I am a mechanic at a company that regularly rebuilds 9,000-15,000 HP 13,800 Volt motors. The bigger they get, the simpler they get. The difference is assembling them with cranes and massive hydrodynamic bearings.
@flomojo2u
2 жыл бұрын
What size is the wire in the windings? It always blows me away when you see motors running at many KV.
@LifeontheBellCurve
2 жыл бұрын
@@flomojo2u motors that big use rectangular wire that's insulated and stacked into the form of the core slot and insulated together into what we call a form coil. The wire size varries based on the need and required number of turns which is usually dictated by the speed and expected torque.
@stupidsnek
2 жыл бұрын
How can I get into that
@LifeontheBellCurve
2 жыл бұрын
@@stupidsnek you will need to be near someplace that values and has heavy industry. You will need to be near refineries, powerplants, mines, metal refiners and processors, chemical plants, and general manufacturing. There you will find shops that rebuild just about every motor, gearbox, hoist, or pump. You will need to have common sense, be able to learn quick, and be willing to do dirty, manual labor. Most places are willing to teach someone willing and able to learn. You have to be able to put yourself out there and talk to people older than yourself in a casual but respectful manner. Most importantly, you have to have a thick skin. Feelings and offense will only be cared about by someone carrying a clipboard or wearing a tie. There aren't many of us out there and we need our ranks replenished as many are retiring.
@LifeontheBellCurve
2 жыл бұрын
@@stupidsnek someplace you could start is checking out a company called IPS (Integrated Power Services). They have several facilities across the east and Midwestern United States. They are a big outfit and competitor to my company but they offer good benefits, free schooling, competitive pay. Fill out an application, make a phone call, and don't take no for an answer.
@paulkurilecz4209
2 жыл бұрын
I worked for a gas pipeline company that had several compressor stations that were powered by electric motors. These motors started at 2,000 hp and the largest had a nameplate capacity of 15,000 hp. The largest ones were tested for maximum continuous output which varied from about 17,500 hp to 18,000 hp. These motors and the compressor stations were built initially in the early 1950's and were expanded over the years.
@Hyperious_in_the_air
2 жыл бұрын
yup, this. I worked in one of the largest refineries on the west coast, and we used motors about as big as the NASA one to drive compressors for CH4 that'd move several million cubic feet per minute.
@paulmiller6277
2 жыл бұрын
What do you use a 18,000 hp compressor for?
@Hyperious_in_the_air
2 жыл бұрын
@@paulmiller6277 compression of byproduct ch4 to use in a hydrogen catalyst cracker. We take the hydrogen from the CH4 at several hundred psi and pump it back into the bottom of the cracking stack to break apart the longer lipid chain molecules down into gasoline and Diesel.
@ububububububububub1667
2 жыл бұрын
@@Hyperious_in_the_air cool!
@letsburn00
2 жыл бұрын
I work in Oil and Gas and we pretty regularly use 20MW helper motors. This is built on top of a 80MW gas turbines.
@Gurmannen
2 жыл бұрын
I work as an engineer with large AC motors for one of the companies mentioned in your video and although being somewhat clued in on the subject matter, I was nevertheless very entertained and certainly educated. Very good job on this video. Electric is the way of the future
@hollander133
2 жыл бұрын
I had the same feel when watching the video. And I'm a Field Service engineer for an electric motor/generator repair company.
@allgrainbrewer10
2 жыл бұрын
It is, but where do you get the electricity from?
@hollander133
2 жыл бұрын
@@allgrainbrewer10 Usually generators producing the electrcity are bigger than the motors. I know that a normal sized coal power plant is about 1000 kW.
@billynomates920
2 жыл бұрын
it is a good video!
@sleepyrasta420
2 жыл бұрын
No it isn't not for cars anyway. It's hydrogen. You can never charge a battery as fast as you can fill up a fuel tank.
@holy3979
2 жыл бұрын
One of the really nice things about electric motors is how easy it is to scale them up or down compared to internal combustion engines.
@ronbradshaw7404
2 жыл бұрын
Yeah and the moving parts count, generaly totals to: ONE... :)
@samuellourenco1050
2 жыл бұрын
The only "impediment" is that, the smaller the motor, the more inefficient it is. Conversely, large motors can reach efficiencies of 90% or more.
@samsonsoturian6013
2 жыл бұрын
I never thought of that, but combustion speed would be a problem with a 10000 litre cylinder....
@Speeder84XL
2 жыл бұрын
@@samuellourenco1050 It probably has more to do with how most motors are used and which type of motor. Small motors are often used at very heavy load compared to their size, because even if the efficiency drops, they don't overheat (due to the total input power to them being so low). But the bigger motors running at higher power, need to run at lower load relative to their size (where they are more efficient) to avoid overheating. Small brushed DC motors are also quite inefficient even at low loads, because the rotor usually have relatively high internal friction. But small brushless ones, can probably be quite good.
