Merch, anyone? okieprint.com/SPR/shop/home

@sonnypruitt6639

11 ай бұрын

So why wouldn't this diesel-electric configuration work with automobiles?

@ismaelangula6705

9 ай бұрын

​@@sonnypruitt6639yyhjjjyhuj

@clozmo2171

7 ай бұрын

​@@sonnypruitt6639 what? 😂

Finally! Plain english explanation on how dynamic brakes work. Now I understand after all these years. Thanks!

There is Plenty to Learn in School growing up but you can Learn a Lot more on this Channel. Your Topics aren’t covered on other Railfan Channels. Thanks! 👍🙏

@Southern_Plains_Railfan

Жыл бұрын

You’re very welcome! I’m glad you find this channel unique.

We will miss KCS 🫡

@Southern_Plains_Railfan

Жыл бұрын

Agreed!

@Goldenfredbear000

3 ай бұрын

@@RailsOfIllinoisWTH

I love that you used a picture of a Utah Railway Alco. My grandpa used to be a mechanic for them.

@Southern_Plains_Railfan

Жыл бұрын

That's pretty cool!

When I worked for NREC in the Silvis, Illinois shop, 99% of he locos had EMD engines. We also had engines out of barges and ships. The smallest I saw was 6 cylinders, while the largest I saw was 20 cylinders, in displacements from, I believe 575, 645, and 710 cubic inches per cylinder. Most were 645 cubes and 16 cylinders.

I've been a train person my whole life and I appreciate these videos. Also take a look at video on Animagraffs on how a diesel-electric locomotive works.

LOL @ 2:01, Turboencabulator is listed there!!

As someone who fixes locomotives for a living, this video is very simplistic, stripped down. But it's not wrong either. 👍

Cool! I love learning from you!

@Southern_Plains_Railfan

Жыл бұрын

Thank you so much!

Mate, i LOVED this video. If I ever left school again, I'd be a Freight Train Engineer. Dunno quite how that would work coz I live in leafy Oxfordshire, England.

0:39 thats the CFLA VL class great to see an australian locomotive here

Fantastic video, I went in with very basic knowledge and came out with a much better understanding of DEs, very cool

Excellent video and content really appreciated learning more about diesel trains. I know I love the way they sound! Cheers buddy

@Southern_Plains_Railfan

10 ай бұрын

Thank you! I’m glad you enjoyed!

Great video! Nice to see you put in a VL class engine. Love those weird looking diesels.

@Southern_Plains_Railfan

Жыл бұрын

Thank you!

SD45s had 20 cylinder engines, not 10. I'm guessing that was an "oops" on your part, only counting one bank of cylinders. Otherwise, good video.

@Southern_Plains_Railfan

Жыл бұрын

Yes that was an oops. I meant to say V20. Thank you, I’m glad you enjoyed.

@ryandavis7593

Жыл бұрын

@@Southern_Plains_Railfan As an EMD composite mechanic I heard this and had to rewind to be sure I didn’t hear that wrong. The EMD 710 V20 is in fact the largest of its kind. The EMD 645E3 V20 is the largest by cylinders in a locomotive. Not counting the twin engine British Deltecs. We are moving ahead on technical videos at the railroad I work for. Soon videos will be up at TNW Corporation and I am looking forward to these. Greetings from the high plains of Texas. P.S. The field in the traction motor must be excited, powered, for the dynamic brakes to work. Control of the amount of dynamic braking is done through the amount of excitation to the motor field windings. The armature windings then generate power to go to the dynamic brake resistors. These are NOT permanent magnet motors. Dynamic braking on EMD dc power is as follows. Reverser in a direction. Throttle at zero notch. Dynamic brake handle to braking. Dynamic brake contactors pick up. After time delay times out braking can occur. The contactors disconnect the fields from traction motors and connect the commentators to the resistor grids. The prime mover goes into notch six. The dynamic brake handle is moved for desired braking. Excitation is sent to main generator to power the field windings. Power is generated and sent to the grids where it is dissipated as heat. I would love to help with your work in giving you more technical information. Please find me on IG. RD.

@inothome

Жыл бұрын

Came to say the same thing.... Here's one in a stationary application. kzread.info/dash/bejne/mnqKrJuFmMvTYKw.html

I love watching your videos enjoy CP and KCS while you can

@Southern_Plains_Railfan

Жыл бұрын

Thank you! Yes, I'm happy to say that I was with CP and KCS until the very end.

Thanks for a really great presentation on how diesel electric locomotives work!

@Southern_Plains_Railfan

Жыл бұрын

You’re welcome!

Awesome video!

@Southern_Plains_Railfan

Жыл бұрын

Thank you!

Nice video our friend! (Dave).

@Southern_Plains_Railfan

Жыл бұрын

Thanks!

