Frey, Sheilah (2012) Railway electrification systems & engineering. White Word Publications, Delhi, India. ISBN 978-81-323-4395-0
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Abstract
A railway electrification system supplies electrical energy to railway locomotives and multiple units so that they can operate without having an on-board prime mover. There are several different electrification systems in use throughout the world. Railway electrification has many advantages but requires significant capital expenditure for installation. The main advantage of electric traction is a higher power-to-weight ratio than forms of traction such as diesel or steam that generate power on board. Electricity enables faster acceleration and higher tractive effort on steep gradients. On locomotives equipped with regenerative brakes, descending gradients require very little use of air brakes as the locomotive's traction motors become generators sending current back into the supply system and/or on-board resistors, which convert the excess energy to heat. Other advantages include the lack of exhaust fumes at point of use, less noise and lower maintenance requirements of the traction units. Given sufficient traffic density, electric trains produce fewer carbon emissions than diesel trains, especially in countries where electricity comes primarily from non-fossil sources.
| Item Type: | Book |
|---|---|
| Subjects: | T Technology > TF Railroad engineering and operation |
| Divisions: | Electronic Books |
| Depositing User: | Practical Student 02 |
| Date Deposited: | 01 Mar 2022 01:43 |
| Last Modified: | 26 Jul 2022 06:24 |
| URI: | http://odlsystem2.utm.my/id/eprint/2926 |
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