I worked in a CCGT (combined cycle gas turbine) power station working with the maintenance team. It produces around 1,365 MW of electricity.
This is what it should look like after it's all been put back together and cleaned and in working order before it goes back into its place.
When the white rectangle turns yellow it means it is charged.
'O' is open and 'l' is closed.
The 'L' means long term, the 'S' means short Term, 'I' means instantaneous and 'G' means ground.
The bottom three rows are "live" and the top 3 rows are "dead.