@Meatpipeify
2 жыл бұрын
Great video. I used to work in nuclear power, and I thought the 4,000 hp reactor coolant pump motors were huge. Some impressive stuff here!
@Capthrax1
2 жыл бұрын
4,000 hp!? is that for one reactor? how much rated output is the reactor1gw?
@jamallabarge2665
2 жыл бұрын
You probably had multiple pumps?
@Genius_at_Work
2 жыл бұрын
@@jamallabarge2665 Can't speak for Nuclear Reactors, but on Ships, we always have one Pump more than we need. I worked on Ships with three Cooling Water Pumps, so each of them has 50% of the required Power, and on Ships with only two Pumps so one Pump alone could provide the required Cooling Water Flow. I'd guess that Nuclear Reactors have at least double or perhaps even triple Redundancy, aka two or even three Backup Pumps.
@joshuaholmes468
Жыл бұрын
What was the type of plant you ran, the ones in my ain’t that big
@md4luckycharms
Жыл бұрын
@@Capthrax1 in our local plant there are 7 per reactor, rated output around 800mw
@BBBrasil
2 жыл бұрын
5:42 😂😂 Kilogram, Horse Power, pound-feet, what a carnival of measurement systems!
@Silvertarian
Жыл бұрын
"The weight savings is the big advantage here." Until you need a 1 ton battery to power it.
@DaiElsan
2 жыл бұрын
As an apprentice many years ago, I had the privilege of a walk around of the Blooming Mill Motor at British Steel Corporation Ebbw Vale. I could walk through the stator on tip toes with my arms held out straight above my head and still touch it. It was a 220V DC motor. It had to reach maximum torque in 4 or 5 revolutions and stop dead then reverse. It had a 70 ton flywheel on the shaft. Current was converted by 6 Frankenstein size Mercury arc rectifiers which were amazing to see in operation, each being over 6 feet tall. I have literature somewhere, but from memory the motor was rated at 75,000hp. We had our own generating station, to help reduce load on the grid when it was in operation. Consuming MW/week. I've never seen a bigger motor since.
@KR4FTW3RK
2 жыл бұрын
The US "standard type" battleships of WW1 vintage used turbo-electric propulsion. In this case steam turbines provided the power to spin generators and the electricity was in turn used to drive electric motors which turned the propellers. This was done to compartmentalize the ships and avoid having long drive shafts commonly needed when connecting the turbines to the propellers. The downside being added complexity and weight when compared to direct turbine drive or geared turbines. The "standards" only had to reach around 20 knots.
@michaelmoorrees3585
2 жыл бұрын
21 knots. Also around 25,000 to 30,000 HP. I wished one of those were preserved as museum ship. The impressive part is that they were built during WW1, with the Colorados, the last ones, built in the early 20's while the Washington Naval treaty was being negotiated.
@TheShrike616
2 жыл бұрын
Electric engines are idd far from novel. As it was the first wheel powered car to reach 100 km/h was an electrical powered one... in 1900.
@dundonrl
2 жыл бұрын
So did the Lexington and Saratoga.
@awesomeferret
2 жыл бұрын
This is just like the old ferries in Washington State. "Diesel electric" in this context simply means "diesel generator powering electric motors". Those ferries are currently in the very early stages of being replaced, but even the oldest ones are diesel electric.
@Digi20
2 жыл бұрын
diesel electric is also often used in high torque applications like trains and heavy mining equipment. it is much easier and lighter to bolt an electric motor more or less directly to the drive shaft and feed it with power generated by a combustion engine, than building a gigantic heavy complex multi gear transmission for that engine. also, the engine can more often run in its optimal work load and rotation speed.
@volofly2011
2 жыл бұрын
I know the folks at NASA's NTF well, tested there a number of times but I never realized that it had the biggest motor in the world generating the wind for me. This info was probably in a facility briefing but went over my head at the time. As a side note, though I've recently retired, my team was / is collaborating with NASA to test another type of "motor" for remotely actuated control surfaces... shape memory alloy (SMA) torque tubes of nickel titanium hafnium (NiTiHf). Super small, super high torque. They need to be to fit into these small models and work at such high loads.
@Shrek_Has_Covid19
2 жыл бұрын
NASA NFT
@metallicamadsam
2 жыл бұрын
you should collab with curious droid about your experiences and the future of such technologies
@volofly2011
2 жыл бұрын
@_____ Yes, something like that. Solid state, when heated the material goes through an internal crystalline aliment change that is reversible when cooled and can be "trained" to repeatedly change back and forth with temperature change. It's very cool stuff. This material can also be designed to change shape with ambient temperature changes and not just torque tubes, all kinds of shapes and shape changes are possible.
@volofly2011
2 жыл бұрын
@@Shrek_Has_Covid19 NASA NTF or National Transonic Facility, as in, the cyrogenic research wind tunnel at NASA Langley in Hampton, VA.
