>>13546192>Also, these transformers do what exactly?uh, transform voltage.
quick run down.
long distance power is almost always high-voltage AC for the following reasons:
1) current flowing in metals causes resistive heating
2) AC currents are mostly confined to near the surface of conducts (aka skin effect, due to resistive losses inside the conductor)
3) power = voltage * current^2
taken together, to transmit some power, you want your voltage to be as high as possible to minimize resistive losses
however, high voltage is dangerous and can't be used in things like home appliances. transformers are used to step voltages down to usable levels. your HV lines will go to a substation, and the substation will distribute power to local sinks. pad mounted transformers further step down the voltage. it's not unusual to see all of these components near each other
