Synchronous motor start 350 HP 2400 volt

Рет қаралды 1,698,978

William Sheppard

11 жыл бұрын

This video was uploaded from an Android phone.

Пікірлер: 1 100

@KamFiction 9 жыл бұрын

Here's a layman's explanation of what is going on: This motor is designed to run at constant RPM (Hence it is a synchronous motor) but when it is off it takes a lot of energy to get it spinning because its magnets aren't in sync yet. To make it easier to start, the housing of the motor is left free spinning at first and electricity is put in, which makes the housing spin up to full speed. When that happens, the guy with the big wheel starts putting a brake on the housing, which brings the motor out of full speed, and the rotor inside starts to spin to compensate. By slowly putting the brake on, the motor can be made to start up whatever the load is, until finally the motor housing stops spinning altogether and the rotor is driving the load at speed. Its a really brilliant way of making something work for a relatively co

@KamFiction 9 жыл бұрын

K. Meinzer *its a really brilliant way of making a motor work for a relatively constant load without requiring more horsepower for the startup condition.

@heyitsvos 8 жыл бұрын

+K. Meinzer Acts just like a big electric clutch it seems. Genius.

@SummerFunMan 8 жыл бұрын

+K. Meinzer Why didn't you just edit your original posting instead? Anyway, wow, that seems like a weird way to have to start something that's just electric. I'm glad we don't have to do that with much newer equipment. It kind of reminds me of starting old big diesel engines with small engines -- "pony motors" or pony engines -- except that this doesn't have a smaller motor hooked to it.

@SummerFunMan 8 жыл бұрын

They are, *****, but you don't have to do anything close to this with them.

@SummerFunMan 8 жыл бұрын

...on modern ones, that is, yeah, *****.

@digitexstudios5634 3 жыл бұрын

Electrical engineers: A motor always has a stator and a rotor. This motor: ALL ROTOR!

@ey_malla5412 3 жыл бұрын

All Motor

@digitexstudios5634 3 жыл бұрын

Reminds me of BLDC Outrunner motor.

@riprogramer 3 жыл бұрын

wrong... Electrical engineers: A motor have rotating part called rotor and static part called stator

@NollieFlipX 3 жыл бұрын

+Mauro behold the Statator lol (joke). But it's interesting to see how they swap places mid operation

@samanli-tw3id 3 жыл бұрын

Actually the stator is also rotating to get the rotor turning.

@photon2724 3 жыл бұрын

everybody gangsta until the stator starts rotating.

@TheLightningStalker 3 жыл бұрын

Wouldn't it blow if your name was Fuse

@zalehlypelech5122 3 жыл бұрын

😀

@Neo-po2xw 3 жыл бұрын

@@TheLightningStalker 🤣🤣

@landonthebugkidfansmore1203 2 жыл бұрын

The reason the stator start rotating is because of the repelling electromagnets in the permanent magnets on the rotor

@Nanocosm Жыл бұрын

When the stator ain't static

@williamsheppard3906 8 жыл бұрын

This motor runs the main line shaft of a flour mill. Motor is 85 - 90 years old.

@paulhorn2665 8 жыл бұрын

+William Sheppard Which mill is that? Do you have more videos?

@sheep1ewe 7 жыл бұрын

An interesting thing is that 60 Hz was also a parralell standard in Europe as well during that period. (Not sure if it came from US or if it always been that way). (At least in my country.)

@josh6715 7 жыл бұрын

how many amps does it draw

@katthefanenthusiast5793 7 жыл бұрын

William Sheppard THAT OLD?? WOW!! Still running strong!! Must be quality! And synchronous motors are efficient, so I guess it won't need to be replaced anytime soon!

@katthefanenthusiast5793 7 жыл бұрын

Some CEILING FANS use motors like that, BTW, but they use a spring to self-start. They're the ones that are really small and lightweight, and typically have a cord and plug. They're probably not common in the USA, but they are common in the Philippines, and other parts of Asia. They're known as "mini ceiling fans".

@koonanthony 3 жыл бұрын

Jesus the sheer amount of kinetic energy built up in that thing. I would feel so unnerved standing near it, like standing over the edge of a sky scraper.