@volofly2011
2 жыл бұрын
@@metallicamadsam Hmm, yes well, only on the public stuff of course, but I'm open to that.
@oysteinrb
2 жыл бұрын
I remember when working in the mining technology industry back in the 2010s, we used ring motors rated at up to something like 25 MW, typically produced by Siemens. These were used in grinding mill applications where dual pinion drive was more expensive or not at all available. The grinding mill itself basically worked as a hollow shaft in the motor assembly, and was around 8-10 meters in diameter. Now i work in the hydropower industry, and over here we have a couple of 160 MW pump turbines, which is pretty insane. Electric motors are awesome.
@milolouis
2 жыл бұрын
Brilliant as usual Mr Shillito. Who doesn't love a big motor, and the sound!
@jamjardj1974
2 жыл бұрын
Not as loud as that amazing shirt.
@richardconway6425
2 жыл бұрын
Yeah, I was gonna say, what about that shirt!!
@lindaseel9986
Жыл бұрын
That shirt is so loud, it's calling Austin Powers. 😄😄
@DickCheneyXX
2 жыл бұрын
The most powerful motors I know of that aren't purely used as alternators are in the transport grid industry. We have two hydrogen-cooled 200MVA synchronous condenser at one major transport station, that's about about 268,000HP. They are asynchronous motors used to do variable power factor correction.
@DickCheneyXX
2 жыл бұрын
@@paddor The power grid.
@larslindgren3846
2 жыл бұрын
They are not really motors, they don't drive anything mechanical. So if you don't count generators you should not count these either. They are just generators for reaktiv power.
@syx3s
2 жыл бұрын
that is VERY interesting. i knew they existed but i didn't know what they are called. not really a motor or a generator in common parlance but i'd be interested in watching an entire video just on what they are and what they do.
@syx3s
2 жыл бұрын
@@larslindgren3846 they are connected directly into the power grid ---> directly into all of the rotating generators in that grid. they provide a mechanical balance to keep the grid on speed. giant motors that are powerful enough to keep the entire grid from lagging or over speeding.
@syx3s
2 жыл бұрын
@@larslindgren3846 apologies, i'm sure you know what they are. i just get annoyed when i hear that there is somehow a difference between a generator and a motor. they can be designed to do both at will very efficiently. something that can speed up the entire electrical grid sounds like a motor to me.
@oisiaa
2 жыл бұрын
One reason why electric aviation isn't likely anytime soon....it would take two x 100,000 hp electric motor to replace the jet engines on a Boeing 777.
@mikester1290
2 жыл бұрын
And the batteries are just as heavy when you land as when you took off.
@oisiaa
2 жыл бұрын
@@mikester1290 Yep. A big jet like a 777 typically can be nearly 50% fuel by weight at takeoff and 5% fuel by weight at landing. Planes get much more efficient as they burn off fuel weight. Not to mention you need to lug around much heavier landing gear to deal with the very heavy landings.
@oisiaa
2 жыл бұрын
@@mikester1290 I think with the very best technology we have today, you MIGHT be able to make a 737 sized aircraft that could fly for maybe 45 minutes.
@44R0Ndin
2 жыл бұрын
IMO the best bet is to keep jet airliners as they are and switch to synthetic fuel created by carbon-capture of CO2 from the atmosphere and/or combustion power plant exhausts. Might work better if we switch to using liquid methane for the fuel in that application tho, as it's a lot easier to synthesize methane than it is to do jet fuel (but you can use methane as the feedstock to synthesize jet fuel, the problem is more one of energy input than of possibility).
@oisiaa
2 жыл бұрын
@@44R0Ndin I agree. Liquid methane requires cryogenic temperatures or high pressure. Biofuel or some other synthetic is almost certainly the way to go....something carbon neutral.
@boyo2012
2 жыл бұрын
I am SO thrilled to see another Curious Droid video! I've always loved your content and presentation style...I could listen to your videos all day! Fascinating and educational. Well done!
@stevenclark7900
2 жыл бұрын
Agreed, Paul is a super presenter.
@Alexander_Sannikov
2 жыл бұрын
i think you should have talked more on those generators/motors used in water dams to pump water uphill. even though they're not dedicated motors, they're still incredibly powerful and it'd be interesting to see what they look like.
@awesomeferret
2 жыл бұрын
If you want videos like that, check OUT Practical Engineering. Yeah, I don't like promoting channels that big, but still, it's very relevant to your wish.
@daemoncan2364
2 жыл бұрын
The shirt is the world's most powerful eye magnet. :)
@Chriss120
2 жыл бұрын
kinda sad you excluded the pumped hydro pump/generator combos. in my mind they would qualify.
@flaplaya
2 жыл бұрын
Electric motors have always been a passion. Very well done research here.. That 110 MW motor for NASA is just unbelievable. Draws 1/8th the output of a nuclear generation station to run... Crazy!
