4 ms·
Trains require a HUGE engine, yet they relay their power via electrical linkage. This is actually more efficient than other systems, because it allows the engin
by ObviousScience 12y ago
Trains require a HUGE engine, yet they relay their power via electrical linkage. This is actually more efficient than other systems, because it allows the engine to run at its optimum power generation cycle, without worrying about converting RPM down to the appropriate amount via mechanical linkage.
An electrical linkage would be relatively straightforward to split in to 4 components.
- bdonlan 12y agoIt's still a lot of weight to carry around a high-power generator, large-gauge power cables (or heavy transformers and smaller-gauge cables), and four electric motors. This is less of a problem on a train, because the train only has to deal with the additional friction, and doesn't have to worry about generating more lift to make up for the increased weight.
- dredmorbius 12y agoBeing able to individually step wheels is also a big win -- if a given wheel starts to lose traction, it's much easier to cut electrical power than mechanical. Steel-wheel-on-steel-rail has fairly low static friction (which is why you find electrically-powered trains with many powered wheelsets, and virtually _all_ trains with track-sanding capabilities to increase traction).