@Footrotflats251 2 жыл бұрын

Try standing next to a hydro turbine shaft 😳

@BritishEngineer 2 жыл бұрын

Energy density/kg is a lot denser than that spinning wheel in batteries, sugars ect.

@CM-bm9xl 2 жыл бұрын

But this one is kinetic. Be interesting to compare joules with gasoline in an internal combustion motor

@tigerseye73 4 жыл бұрын

90 year old syncro motor/ almost brand new switch gear. We had these at a steel rolling mill in Cleveland untill just a few years ago. They ran large 250 volt DC generators that provided power to slitters and narrow line pinch mills. The syncro motors helped correct the power factor for the plant.

@gregkocher5352 Жыл бұрын

I had a similar synchronous motor with 220Vdc generator. The MCC cabinets were made about 1928. They were wood and concrete and looked like 10 ft tall kitchen cabinets.

@wtmayhew 8 ай бұрын

Thanks for the bit of history. I took a machines class back in the 1970s whose lab looked a bit like the set from the Frankenstein movie. The synchronous motor was pretty neat. It was about 10 HP or so. It is pretty cool that with a little tweaking, you can make either leading or lagging phase. I never had to use that in actual practice. The facility where I worked was mostly office equipment and lighting, so a capacitor bank was all that was necessary to correct the power factor.

@zinckensteel 6 ай бұрын

Was that part of the old continuous casting steel foundry? I toured that place in 1999 iirc, very impressive memories.

@wtmayhew 6 ай бұрын

@@zinckensteel I took Machines at a University which had a positively ancient lab, but at least the principles were sound. I worked in an office for most of my work life. Some of my relatives worked in a steel mill. I never got the chance to tour because I was under 18 at the time, and mill policy was no one under 18 allowed in.

@hersenskim 7 күн бұрын

Technically it is then no longer a Synchronous motor but a Synchronous Condenser

@davidwiles4238 6 жыл бұрын

I work at this location and it is quite amazing how a 90 year old motor is still running almost everyday 24 hours at a time

@crazyyoutubeuser2444 5 жыл бұрын

Good old quality piece right there!

@rupert5390 5 жыл бұрын

love these motors they will go for 300 years I pulled a 2 hp century american repulsion motor out of a field - it had a damn rats next in it - cleaned it up vacuumed etc - oil bath bearings - went first go and runs like a sowing machine - these machinist engineers made things to last.

@markflierl1624 5 жыл бұрын

It's not amazing. Today, they build crap. Google the light bulb conspiracy.

@rupert5390 5 жыл бұрын

are the bearing oil bath or oil film with a reservoir and a ring that pick up the oil?

@rupert5390 5 жыл бұрын

@@markflierl1624 I have to agree picked a massive 90 year old century motor made in the usa - been in rain in a field and had a rat living in it (found the nest) cleaned it up and it fired and works like a sowing machine 1st go - if you saw the photos you would not believe it.

@RODALCO2007 9 жыл бұрын

That is one bad ass motor. Awesome video. Love the way it spins and the starting sounds.

@thedogememesproductions6354 6 жыл бұрын

RODALCO2007 Agree

@jamesmarcusen5708 6 жыл бұрын

RODALCO2007 99

@wildfirephoenix2262 6 жыл бұрын

RODALCO2007. This monster powerful motor would probably be something I would install under my house.........

@timmungenast 8 жыл бұрын

I love this! My dad was one of the fathers of solid-state motor control but he loved old tech, whether it was steam, early diesel, or olde-tyme electric, and I wish to God he was still alive to see this! He'd love it even more than *I* do!

@musfiqursoikot2002 29 күн бұрын

What’s your father’s name sir😮

@Aussie50 10 жыл бұрын

Fantastic!, I have never seen a motor start like that before!

@josh6715 9 жыл бұрын

What a fantastic sound

@laksvlogs7151 6 жыл бұрын

This motor usually seen in cement plants and minning

@Tokaisho1 4 жыл бұрын

They had amazing tech

@CraigTheBandit 4 жыл бұрын

Rest in peace , aussie.

@bazzle592 4 жыл бұрын

:'(

@ve2zzz 4 жыл бұрын

Teacher... What are the stator and rotor in a motor ? Teacher: The stator is the stationary part of the motor and the rot.... HEY !! WAIT A MINUTE !!!

