Добавить в закладки
Наш форум
Правила Litmy.ru
Мы в Вконтакте
Подписка на RSS
Для правообладателей
Поиск книг:
Разделы сайта
Авторизация
Регистрация



Реклама



Название: The Pictorial History of Electric Locomotives
Автор: F. J. G. Haut
Издательство: A.S. Barnes and Company
ISBN: 049807644X
Год: 1970
Формат: PDF
Страниц: 230
Для сайта: litmy.ru
Размер: 51,0 МБ
Язык: Английский

Electric locomotives and railways started very modestly in about 1880 and developed very slowly where steam traction was at the limit of its abilities—as on underground lines and on severe gradients of mountain railways. As the electrical industry developed it produced better machinery, higher voltages and bigger currents, especially in countries without native coal resources, and railway electrification seemed an attractive proposition. Extensive tests proved that ideas could be made to work and the railway electrification schemes of the Simplon, Gotthard and others were a great success. Later, it was seen that electric locomotives were not only cleaner and often cheaper to run than coal-fired steam locomotives, but that in some countries they relied on a cheap and limitless power source.


Автор: Indulis 23-05-2019, 07:43 | Напечатать
 
Уважаемый посетитель, Вы зашли на сайт как незарегистрированный пользователь.




 Litmy.ru  ©2020-2023     При использовании материалов библиотеки обязательна обратная активная ссылка    Политика конфиденциальности