I would have thought that most diesel-electrics have two ish generators so that the circuit between the motors and the rest of the train can remain isolated?

@Southern_Plains_Railfan

10 ай бұрын

Well, they do, but not in the way you might think. In modern locomotives, the giant alt/gen has two sets of windings; one to power the traction motors, and one to power all the other systems. The alt/gen’s winding are woven in such a way that there’s two alt/gen’s in one, being excited by only a single armature. I would have put this in the video, but I didn’t know about it until recently.

Love this 🙏👍👍👍👍👍

@Southern_Plains_Railfan

Жыл бұрын

Thank you!

Diesel Electric is the Most Efficient Motor used for Transportation purposes. Just think how many Tractor Trailer trucks are taken off Roads with a Stack Train.🤔👍

@Southern_Plains_Railfan

Жыл бұрын

For sure!

@russcudney1469

Жыл бұрын

Have yet to see a gas station or grocery store with a rail siding, so trucks will be around for a while. Both modes work together for that very reason. OTR trucks are for short to mid length haul because it takes too long by rail(truck to rail yard at origin, on rail, to hump yard, truck to destination).

This is very useful. I'm going to share this with my girlfriend. I'm trying to help her understand how trains work.

Farewell KCS 🫡

This is exactly what I need to see when I need to go to sleep

@420sakura1

4 ай бұрын

The channel name should tell you that.

@matthewkendrick8280

4 ай бұрын

@@420sakura1 I don’t understand

Each powered truck or bogie is designated A for 1, B for 2, C for 3, and D for 4 powered axles; therefore your A1+1A has 2 trucks with one powered axle and one idler axle + one idler axle and one powered axle. The A1A + A1A is a 3-axle truck with 2 powered axles and the middle axle is an idler. Most diesel electrics are either B+B or C+C as the only D+Ds of the UP are no longer in service. I am including this comment as your description seemed confusing to me. It is more complicated, but there is an additional step that you did not cover, which is transition. Transition is having all of the traction motors in series changing to series-parallel to all parallel when starting. It may be the other way of parallel to series-parallel to all series when starting as I have forgotten. When the traction motors are all connected together they have the most torque but when changed (transition) to the other way, they have the most power. When starting you want the most torque then change to more power which is electrically changing gears. Transition occurs automatically in modern locomotives instead of having to close the throttle, change the circuit then reapply power with the throttle. Air is always being blown in and around traction motors to help cool them and help keep trash out of them.

@severinbaumann7086

10 ай бұрын

But when you starting the train Diesel-electric you are blowing electricity through the standing electricmotors. And if the Wight of the whole train is to much. You are burning the Rotors and Stator of the Electric motor. Compared to the other kinds of Drivetrains coming up in the following video (Part 2 and 3) This setup is limited starting traction. What do you guys think? :)

„Diesel locomotives, they power the world“ is as true of a statement than „The US rail network is the best in the world“💀

@philipnasadowski1060

11 ай бұрын

Plus, no mention of AC inverter diesel locomotives. Fun fact - the vast majority of passengers on US railroads are on fully electric trains…

Why doesn’t the dynamic braking get used for charging surplus batteries. Trains sometimes struggle on grades, a booster battery would help with short bursts of extra volts X amps = power. I’m a mechanical engineer so this maybe off by a few decimal places. I like the fact that the locomotives still use piston engine technology. 0:40 The reason is efficiency. Thermal dynamic efficiency is Temperature of in coming air / Temperature of exhaust gases. Most piston engines run 30% to 60%. 60% is rare but it’s possible. Gas turbines are usually less than 10%. Turbines advantage are high up to weight ratios. The exhaust on the experimental Chrysler gas turbine car could burn your pant legs if you walked behind the car and it would start fires when driven through fields of dry grass. If weight and space (package) are not restrictive the system that the locomotives use and one of the newer Honda hybrids is probably the most practical and reasonable way to propel over the road vehicles until it can be shown that a full no fossil fuel system, including generation and distribution, is invented that gives the range and $/mile is invented this mad rush to Tesla’s isn’t warranted. Owners shouldn’t feel comfortable that they are doing any favors to the environment. Not yet. Not for quite a while our infrastructure catches up to demand. All public domain systems are always one day from disaster, i doubt that the electrical grid can meet the new demands in the time frame regulators advertise, but that’s just me. Remember our bridge systems about 7 or 8 years ago when a relatively small bridge in Minnesota collapsed and killed a few people? The whole bridge system of permitting, safety inspections and reporting were reviewed and changed. I don’t remember how many millions were allocated to bridge upgrades. It was a lot. Every little town with a river or creek and a bridge got a new bridge. The old ones were only 90 years old.

It is, of course, not the *fans* themselves which slow the loco in dynamic breaking mode; it is the resistive load banks which they *cool* which dissipate the current generated by those braking traction motors, which have to dissipate as many megawatts as the generators have to put in to accelerate the train. A small point in an otherwise fine lesson.