@samueladitya1729 3 жыл бұрын

both stator and rotor rotating right?

@RedRatFPV 3 жыл бұрын

@@samueladitya1729 on a synchronous motor yes, on an asynchronous no.

@blingVolcano 3 жыл бұрын

@@RedRatFPV no, synchronous motors still only have one moving component, the rotor, it's that the magnetic field is rotating at a frequency that matches the frequency of the ac signal being applied.

@ultimateearrapechannel31 7 ай бұрын

0:03 thats the sound of pure electrical current🔥🔥

@deezelfairy 8 жыл бұрын

I think I get how it works - it's like the predecessor to modern soft start technology using mechanical means, letting the motor housing to rotate initially then gradual braking to get the housing to slow down, the magnetic field counter force starts the rotor spinning the opposite direction and the slow braking effect brings the load on gradually reducing inrush current, clever and simple, I love it!

@DKJones96 8 жыл бұрын

+deezelfairy It's because of a lack of starting torque. Synchronous motors of this size usually don't even start under their own power because line frequency is too fast for them and they just sit there and hum. You can see in the video when it is starting up that the rotor doesn't even budge but after the thing gets going it can actually make enough torque to start rotating the line off the inertia of the stator.

@totaltwit 8 жыл бұрын

I though sync motors needed a pony motor to get started. I guess this is what deez is suggesting, the outer stator is a rotor, but to get that amount of mass spinning I would think still needs a good lump of power, maybe that's why it hummed so much on start.

@paulconner115 4 жыл бұрын

DKJones96 I suppose when I don’t want to work, I just sit there a hum too 😂

@victordubowski1276 3 жыл бұрын

They start the stator into rotation, by a secondary small asynchronous motor, thats attached with a belt or chain of some sort, I can't tell by picture, because it's behind the stator. Once it comes into step with synchronous speed they start applying the brakes on the housing, of the stator.

@nonreverb9935 3 жыл бұрын

@@victordubowski1276 The motor doesn't use a start motor at all. The motor housing is energized and spins due to repulsion with the run rotor. As the brake is applied, the rotor starts to spin in the opposite direction until the housing fully stops and the rotor is up to operational speed. An elegant design.

@R5H4D0W 9 жыл бұрын

I'm going to play this this through the speakers in my work shed on a weekend close to midnight and see how the neighbors react

@MrShirazkhan 5 жыл бұрын

yeah drive them crazy :D

@savagesock3598 5 жыл бұрын

R5H4D0W you get evicted?

@TheRewindKing 5 жыл бұрын

R5H4D0W sound proof room would help lol

@glendooer6211 5 жыл бұрын

@@savagesock3598 Make the street lights flicker they would thing some one is in the Electric chair,

@OwenMessenger 4 жыл бұрын

5 years later: so how’d it go?

@iBackshift 5 жыл бұрын

Ive seen a lot of synchronous motors (worked in a paper mill) but never one that had a "soft start" like that before. Really great to see that category of motor running. Looks about 240 rpms.

@ghost307 7 ай бұрын

Probably a wound rotor motor based on its appearance.

@gajterpin2312 9 жыл бұрын

The rotating stator is basically a huge startup clutch, allowing slow start of the following machine.

@macrowave9427 8 жыл бұрын

Lol. That sounds like my computer turning on.

@versedbridge4007 5 жыл бұрын

This sounds like my washer during the spin cycle

@REXXSEVEN 4 жыл бұрын

Reminds me of those IBM PC/XT models.

@jesses1589 4 жыл бұрын

@@versedbridge4007 yeah does sound like my 35 plus year old Kenmore. Keeps on going though! Get something new and see if your Samsung will run that long. Awe yea and I'll get a text when the spin cycle is done on my washing machine.

@m_l_hill 4 жыл бұрын

Loads of steam comes out of my computer

@lengaming1651 4 жыл бұрын

Oh its probably your hard drive

@Rainhill1829 7 жыл бұрын

That was satisfying. Neat to see old electric tech has just as much character as old fuel fired machines.

