List of railway electrification systems | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-14

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/List_of_railway_electrification_systems


00:00:25 1 Key to the tables below
00:01:22 2 Systems using standard voltages
00:01:44 2.1 Overhead systems
00:01:53 2.1.1 600 V DC
00:02:10 2.1.2 750 V DC
00:02:24 2.1.3 1,200 V DC
00:02:35 2.1.4 1,500 V DC
00:02:45 2.1.5 3 kV DC
00:02:54 2.1.6 span15 kV
00:03:02 2.1.7 span25 kV
00:03:13 2.1.8 span25 kV
00:03:45 2.2 Conductor rail systems
00:03:54 2.2.1 600 V DC conductor
00:04:11 2.2.2 750 V DC conductor
00:04:34 2.2.2.1 Bottom contact
00:04:42 2.2.2.2 Side contact
00:04:50 2.2.2.3 Top contact
00:04:57 2.2.2.4 Mixed
00:05:05 2.2.3 1200 V DC conductor
00:05:20 2.2.3.1 Side contact
00:05:28 3 Systems using non-standard voltages
00:05:39 3.1 Overhead systems
00:05:48 3.1.1 DC voltage
00:05:56 3.1.2 AC voltage
00:06:05 3.1.3 Three-phase AC voltage
00:06:14 3.1.3.1 Two wires
00:06:22 3.1.3.2 Three wires
00:06:30 3.2 Conductor rail systems (all DC voltage)
00:06:49 3.2.1 Top contact systems
00:06:58 3.2.2 Side contact systems
00:07:07 3.2.3 Bottom contact systems
00:07:16 4 Special or unusual types
00:07:26 4.1 DC, plough collection from conductors in conduit below track
00:07:57 4.2 DC, one ground-level conductor
00:08:23 4.3 DC, two-wire
00:09:06 4.4 DC, power from running rails
00:09:32 4.5 DC, four-rail
00:09:42 5 See also



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SUMMARY
=======
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.