The complex power consumed by a constant – voltage load is given by (P1 + jQ1), Where, 1 kW ≤ P1 ≤ 1.5 kW and 0.5 kVAR ≤ Q1 ≤ 1 kVAR.
Before connecting shunt capacitor:
Maximum reactive power consumed by the load from the source.
Q1 = 1 kVAR.
After connecting shunt capacitor:
Maximum reactive power consumed by the capacitor-load combination from the source.
Q = 0.25 kVAR
Net reactive power supplied by the capacitor to the load is
Qc = Q1 - Q = 0.75 kVAR
Net reactive power supplied from source to load changed from 1 kVAR to 0.25 kVAR, remaining 0.75 kVAR is supplied by the shunt capacitor.
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