@vincentguttmann2231 3 жыл бұрын

I bet everyone would want an electric car if they sounded like this when starting

@davidsalny7174 9 жыл бұрын

Great! Have not seen a super-synchronous motor in quite a while these were often used in cotton mills and for driving large compressors. This one will run forever THANKS for the treat...Dave S.IEEE

@wanderswings1993 3 жыл бұрын

I used to motivate myself watching this while I was preparing for one of the toughest competitive exams for engineers in India. Today I have got a job of class one executive Electrical Engineer. Now looking at this video has made me nostalgic...

@abdulazizhawsah9884 3 жыл бұрын

Executive Electrical Engineer?? What is that like? Is it hard?

@wanderswings1993 3 жыл бұрын

@@abdulazizhawsah9884 Joining is getting delayed due to corona virus condition. Let's see how does it look like.. in india, jobs are classified in descending order as group A, group B, group C etc. Group A jobs are also called Class 1 jobs or sometimes Executive job..

@AshutoshSingh-to9vx 3 жыл бұрын

ESE ?

@wanderswings1993 3 жыл бұрын

GATE

@AshutoshSingh-to9vx 3 жыл бұрын

@@wanderswings1993 I'm preparing for gate '21 also :)

@Kelthor85 7 жыл бұрын

This is the power supply for Chuck Norris' beard trimmer.

@coolbluelights 8 жыл бұрын

Motor porn right here... Love that AC buzz

@vagelisxythalis6860 8 жыл бұрын

+coolbluelights Absolutely !!!!!

@mossa224 8 жыл бұрын

me too

@thomashardin911 7 жыл бұрын

coolbluelights I do too ^_^

@emmanuelbarrue9403 3 жыл бұрын

Yeah

@matid8453 3 жыл бұрын

me too

@bobproxmire3637 8 жыл бұрын

Hands down the best startup Video I have ever seen on KZfaq. thank you for posting it!

@no1shere710 4 жыл бұрын

The inventor Lawrence Hammond used very small synchronous motors of his own invention first in his electric clocks and then in his famous electric organs. The motors' ability to run at one continuous speed for an indefinite period of time would, of course, be necessary for accuracy (in the clocks) and for sustaining a constant musical pitch (in the organs).

@midsouthexpress 2 жыл бұрын

Hammond organs also used start motors. The old organs had a start and a run switch.

@davida1hiwaaynet 7 жыл бұрын

That is an amazing, and totally badass motor design. Love it and would definitely like to see it in person some time.

@KaienSander10Official 8 жыл бұрын

The AC buzz.... Its sounds soooooooo good :P

@AladinTechnology 7 жыл бұрын

KaienSander10 its nice when you are there in person

@driftliketokyo34ftw35 4 жыл бұрын

I agree.

@kellycasteel4218 Жыл бұрын

Thanks for sharing by the way. I am amazed by ingenuity of the older equipment designs. Most of my career has been in O&M of early 1900's electrical generation.

@gavincurtis 5 жыл бұрын

Never got to see Rosie Odonell's treadmill control room before. Thanks!

@charlesdelair61 4 жыл бұрын

I was drinking coffee...now I need to change my shirt! 😝

@Zonkotron 9 жыл бұрын

The old engineers knew what they were doing. Not possible: Impossible. Instead of VFDs and all other sorts of complex solutions, just use the most simple mechanical solution possible, which can not randomly fail btw. and call it a day. Lovely.

@whozaskin3639 5 жыл бұрын

Exactly. Back when writing a man a paycheck wasn't seen as a cardinal sin amongst shareholders.

@dtvjho 5 жыл бұрын

Can't be hacked remotely, either. Only maintenance it needs is a bit of oil in the bearings. Turbine oil lasts years.

@SpencerHHO 5 жыл бұрын

I work with the modern solutions, whilst they are easier most of the time, as you say they do randomly fail and it is a massive pain in the ass. It

@TheTarzan58 5 жыл бұрын

And cannot be killed by solar sunspot flares, or buggy software.

@nightmareinaction629 4 жыл бұрын

TheTarzan58 yes it can wires would melt

@douro20 10 жыл бұрын

Synchronous motors like this have very little starting torque but are extremely efficient. Complex electrical gear is required to protect the motor in cases of overheat or loss of line frequency synchronizaion.

@willrobbinson 3 жыл бұрын

WOW what a fantastic way to startup a load by slipping outer at first then braking it to transfer load to rotor FANTASTIC !