Cool video trilogy of the Diesel's. :) But when you starting the train Diesel-electric you are blowing electricity through the standing electricmotors. And if the Wight of the whole train is to much, you are burning the Rotors and Stator of the Electric motor.

Great video. Very well explained. Is it not possible to capture the electricity generated by the traction motors and store it in a battery? I imagine it is in new models, but not in these older types of trains.

@iandennis7836

11 ай бұрын

Exactly what I was thinking......

@monsterworks2947

10 ай бұрын

Me too. The batteries then can be used as backup power.

@mertvaran5733

10 ай бұрын

@@monsterworks2947or just power the traction motors when needed to discarge them making them ready for regen braking again with the batteries but I imagine cost and weight is a big issue since EV batteries already are very heavy and expensive and scaling that up for a freight train might be difficult.

@ntekniklaus3710

10 ай бұрын

or... have a third rail or something and put it on the grid. not the most feasible thing, but apparently i'm not the only one thats ever thought this same thing

@ntekniklaus3710

10 ай бұрын

@made-in-the80s i see the uses in storing energy when they have to head back up a grade. but really, why not stick some of it on the grid? if that engineers word was right an AC44 can put out 151KW max output, which should be at least multiple houses... right?

The main generator is attached to the rear or flywheel end of the engine, not the front.

Baby TeSla kingDom 😍💚 love 😍

Ah yes, the elusive Turboencabulator :)

@Southern_Plains_Railfan

10 ай бұрын

lol

I thought SD45's had V20 engines, or were you referring to the number of banks, since technically a 20-cylinder V-line engine actually has 10 "V's"

@Southern_Plains_Railfan

11 ай бұрын

Yes, I meant to say V20. That's my bad.

Gas go electric go train go Nyoom

As a farmer I've always wanted to try and make a tractor that uses a locomotive motor

@Southern_Plains_Railfan

Жыл бұрын

Lol, good luck! Those engines weigh like 30 thousand lbs. I tell you what though, you could pull as many grain carts or as big a plow as you want with a tractor like that! You’d also dominate pulling competitions!

@CheeseMiser

Жыл бұрын

@@Southern_Plains_Railfan yes

My man didn't dare touch upon the old pre-dash 2 series DC motors and their selector lever and electrical "transitions", that stuff gets complicated!

Alternate title: Man with strong American accent explains diesel locomotives

How much energy those generators produce?

SD 45 has massive V10? Are you thinking 10 cylinders on each bank? V20!!!

I'm assuming locomotive engineers have to fully understand how the locomotive works?

Sounds a lot like regenerative braking without the regeneration.

What about Amtrak's famous EMD F40PH/F40PHR locomotives????

I love Series-Hybrids. They are the best of both worlds. The instant torque & stealth of Electric, but the convenient, faster then charging batteries refueling of an engine, with fuel stations more common than plugil-in spots. The engine can also be kept at it's most powerful or most efficient RPM, and there's no wasteful, jerky transmission, or clutch or CVT to burn up. But I didn't know Diesel-Electric trains used resisters instead if Regenerative-Braking to charge traction batteries/ultra-capacitors. That's so wasteful. Yeah, your not wearing out traditional brakes, but you're still just throwing all that momentum energy away, converting it to heat. Just like how an old steam train had a space behind the engine loaded up with coal. There's no Diesel-Electric train with a huge battery car behind the the drive car? I remember hearing somewhere, that if tires on road, had the same rolling resistance as train wheel on rail, then an engine that could fit in your pocket, would be enough to move a car. So seeing how big a train engine is, really puts into perspective how much weight they move on rail. That, and the fact that it can take miles for them to stop.

I think today's Locomotives have alternator's not generator's for powering the traction motors

The turbochargers on these things are almost bigger than a freaking person! I still can't believe that..

What I love is fuel/electric works so awesome for train industry, and awesome also for submarines. But somehow they only automotive solution that seems to be allowed and accepted by our politicians pure electric and all the limitations of evs? Why are hybrids not being pushed more as an outstanding alternative to pure gasoline?

It’s a shame the dynamic braking energy can’t be reused, seems a hell of a waste.

Pity they can't use that generated energy to, say, charge batteries. Are their no modern ones that do?

emd sd 45 ia a 645 v 20

So all diesel trains are really electric, interesting 🤔

Every diesel locomotive.. except the Krauss Maffei and Alco hydraulics

Are you a mechanic

@Southern_Plains_Railfan

7 ай бұрын

Almost. I’m still going to school to be a diesel mechanic.

The world would be possible it would just be powered by oil powered steam trains

Wasting all that sweet, sweet braking energy to heat... should charge batteries with that power like a plug-in-hybrid car.

You lost me with the brakes.