@JamBar1873
2 жыл бұрын
That shirt is a belter Paul, real power!!
@cyankirkpatrick5194
2 жыл бұрын
What with the shirt? It's his style
@DeathValleyDazed
2 жыл бұрын
Love it when Paul totally geeks out. I learned much from this video. Thanks!
@frequentlycynical642
Жыл бұрын
The California Water Project has 10,000 HP motors to pump the aqueduct water up and out of the Central Valley to head farther south. I was amazed that there are motors significantly larger!
@kalleklp7291
2 жыл бұрын
It never fails to amaze me what engineering is capable of nowadays. Not that the big players aren't impressive enough but the small ones certainly are! An engine no bigger than it could fit in a handbag that delivers 300 Hp is what I call impressive engineering. I bet we will see even smaller ones in the future with far more power and amazing torque numbers.
@TucsonDude
2 жыл бұрын
Dispite their relatively small size, motors are not a standalone component in a drivetrain. They all still require a generator (either onboard or at a power station). So, you'll have to add a few more handbags to carry it all in.
@magicalpencil
2 жыл бұрын
I think the mining industry uses some pretty big motors for fans and whatnot. The biggest I've seen is 5MW, it was direct-online starting so soiled underwear for anyone nearby when it starts up
@CallanElliott
2 жыл бұрын
What's terrifying about direct-online start up?
@Randomguy-wd5lw
2 жыл бұрын
@@CallanElliott With direct-Online the whole mechanism will try to go to speed instantly, so its like a mini earthquake with the vibrations and the sounds.
@CallanElliott
2 жыл бұрын
@@Randomguy-wd5lw Fair enough, I imagine that such a huge device violently jolting into life is an exhilarating experience.
@1234567890CAB
2 жыл бұрын
I'm pretty sure the Large Hadron Collider is technically a linear motor powered by electricity which would make it the world's largest electric motor
@onradioactivewaves
2 жыл бұрын
Bigger than the earths core?
@MrHichammohsen1
2 жыл бұрын
Congratulations on the 1Million subscribers! You deserve it!
@tinetannies4637
2 жыл бұрын
I love Paul giving such a serious presentation while wearing such an outrageous shirt, kudos to you, sir
@sylak2112
2 жыл бұрын
Wood pulp refiner and old woog log grinders did not had motor that large, but they were still in the 10 000 HP range and big. I worked around a couples of those back when I was a paper factory worker. they were always always impressive. the one on the grinder were originally built in the 40s ( and rebuld and upgraded over time, there were like giant wheels).
@williamshappley2106
Жыл бұрын
The Racoon mountain pumped storage facility east of Chattanooga, TN has 4x 413 MW reversible motor generators. That is, using the perfect 746 watts per horsepower, used in this video (which is not realistic) is over 553,000 hp per electric motor.
@alanjm1234
2 жыл бұрын
I used to work with a couple of megaWatt size electric motors on an oil refinery. We had some centrifugal compressors around 2000 kW, and an extruder that could draw up to 5,500 kW.
@MadScientist267
Жыл бұрын
I've done work at the NASA Langley facility on that tunnel. That motor is indeed, absolutely insane.
@SJR_Media_Group
2 жыл бұрын
Grand Coulee Dam in Washington State has (6) 65,000 hp pumps to move water from Lake Roosevelt Reservoir up 280 feet to Banks Lake. They can each move 2,000 cubic feet of water per second. There are also (6) pump / generator units that use or make 67,500 hp each. When power demands are high, these 6 units use water from Banks Lake that falls 280 feet to units running as generators. The 12 pumps are sufficient to irrigate 1.1 million acres in the Columbia Basin Recreational Project. To date however, only 670,000 acres are being farmed and irrigated. There is enough pumping capacity left for future use.
@misterflibble6601
2 жыл бұрын
All of KZitem should be like this. Heck the whole INTERNET should be like this
@BuzzKiller23
2 жыл бұрын
Any day Curious Droid releases a new video is a good day!
@rjung_ch
2 жыл бұрын
The Swiss once again doing great engineering
@freediverhd
2 жыл бұрын
I work for ABB, interesting to the company mentioned here. Didn't know we had such a product in our company history.
@Lightning_Mike
2 жыл бұрын
Both ASEA and Brown Bovery & Cie. have impressive histories and pioneered plenty of the high power stuff we use today. Something which has not changed since.
@pxidr
2 жыл бұрын
These electric motors propeling the HMS Queen Elizabeth are in fact from Converteam, a French company that was bought by GE.
@bobbobson1605
2 жыл бұрын
I deeply appreciate this sort of content - I've had massive electric motors on my mind for the past few weeks for no apparent reason. Doesn't help that in the slightest!
@oisiaa
2 жыл бұрын
Great topic!