@fxbear 18 күн бұрын

I’ve seen this video a dozen times and it still thrills me

@MIZUch. 3 жыл бұрын

Everyone else: "wow that's amazing it's so strong!" Me: *_ÜÜNNNNNNN_*

@MenzelMotors 3 жыл бұрын

for dessert maybe a ... HUUUUUMMMH ?

@fototoestelletje 3 жыл бұрын

ÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜNNNNN

@WELLINGTON20 3 жыл бұрын

It’s the 50-60hz frequency

@puremathematician1372 3 жыл бұрын

@@WELLINGTON20 Yeap made by Nikola Tesla using Alternating current AC

@puremathematician1372 3 жыл бұрын

@@WELLINGTON20 100volts-240volts

@Sharkie626 7 жыл бұрын

Anybody else notice he managed to brake the motor housing to exactly where it was before it was even turned on? Impressive! haha

@RODALCO2007 7 жыл бұрын

Yes, i noticed that too.

@FennecTECH 6 жыл бұрын

dumb luck xD

@DVXCine 6 жыл бұрын

Must be a high or low spot in the brake and it stops there everytime

@MrAlex3461 6 жыл бұрын

I can only imagine that's the case. unless the flywheel's weight distribution is not balanced

@michelwazouskey4799 5 жыл бұрын

@@MrAlex3461 would explain all the noise when the flywheel was free spining

@tonyeezi7315 6 жыл бұрын

I seem to have watched this video about twenty times over the past couple of years - and it still captivates :D

@SharkoonBln 3 жыл бұрын

Same here... Twenty or more times.

@cuttingcut1321 2 жыл бұрын

I read in a book( Alternating Current Machines by Puchstein- Lloyd ) about this method of starting a synchronous motor. Thank you very much for this video.

@dragonrider4253 6 жыл бұрын

I would love to be there in person when they turn this bad boy on. I love electrical noises like this, it's like music to my ears.

@FranzFerdinandVIII Жыл бұрын

Nothing like 60Hz music in the morning.

@TD_YT066 11 ай бұрын

Right? When I was a kid we had an (old at that time), electric fan that was reversible, the sounds that induction motor made when I reversed it at full speed as it decelerated, reversed and came back up to speed were great. Of course it got very hot if I did it several times in a row, probably why I don't have that fan anymore ;)

@drewclancy5174 3 жыл бұрын

Props to the camera guy for making it easy to see what’s going on too!

@grantsheppard9325 3 жыл бұрын

@Denvermorgan2000 6 жыл бұрын

Wow what a great idea spinning the outer housing then slowly braking it as the load comes online.

@Boom-lr5lw 3 жыл бұрын

It’s nice to know that the positions of the first spinning motor’s blades are back at its original place

@octaldecimal2729 8 жыл бұрын

I work at the old Inland Steel mill in NW Indiana, we have a 3500hp 13,800v synchronous motor we use for a giant fan at the sintering plant. 250v DC field is all done with digital electronics.

@vprtech 9 жыл бұрын

What is cool to me, is that it looks like this is actually still being used somewhere,, not in a museum. Is it possibly for some public utility like a ventilation fan for a subway or something ?

@EATSLEEPDRIVE2002 3 жыл бұрын

Not sure if you saw the posters reply or not, it’s the main power source in a flower mill

@jayshepherd5014 8 жыл бұрын

That was awesome!!! Love stuff like this! Thanks for sharing.

@MsLordenatas 4 жыл бұрын

What a beast!!! Greetings from Brazil!

@pavelmolodchik 8 жыл бұрын

the perfect ringtone for my alarm-clock

@marcostet 7 жыл бұрын

when a electric motor sounds like this... then you know your playing with POWAAAH! it sounds like hell is opening at the beginning of the start

@bobr.6312 5 жыл бұрын

Have never seen anything like this, wow, ingenious AND durable.

@nikolaiorr8383 4 жыл бұрын

I want one, that has to be one of the best start ups i have ever heard

@LegoStormTrooperPL 8 жыл бұрын

That sound at the start..... "LIFT OFF!"

@fryode 8 жыл бұрын

"Ready?" "Yeah." Holy shit I sure as hell wasn't. That 3-phase back-EMF sound...

@steveno3375 Жыл бұрын

sounds like my ceiling fan starting up except for the end. very nice motor!

