Loading Condition

Lightly loaded condition

Normal loaded condition

Heavily loaded condition

Optimization Technique

Firefly

PSO

GRADE

Firefly

PSO

GRADE

Firefly

PSO

GRADE

Ploss(p.u)

0.19762

0.189052

0.185047

0.27863

0.249934

0.243697

1.30134

1.2899

1.284536