Power Flow Analysis of a 22/0.4kV Distribution Transformer Using ETAP Software Case Study: Al FAIROZ Residential Area in the Gaza City

This paper provides a power flow analysis of a distribution transformer feeding a residential area in the Gaza Strip using power system simulation package (ETAP) 12.6.0H. A 630-kVA pole mounted distribution transformer is equipped with an off-load tap changer OLTC is used to control and regulate its secondary voltage to rectify the voltage drop at the consumers' side. The study has been conducted using the actual loading conditions on the transformer and then balanced loading conditions are used. Results of the simulation are tabulated, analyzed and discussed.