@davemeyers2633 8 ай бұрын

I love this video. I have watched it a dozen times and im sure i will watch it a dozen more

@flaplaya 8 жыл бұрын

They sure don't build them like that anymore and it's comical how they underrated motors back then. I bet she has the capacity to pull 1000 HP. Great video, glad to see that machine still functioning.

@HobbyOrganist 8 жыл бұрын

+fla playa Yeah in contrast with today where you buy power tools and vacuum cleaners and they use this bullshit "x hp 'developed' " rating! you might see a bandsaw or something with a dinky little power cord and the label might say " 2 hp developed" and the motor is like the size of a softball, 2 hp yeah right!!!! I have a 1928 Century repulsion-induction motor that is 2 hp, it weighs 290#

@flaplaya 8 жыл бұрын

Victorian Sculptures Probably 20 HP. Is it 25 cycles by any chance?

@HobbyOrganist 8 жыл бұрын

fla playa No, it is positively 2 hp it states it on the motor plate, it's 60 cycles, 220 v single phase 1165 rpm kzfaq.info/get/bejne/i5eDn7VoybPGfJs.html

@flaplaya 8 жыл бұрын

The real doktorbimmer I remember you. Shouldn't your name be The Real Stalkerbimmer? Lol. You got problems.

@flaplaya 8 жыл бұрын

Victorian Sculptures Cool thanks I'll check it out now.

@metrofan1000 10 жыл бұрын

Tasty sound while startin' up

@OrangeApocalypse 2 жыл бұрын

This is by far my favourite electric motor startup sound. This is what i would want my Flying Saucer startup to sound like 😄

@WENGACZLP Жыл бұрын

I love how the guy starts it by feel from experience and then there are the two engineers with hard hats that monitor something I'm sure is important and probably feel really impressed that the guy just started it effortlessly :D

@simonreiger7422 6 жыл бұрын

The similarity to a planetary gear set, including the band brake is striking

@smitajky 7 ай бұрын

I would say that inside the casing between the stator and the large gear there IS a planetary gear set. You can see the large gear if you look through the stator to just beyond the poles.

@NathanH5 10 жыл бұрын

Looking at my old GE-Canada synchronous motor catalog, I believe GE called this a "Super-Synchronous" motor. Most large synchronous motors utilize squirrel cage bars in the rotor for starting on 3-phase AC, and a separate exciter unit is used, as seen here when the camera rotates over to the 2 guys at the electrical cabinet. Other synchronous motors have the exciter on the rotor shaft, opposite end of the output shaft. Honestly, I had no idea that the stator rotated to start the motor, I assume that the fellow is turning a hydraulic brake valve to slow and finally lock-down the stator, after the rotor is up to synchronous speed. I believe that there are squirrel cage bars for the AC stator to react with and start spinning around the rotor. The spinning field must cause the rotor to develop massive starting torque. Motor looks to be driving a very large belt. In my catalog, the super-synchronous motors were driving cement factory equipment. This is a GREAT video!!! It is so wonderful to see an old, open motor in service today, most new sync and induction motors of high HP look like enclosed boxes...booring!!! Thanks for this awesome video!!

@Ihaveanamenowtaken 10 жыл бұрын

In fact, he's turning a lever connected to the riveted steel belt around the motor stator -you can see the whole brake mechanism at 2:15.

@deuceaid6868 6 жыл бұрын

gotta love the way they figured out how to do things in the old days!!!! thanks for uploading.

@Edmocci 4 ай бұрын

What’s ‘funny’ is you or ‘they’ couldn’t do it at all today. Shame those guys in the old days were so poorly educated and such buffoons

@PocketOperatorGuy 4 жыл бұрын

The sound of that buzz at startup. Beautiful...

@doctor_vit 7 жыл бұрын

That's a powerfull sound!

@kjrivas7419 9 жыл бұрын

In one of their synchronous motor catalogs, this type was called the "super synchronous" motor, their photos showing them running in a cement plant. Most large, old synchronous motors are self-starting...They have a squirrel cage in their rotors so they start like a standard 3-phase induction motor to get them up to speed. As far as I am concerned, this type here requires alot to get it going. The standard synchronous motor is easy to start: Soft-start it like an induction motor and it is running!

