List of current systems for electric rail traction
This is a list of the power supply systems that are, or have been, used for tramway and railway electrification systems.
Note that the voltages are nominal and vary depending on load and distance from the substation.
Many modern trams and trains use on-board solid-state electronics to convert these supplies to run three-phase AC induction motors.
Key to the tables below
- DC = direct current
- xx Hz = frequency in hertz (alternating current (AC))
- AC supplies are single-phase, except where marked three-phase
- AC supplies are single-phase, except where marked three-phase
- overhead line or
- conductor rail, usually a third rail to one side of the running rails
- Conductor rail can be:
- top contact: oldest, least safe, affected by ice, snow and leaves
- side contact: newer, safer, less affected by ice, snow and leaves
- bottom contact: newer, safer, least affected by ice, snow and leaves
- Conductor rail can be:
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/List_of_current_systems_for_electric_rail_traction
VDC
VDC is a three-letter abbreviation with multiple meanings:
In technology:
Military
Other:
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/VDC
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