1880 - In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.
A railway electrification system is a way of supplying electric power to electric locomotives and multiple units.
Such systems can be classified by:
- type of conductor (third rail or overhead wire)
- type of current:
- direct current (DC) or alternating current (AC)
- AC frequency
- single-phase or three-phase AC (invented by Hungarian Kálmán Kandó)