After generating electricity in the sources. It then flows through large wire connected to step-up transformer and it will raises the voltage up to 756 soso it can travel longer and then it will travel through transmission power line going to the Susbation and it will lover it voltage by step down transmission between 13 to 2 and then it will travel to distribution power to another distribution power where it lowered by the pole transformer to 240 to 120 volts and then it will flow to your service box hence your electricity is a secondary distribution by pole transformer