@erikbertram6019
2 жыл бұрын
Teslas motors are actually a combination of permant magnet and reluctance motors. I think in general permanent magnet synchronous machines (pmsm) are more popular, although I am not completely sure and I think Teslas engines get most their power from the magnet, not the reluctance.
@erikbertram6019
2 жыл бұрын
This is a great video on the tesla motor: m.kzitem.info/news/bejne/xqmLyGuQsmeAnKQ
@Alexander_Sannikov
2 жыл бұрын
@@erikbertram6019 very cool video, I always wanted to understand why their rotors have such weird shape, and this one explains it quite in-depth, thanks.
@davelawday6609
2 жыл бұрын
That was brilliant..as a retired electrical engineer I found it truly fascinating.. thanks for sharing your knowledge..kind regards Dave 😁👍👍👍
@chrome2infinity938
2 жыл бұрын
The great thing about the electric aircraft carrier is that its powered by fuel burning turbine engines and for back up we use multiple internal combustion piston engines. Oh but the electric motors free up space so we filled it with turbines and diesel engines.
@_chipchip
2 жыл бұрын
It’s about efficiency though. Those turbines can generate power for the motors and the ships, and as stated both a turbine and an electric motor is more compact. Remember crude oil is cheap, and the big ship motors while complicated, don’t require such a varied set of technical expertise to maintain as would a gas turbine and electric setup. There will be other factors too like noise, redundancy etc factored in as well.
@crabmansteve6844
2 жыл бұрын
It brings me great joy to see you've made another video. I hope you're doing well!
@MostlyPennyCat
2 ай бұрын
The UK actually developed 150hp pancake motors for EVs 20 years ago. Called Hi-Pa Drive, they were 20 years ahead of the rest of the world, making a demonstrater 650hp bmw mini. 0-60 in 4.5 second. Including in reverse, because there was no gearbox, just forward and backwards. They went bust a few years later.
@plurplursen7172
Жыл бұрын
The combustion engine is a mechanical marvel, do doubt about it. But, the electric motor is the future.
@ИгорьКравцов-д4щ
2 жыл бұрын
Yay, my favourite weird fact narrator is here! Good health to you, Paul!
@CHUCKYCHUCKYBOBUCY
2 жыл бұрын
Some advice: don't ever change. Your videos are so epic and absolutely perfect; never change, avoid the temptation to become meta (contests, social over-engagement, etc.). Your channel is absolutely phenomenal.
@UncleManuel
2 жыл бұрын
You know it's a good day when Paul & the team are back to a regular upload schedule. 😎👍
@SRFriso94
2 жыл бұрын
The problem with electric motors hasn't been making them powerful enough to do whatever they're needed for, it's fitting them with a power supply that's both compact, yet energy dense, so that it can still be useful. Long-haul flying won't become electric anytime soon, because if you outfit a plane with enough batteries to make the journey, it couldn't take off anymore.
@edwardcardozo8325
2 жыл бұрын
Nuclear
@12pentaborane
2 жыл бұрын
@@edwardcardozo8325 Nuclear is only good for transportation systems where weight isn't a consideration. At best a series of nuclear reactors could run a beamed power network to power electric motor or super heat air in a cavity, like how fuel heats the air in a jet engine.
@lubricustheslippery5028
2 жыл бұрын
@@edwardcardozo8325 With radiation shielding it is way to heavy so it don't work with manned flights.
@larslindgren3846
2 жыл бұрын
While true that most long-haul flights won't go electric soon in some special applications it could. Airbus have operated a solar electric airplane for 26 days continius flight.
@larslindgren3846
2 жыл бұрын
That is not true for gridconected applications. The main problem with big electric motors is that there are few applications that need them. All generators could be used as motors instead with minimal modifications and they are available up to 2000 MW 20 times the largest motor according to the video. So if a more powerful motor was needed somewhere it would be no problem to make one. Just use an generator design and operate in reverse.
@billpierce8014
2 жыл бұрын
The main drive motor for the Unitary Plan Wind Tunnels at NASA's Ames Research Center at Moffett Field near Mountain View, CA is rated at 300,000 HP. The complex consists of 3 wind tunnels with the main drive being switched between them as needed. The original motor, which was installed in the 1950s, was about 240,000 HP, but was rebuilt in the 1990s using better copper and winding techniques, increasing its output to 300,000 HP. It is a horizontal shaft motor that's approximately 40 ft in diameter by 120 ft long.
@allocater2
2 жыл бұрын
strange that a motor that generates wind for small models is more powerful than a motor that MOVES AN AIRCRAFT CARRIER.
@michaelareay1037
2 жыл бұрын
I think you've certainly got the world's most powerful shirt there.
@sm3ttz
Жыл бұрын
I smile every time you pronounciate "Wärtsilä" as Wart-Zilla :) Sounds like a monster, which it is. Thanks for this episode. Always worth the time to watch your videos Paul.
