44.Power Supply Symbol AutoCAD Blocks

voltage regulator
protective conductor
power source (us)
rectifier
generator dc
generator ac
power source
dc voltage
dc voltage battery
ac voltage
ac voltage hf
ground

I also suggest downloading Electric Symbols.

File format: .DWG
Size: 32KB
Source: dwgshare.com
AutoCAD platform 2018 and later versions. For downloading files there is no need to go through the registration process