Editing Electric power transmission (section)

=== Grids for railways ===
{{Main|Traction power network}}

In some countries where [[electric locomotive]]s or [[electric multiple unit]]s run on low frequency AC power, separate single phase [[traction power network]]s are operated by the railways. Prime examples are countries such as Austria, Germany and Switzerland that utilize AC technology based on 16&nbsp;<sup>2</sup>''/''<sub>3</sub>&nbsp;Hz. Norway and Sweden also use this frequency but use conversion from the 50&nbsp;Hz public supply; Sweden has a 16&nbsp;<sup>2</sup>''/''<sub>3</sub>&nbsp;Hz traction grid but only for part of the system.