@surfbyrd1
Жыл бұрын
Very good! I've worked on the motor generators that you've mentioned for Castaic lake peaking plant! Thank you!
@PakaBubi
2 жыл бұрын
it is 2am and i cant sleep. so watching this program with a glass of viognier and fully satisfied
@pomodorino1766
Жыл бұрын
Thanks Paul, I always have been fascinated by electric motors.
@sebastiaomendonca1477
2 жыл бұрын
Calling HMS Queen Elizabeth fully electric is extremely misleading. Like the vast majority of ships nowadays, it uses diesel generators and gas turbines to produce the electricity to run the motors. The goal of this two stage system is to take advantage of the more energy dense liquid fuel over batteries, while still reaping the benefits of the higher controllability of electric motors.
@Blox117
2 жыл бұрын
except nuclear powered ships dont use gas
@HappilyHomicidalHooligan
2 жыл бұрын
I think he meant Fully Electric in the sense that the ONLY thing turning the Propeller Shafts are Electric Motors, they are no Combustion or Steam Engines turning the Props...
@timsytanker
2 жыл бұрын
@@HappilyHomicidalHooligan don’t steam turbines spin up generators which then power electric motors to turn propellor shafts on other ships??
@HappilyHomicidalHooligan
2 жыл бұрын
@@timsytanker Not always, many ships propellers are driven directly by the MASSIVE Diesel Engines... It's only when a ship exceeds a certain Tonnage (don't know what it is though) that they must use an Electric Motor to drive the shafts because the need more torque than a steam turbine or diesel engine can produce...I think...
@timsytanker
2 жыл бұрын
@@HappilyHomicidalHooligan those diesels are for relatively slow but massive cargo ships with low RPM’s. For war ships you need speed and the turbine/generator/motor has been around since WW1 so not sure how this is a new thing.
@jamesnewman4351
2 жыл бұрын
Nice to see you back 👍
@ZMAN_420
2 жыл бұрын
As usual great idea and video. 👍🏻 Good to see you back! I hope all is well. Great presentation!
@michaeleaston547
2 жыл бұрын
Always curious. Thank you.
@onGlobalproductions
2 жыл бұрын
I develop motor controllers for work, nice to see this video
@randomdriver
2 жыл бұрын
I used to work at that factory which made that Nasa wind tunnel motor. They still do make very large motors, but I think that was still the biggest one. At last that was the case about 10 years ago when I switched totally different career and job.
@HappilyHomicidalHooligan
2 жыл бұрын
I don't know if it's one of the most powerful, but you have missed what is likely one of the physically largest electric motors... When I was in High School in the 90's, my class went on a Field Trip to Conestoga College in Waterloo Ontario, Canada and in their Motor Lab (sorry, I don't remember what it was called), they had a retired Electric Motor that was too large for them to ever turn on (it took so much power to operate, they would have caused a Brown-Out for most of Waterloo if they'd tried to start it). The Rotor was 50 FEET in diameter and it was used to turn the propeller shaft of an Oil Tanker (possibly a super-tanker but I can't remember), this ship has 2 of these monster motors, one for each propeller shaft)...each of these motors used 2 150 HP motors to drive the cooling fans to keep it at safe operating temperature when it was being used... BIG doesn't BEGIN to describe them... If the Tour Guide told us what the Output of the Motor was, I've long since forgotten it, but it had to be close to 100,000 HP since each of the ships 2 propeller shafts had only 1 of these Monsters driving it...
@gold-6680
2 жыл бұрын
7:12 Supra: “That’s cute” 🥴
@TheCJUN
2 жыл бұрын
ABB. Well done.
@Emm2004
2 жыл бұрын
Interesting topic
@userbosco
2 жыл бұрын
Love the content, as always! One correction, I believe the CVN-78, the Gerald R Ford, is the first of its class and also the first to replace the current in service Nimitz class. The Gerald R Ford is the new class of carriers in the USN. Cheers.
@mbazzy123
2 жыл бұрын
Fantastic work Paul I really enjoy learning from your work !
@Eytaris
2 жыл бұрын
electric motors used in the metallurgic industry are real giant too. I remember the main milling cage from one of the sites I worked at, you put in some 15 tons aluminium plates (roughly 6m by 2.5m and 50cm thick) and reduced them in strips less than 4cm thick in minutes. The motors are coupled in tandem (same shaft and two stator cages), they are huge, almost the same size as the NASA's ABB motor.
@LawrenceTimme
2 жыл бұрын
Difference is the diesel can do peak power all day forever whereas all these electric motors are max power for a burst of seconds and then they go down massively to 1/3.
@babylonfive
2 жыл бұрын
If the application requires more duty cycle, then various cooling techniques can increase it, way about 3:1.
