I live at an apartment complex and I was just returning from work when the entire complex went completely dark. All 12 buildings went offline at the same time, along with the outside lights and the covered parking lights. Since each building has its own transformer, shouldn't they be independent of the others? Why did all 12 buildings and the outside lighting go out together? Are they all on one line or something?
If you look around the whole community was without power, they had a problem at the substation which feeds all transformers in that community.
Failure of feeding line from the station. The transformers are independent.
Are they all on one line or something? Yes. All the transformers likely get power from the same seller. If the transformer are the leaves of a tree then a branch supporting all of them was cut or damaged.
on my logical skills , u r going to shut off all power at a same time , so this will create some hurdle in flowing of power, which shut off all the breakers of 12 building, So u have to close all power of building step by step or alternatively as 1-4 , 2-5 , 3-6, 7-10 , 8-11 , 9-12
The transformers get their power from somewhere: in the case of your complex, probably from the same utility feed. In a typical U.S. distribution grid, the power on the wooden poles going down the street might be at about 13,000 Volts. This is stepped down to 240 - 120 Volt service at the final transformers.
