVAR (Kilovolt-Ampere Reactive) of capacitors required can be calculated using the formula:

KVAR = P * tan(acos(pf2) - acos(pf1))

where P is the load in KW, pf1 is the initial power factor, and pf2 is the final power factor. Substituting the given values, we can calculate the KVAR of capacitors required.