Railway electrification using alternating current (AC) at 15 kilovolts (kV) and 16.7 hertz (Hz) are used on transport railways in Germany, Austria, Switzerland, Sweden, and Norway.
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25 kV AC at 60 HzIn countries where 60 Hz is the normal grid power frequency, 25 kV at 60 Hz is used for the railway electrification.
Railway electrification using alternating current (AC) at 15 kilovolts (kV) and 16.7 hertz (Hz) are used on transport railways in Germany, Austria, Switzerland, Sweden, and Norway.
Electric trains generally draw power from AC overhead lines. Some DC lines do exist, but they are getting replaced by AC lines. Motors used (traction motors) are generally DC motors.
Historically, the 110 V battery located in the main locomotive was the source of dc power for most electrical rail applications. This meant providing light to the carriages required running cables along the full train length.