@web1bastler 8 жыл бұрын

Impressive, Truly impressive especially in comparison with modern synchronous motors

@andrewedis9907 3 жыл бұрын

Never seen one of these in the flesh so thankyou UTOOB

@jamesplotkin4674 3 жыл бұрын

Love inhaling brake band asbestos lining in the morning!

@chuckbear1961 10 жыл бұрын

Very interesting how the clutch system works. I figured out how it works just watching the video. I have a very old 1/4 HP Emerson motor that has a centrifugal clutch built right inside the motor giving the motor very high starting torque.

@moschettiflavio3635 Жыл бұрын

This is so amazing... I'm watching this video every year 20 times probably... but still cool. It would be nice post another one in better sound quality or showing the machinery this motor moves while running ... probably they're old too.

@spoonnz 8 жыл бұрын

wow.... just wow... the way its starts is amazing!

@porschetigersince2006 3 жыл бұрын

Actual leaked footage of my brain trying to generate a response other than “You too” when the waitress says “Enjoy your meal”

@scowell 8 жыл бұрын

A giant Hammond Organ... Laurens Hammond invented the synchronous motor. Star-delta works on polyphase induction motors... synchronous motors have lower torque, so must be helped to start... hence the two-stage, two-switch method to start your Hammond organ. Wiki has an excellent article on this, although I don't believe that they cover this exact scheme. Great video! Ungodly noise on startup... I've had crashed sound cards make that exact same noise.

@teardowndan5364 8 жыл бұрын

+scowell While directly line-driven synchronous motors may have very low startup torque and require slip to limit startup (a stalled motor acts almost like a dead short), modern synchronous motors with VFDs can provide massive torque by letting the VFD provide current limiting instead of the motor - the only limit to torque is the motor and VFD startup current limit. That's why modern locomotives are diesel-electric - full torque and 3000+HP available from 0RPM/dead-stop without the ginourmous and notoriously unreliable mechanical transmission. The newest generation of cordless power tools are going brushless synchronous as well. Same power and torque using smaller motors, simpler/no gearbox and no brushes to wear down.

@marvkausch 8 жыл бұрын

+Teardown Dan The classic synchronous motor such as found in old electric clocks has no startup torque including this one. It is being spun up by another motor, likely a 3 phase induction motor. Most big VFDs are induction motors and also are not synchronous. However, brushelss DC motors have a permanent magnet rotor and a rotating stator field. Cordless drills do still have a gear reduction.

@teardowndan5364 8 жыл бұрын

Marv Kausch A brushless "DC" motor is little more than a synchonous motor with the rotor field replaced with a permanent magnet and some form of position feedback to make the driver generate the correct stator drive timings to make it turn at a given speed for a given load.

@praestant8 8 жыл бұрын

Hammond did not invent the synchronous motor. He just managed to find other applications for it... The clock and then the organ.

@4bikeregistry 7 жыл бұрын

Correct. Tesla almost spun over in his grave.

@CrippleX89 3 жыл бұрын

Hell, the housing rotating at such speeds is just scary! It looks and sounds like it comes straight out of one of those Frankenstein movies...

@ostlandr 7 жыл бұрын

That is incredible. If I ever get around to writing a novel about steampunk spaceships, I am SO stealing this startup procedure as a ship going to warp speed.

@eafindme 9 жыл бұрын

The sound is just like an old time machine came back in operation...

@wills.5762 8 жыл бұрын

Sounds like my PCs case fan spinning up

@dragonslayerornstein387 3 жыл бұрын

What a beautiful machine!

@johntdso 10 жыл бұрын

GE does make a synchronous motor that has a very heavy amortisseur winding in the salient pole piece faces. This allowed the synchronous motor develop a much higher starting torque than a motor with a light (damper) winding. One of the motors I was familiar with was a synchronous motor driving a chipper disc in a plant that made ceiling tiles - not a good choice for a sync. motor because it would be knocked out-of-sync frequently, but the motor sometimes operated without any load for an extended period of time. The motor was rated 350 HP at 514 RPM.

@buddyclem7328 5 жыл бұрын

Amortisseur? You are using a lot of words that aren't English words.

@davida1hiwaaynet 11 жыл бұрын

Wow at the freewheeling stator!!! This is an amazing machine. Thanks for sharing it. What is the driven machinery?