@phalanx3803
2 жыл бұрын
@@babylonfive tho you can increase cooling theres another problem power its one thing when you connected to a grid but an EV faces massive problems when it comes to high duty cycle take a farm tractor like a New Holland T8040 it can put down 200kW for roughly 10-12 hours we will use 10 hours the means it needs 2000kWh lest say we made our pack out of Tesla 100kWh packs each weighting 600kg that gets us a 12 tonne pack thats as heavy as the base tractor the problem get out of hand when you start talking about combines that put out 500kW+ adn i am not even factoring in efficiency.
@Blox117
2 жыл бұрын
unlike diesel, electric motors do not have a maximum designed power range. they can spin and produce as much torque as the power given to them until there is a physical failure. diesel is antique technology used by ancient peoples and belongs in the steel scrap yard.
@LawrenceTimme
2 жыл бұрын
@@Blox117 kek. Clearly never seen a diesel train engine runaway then 😂😂
@Blox117
2 жыл бұрын
@@LawrenceTimme all the trains that are in constant use are electric. diesel is used for transporting cargo because batteries are expensive and there are no electric line infrastructure.
@JamesOKeefe-US
2 жыл бұрын
Fabulous, thank you Paul!!
@mceajc
2 жыл бұрын
Wahey! I live not far from the Grampian transport Museum. Fantastic place, highly recommended. Nice to see it get a shout out in the credits. Fascinating as always.
@jmjmservices
2 жыл бұрын
Great video..thankyou sir...
@markspencer171
2 жыл бұрын
Wonderful video. Thanks you for everything you do Paul. I love your voice, I go to sleep to it ! Stay well Brother.
@TheAnonymous1one
2 жыл бұрын
When Curious Droid releases a video I hit like first then watch it. always great content.
@byronlovesdrifting1
2 жыл бұрын
Just want to shout out Avid Technologies, based in the UK I believe still have one of most power dense axial flux motors, and introduced a carbon would rotor long before Tesla. Cool folks
@carholic-sz3qv
2 жыл бұрын
7:17 the way you said 5 millions wooooooow that’s insane! 😂😂😅
@gavin5861
2 жыл бұрын
I really appreciate and enjoy the explanation of these instead of just a list!
@Mr_Stone1
2 жыл бұрын
Horsepower, pound-feet, kW, MW, metres, tonnes, litres.. the unit salad in this video is crazy.
@Genius_at_Work
2 жыл бұрын
Welcome to Britain. Although the officially used Units revert to all-Imperial now, following Brexit, because Metric is "too European".
@geoffreybrewer2880
Жыл бұрын
We’ve done testing/repair on a 13,000hp motor that is essentially a pony motor for a 291,000HP @ 257RPM motor. It is technically a motor/generator, but the pumped storage facility where it is located has (4) of these in service. Crazy!
@friddevonfrankenstein
2 жыл бұрын
Damn NASA, that's one big ol' fan you got there. I would love to see Linus Tech Tips cool a gaming PC with that thing :D
@Drifting_Daily
2 ай бұрын
Imagine the sound they make.
@attikaifinch
2 жыл бұрын
I've been looking for a video on this topic for years! thank you
@rcasparb
2 жыл бұрын
Great video as usual. I would like to have seen an extra minute or two describing reluctance and how it differs from inductance.
@yakubuumar3261
2 жыл бұрын
OMG thank you Paul I been worried not seeing your videos.. thank G-D you’re back
@Silasssssssss
2 жыл бұрын
it's crazy to see these big power electric motors that move at a relativly slow speed. at work we have a 40000 hp gas compressor that is powered by a steam turbine that's roughly the size of a minivan and spins at 11000+ rpm.
@maciejpanecki
2 жыл бұрын
Happy to see you back
@chowardlaw8417
2 жыл бұрын
The Constitution-class battlecruisers (two - Lexington and Saratoga were completed as carriers, the remaining four were scrapped on the ways) used turbo-electric drive. Four shafts, eight motors: Each propeller was 14 feet 9 inches (4.50 m) in diameter and each of the four propeller shafts was powered by two 22,500-shaft-horsepower (16,800 kW) electric motors acting in tandem. So - 45,000 SHP on each shaft, 180,000 SHP total. Pretty big motors....
@hullinstruments
2 жыл бұрын
My doctor wants to talk to you. He couldn’t figure out why my eyesight keeps getting worse every few weeks, and then when you had your health scare and quit making videos for a while…… the degradation stopped. But now that you’re back in action just like clockwork every time I see one of those shirts I swear I lose a few points on my vision😂😂😂 I’m messing with you I absolutely love your shirts! ❤️ I’ve seen some of those big beauties up close. I live in Chattanooga Tennessee not far from Oakridge National Lab…and I’ve been lucky enough to have friends and family in some of the hydroelectric dams and pump stations and Oak Ridge and I’ve got to see some incredible huge beasts. Honestly kind of scary walking next to one of those at full speed realizing how much potential energy is there. I don’t even know if I can calculate the amount but it’s definitely a little freaky. Chattanoogas has a connection and history of manufacturing and large-scale projects like you wouldn’t believe. The history here and stuff is just crazy and most people don’t realize. Who knows maybe it’s one of the reason the government chose Oak Ridge, because the massive amount of machine tool technology and stuff in the city has just gone back so far.
