I assume we are talking of just the network, so our start point has to be the switchgear from the generator switchboard to the network.
You will have various steps up to line level, in UK this means getting it up all the way up to 400KV.
Some parts of our network operate at lower voltages, such as 132KV and then on down to lower levels.
It may depend upon lots of things because there may also be reactor correction devices that look similar to transformers, these are in place to set up various safe operating conditions to prevent cascade shutdowns or limit short circuit currents.
Now that I think about it, you are probably better off starting at your end, the consumer and work your way backwards to the highest transmission line voltage.
Now if you are in the US it may well be different, you may have local utility which has generators feeding a switchboard at something like 66KV which also has a supply coming in the other end from somewhere else that was transformed down to 66KV from higher voltage transmission lines.
You should be able to google up some sort of very basic diagram like this
This is extremely simplified, at each voltage level change there will be some sort of switchboard which will have various feeders - especially when you start getting to the ‘lower’ voltages such as33KV and 11KV where you might well get lots of small infill generation such as windfarms, smaller CHP stations etc