Electro-diesel locomotive
An electro-diesel locomotive is a type of locomotive that can be powered either from an electricity supply or by using the onboard diesel engine. For the most part, these locomotives are built to serve regional, niche markets with a very specific purpose.
OPE1A [ru; uk] industrial electro-diesel locomotive for quarry railways with primary electric locomotive and two diesel B–units
British Rail Class 73, no. E6013 (73107) at Rowsley South, on the Peak Railway on 17 April 2003. This locomotive was on loan from Fragonset Railways, and has since returned to main-line service with RT Rail.
DM30AC 501 primarily diesel locomotive operating in electric locomotive mode from a third rail at New Hyde Park, USA
Stadler Euro Dual 2159, no 219, at Dresden railway station, Germany
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, electric multiple units, trolleybuses or trams. The generic term used by the International Union of Railways for the technology is overhead line. It is known variously as overhead catenary, overhead contact line (OCL), overhead contact system (OCS), overhead equipment (OHE), overhead line equipment, overhead lines (OHL), overhead wiring (OHW), traction wire, and trolley wire.
Overhead lines
Lineworkers on a maintenance of way vehicle repairing overhead lines (Poland)
Overhead over a switch in Toronto: Two runners for pantographs flank the trolley pole frog.
A switch in parallel overhead lines