@hullinstruments
2 жыл бұрын
Actually made the comment before you mentioned the Hydro electric or pumping stations. If you’re ever around Chatanooga and get the chance, not only do the multiple hydroelectric dams have some really unbelievable things. But the real site to see is up at raccoon mountain pumping station. And you can actually just drive up there and they have a bunch of nice bike and walking trails, and you can see a lot of the operation without needing to go underground. They even do tours. They even have one of the big beautiful full size turbines sitting out as a type of sculpture. Probably the most expensive sculpture in history as a issue with one of the massive CNC machines caused some type of problem. So I’m sure that beautiful piece of steel sitting there cost the taxpayers an absolute shit ton…. but it’s still a beautiful term and you can climb up into and look at and it really is inspiring. The type of motors they’ve got in those caves in that mountain will absolutely blow your mind. About 10 years ago it made statewide news when some type of vibration or issue actually caused the turbines to damage themselves and tear some things apart. And the refit was going to take half a decade maybe longer. I didn’t really pay attention to it much but there were a lot of workers up there constantly are used to fish up there and mountain bike up there a few times per week. I know a lot of people really pissed off because it was like tens of millions or hundreds of millions of dollars. But shit happens and it’s just the way it goes. No sense in crying over spilled milk and it was a good time to update everything anyway. The people in the city have no idea the type of technology cool advancements and wonders they’re living around and that power their homes every day. They couldn’t give two shits, to most folks around here Oakridge is somewhat of an unwanted and dirty nuclear heritage… but it really is astounding and beautiful. They have no idea the massive contributions to science that the little town of Oakridge has given the world. Not just terrible weapons. And even if you take the bombs as their only contribution, well it has kept us from World War III so far. And hell… At least when it happens won’t none of us know it anyway will all be gone in a split second. Much better in my opinion then dragging it out over decades and slowly watching everyone die.
@justinnovshek3091
2 жыл бұрын
I'm pretty certain you're wrong about the Queen Elizabeth class carriers being the first electrically powered carriers, unless you're just talking about the Royal Navy. The Lexington class carriers of the USN from the 1920s had turbo-electric propulsion, beating the QE's by almost a century.
@MitzvosGolem1
2 жыл бұрын
Excellent. Thank you.
@benarcher45
2 жыл бұрын
Fact, 1/10th of the earnings from views on his videos goes to buying those expensive shirts. J/K. Love your videos.
@andressarquis
2 жыл бұрын
¡THAT'S A GOOD LOKING SHIRT!. I TRULY WANT IT. Nice taste, Paul. Thanks for such a good content. You're just amazing
@rustyshakleford5230
2 жыл бұрын
Unilateral phase detractors to prevent sinusoidal depleneration are clearly seen in that may 1 1888 patent but nobody thought they were important back then.
@paulhaynes8045
2 жыл бұрын
Very interesting. But a tiny point - I think you should have mentioned the gas turbines on the aircraft carrier a little earlier. I spent several minutes of confusion wondering if I'd completely missed the RN having an electric powered ship! I was just reaching for Wikipedia when you clarified your 'electric ship' description. OK, it does have electric motors, but then so too do diesel-electric railway engines, and no one calls them simply 'electric'! That ship is a gas turbine-electric ship - take away the gas turbine bit, and it doesn't work.
@frankgulla2335
2 жыл бұрын
Again, gret insight and information, though the numbers were flying there for a bit. Thank you, Paul!
@josephpadula2283
2 жыл бұрын
My dam has 16 @ 150 MW generators each one About 210000 Hp on the turbine end.. They are of course synchronous generators 80 poles running at 90 rpm. Several are set to to use air to empty the turbine Scroll case of water and then run the generators as Synchronous Motors used to produce VARS for supporting the overall grid stability by producing a Leading power factor since most loads are Lagging. You adjust the field excitation to get the correct result. So the motors don’t Do anything but spin in the air just above the water level of the scroll case of the Kaplan turbines, but they are very useful. The other way to do this is to get huge banks of capacitors that can do nothing else.
@ChristopherOYoung
2 жыл бұрын
Amazing content. Curious Droid is one of the very few channels where I click on every new video they post. Well done Droid!
@blendpinexus1416
8 ай бұрын
i've got the sneaky suspicion that at some point it's more practical to build two motors and run them together as one big motor. though i don't see that happening anytime soon with how well they seem to build the megoliths used in ships.
@danielssonsgarage
2 жыл бұрын
The largest motor ive been too is Juktan HPV, 255MW syncronus motor as a pump. Is has a 1MW starter engine 😅
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