@CEmpty2044 3 жыл бұрын

Soundly Like an Old Diesel.

@alexandrumarzenco6998 4 жыл бұрын

This is awesome! I'd love to operate this motor one day

@stopdusty420 4 жыл бұрын

That seems like a high rpm for that heavy outside case that is riveted together. Wow neat

@tylerpripps4969 7 жыл бұрын

I love the knee-height "safety" rail.

@Sharkie626 7 жыл бұрын

Back then, people had more common sense.

@snookysnax 6 жыл бұрын

and people were shorter !

@elrincondepasstrantest914 Жыл бұрын

esta muy bueno el video, de hecho se puede apreciar de forma muy básica la explicación sobre el principio de arranque de un motor síncrono, este motor está diseñado para funcionar a RPM constantes (por lo tanto, es un motor síncrono), pero cuando está apagado se necesita mucha energía para que gire porque sus imanes aún no están sincronizados. Para facilitar el arranque, la carcasa del motor se deja girando libremente al principio y se pone electricidad, lo que hace que la carcasa gire a toda velocidad. Cuando eso sucede, la persona con la rueda grande comienza a aplicar un freno en la carcasa, lo que saca el motor de la velocidad máxima, y el rotor interior comienza a girar para compensar. Al poner lentamente el freno, se puede hacer que el motor arranque sea cual sea la carga, hasta que finalmente la carcasa del motor deje de girar por completo y el rotor impulse la carga a gran velocidad

@MorganSullivan 8 ай бұрын

Copiar está feo

@elrincondepasstrantest914 7 ай бұрын

@@MorganSullivan así es aunque yo solo traduje el comentario amigo

@mathuetax 9 жыл бұрын

Wow, that was cool on so many levels!!

@TheKurtsPlaceChannel 3 жыл бұрын

Great video. Thanks for posting this. Have a nice day.

@RinoaL 10 жыл бұрын

holy shit this is awesome

@kjellringstrom6217 4 жыл бұрын

Of some reason i find that old motor a bit eerie, like it´s the one that powers the escalator to hell.

@JoshuasRecordings 8 жыл бұрын

That is one unique motor! I really like it!

@naarealy 3 жыл бұрын

This is fascinating! Its like having a clutch, but the clutch (brake) is actually acting on the stator.

@nibba2359 6 жыл бұрын

Finaly a motor that fits into my electric scooter

@Edmocci 11 жыл бұрын

When the motor first starts, the motor housing itself spins around the stationary shaft. As the rpm's increase the guy turning the wheel is applying brake to that spinning motor housing causing the shaft to use the increasingly held housing as a reaction surface, and as the housing is braked, the shaft begins to spin turning the machinery. Finally the housing is completely held and all electric power is turning the shaft alone and running the machine. Just a way to bring it up to speed.

@rEdf196 8 жыл бұрын

Our local pulp and paper mill used to have a couple of huge pre 1920's 400+ hp wagon wheel type electric motors that ran various equipment at the site until they were replaced in the early 1990's

@waydav1s 5 жыл бұрын

WOW, that's so cool! It's a clutch set up quite unconventionally.

@bearbon2 9 жыл бұрын

I can't resist watching this every time it comes up on my recommended list. What kind of factory is this? - And where?

@iannickCZ 6 жыл бұрын

I saw somebody mentioned a mill, but I do not know where.

@bryanyoung9482 6 жыл бұрын

iannickCZ you do realize the post you reply to is 3 years old

@Macintoshiba 6 жыл бұрын

bryan young so what? Just because its 3 Years old doesnt mean its not a question

@TheAngelOfDaeth 5 жыл бұрын

lolol xD

@SebeG83 7 жыл бұрын

Start sound like reactor purge from Alien Isolation :D

@mathuetax 10 жыл бұрын

Wow that sounded awesome!

@SteamCrane 7 жыл бұрын

This makes me smile.

@sirisoj 3 жыл бұрын

this motor opened the hells door O.O

@SimoneMazzieri 8 жыл бұрын

Before star/delta motor start ....

@sweburner 8 ай бұрын

I didn't understand until it stopped spinning! During the startup I was just "thaaaaat's not synchronous...with anything...". A non-static stator, just the thing to make my day! :)