Initial Start Up Testing of 1915 Vintage 750 HP Wound Rotor Motor after Rewinding the Rotor & Stator
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- čas přidán 28. 08. 2024
- City of Memphis Gayoso Pumping Station 750 HP 6,250 Volt 116 RPM Wound Rotor Motor #3 initial Start-Up testing after rewind of both the stator and rotor. This machine drives a pump that moves 135,000 GPM of storm water from the Gayoso drainage area into Wolf River Harbor between Mud Island and the City of Memphis which then feeds directly into the Mississippi River. When the Mississippi River is higher than 28 feet, one of these four motors will be started to help pump down storm water from old Gayoso Bayou basin in the harbor protecting the City of Memphis and especially St. Jude's Childrens Hospital research wing.
You've got to love motors so large they are their own warning sirens.
heh lol
@@wildfirephoenix2262 That really made me laugh!!
It's the noise of the pump too
Well at least I know we weren't watching the same video.
Still building them today. More NEW Ships comming soon using Series Hybrid powertrains. Similar Size only difference is 70,000hp.
What an awesome looking and sounding motor. Has a very 'Victorian' look to it, like an old industrial steam engine...
Love the thoughts back then
"Motor not making enough power? Make it bigger"
@@AspentheGuardian to be fair, it works. Motor isn't giving you enough power? Just have more motor.
Many Steam Engines had Flywheel Generators which look exactly like this Motor.
@assassinlexx Given that Syncronous Motors and Generators are very similar (just like any kind of Motor and according Generator), this Motor here may very well share many Parts with Syncronous Generators from the same Manufacturer.
@@Genius_at_Work I often wondered about that...
Only 16 seconds? I can't read the comments that fast!
Don't use auto-play. It's insidious.
That is WILDLY relatable.
The nice thing about old low-speed high-power motors is that they can be quite narrow for their diameter, and you can easily imagine the magnetic forces pulling the rotor around. Wide-open build makes it easy to cool the windings without huge windage losses at only 116 rpm. Thanks for the video!
Also very high torque. The lower the speed for any given HP, the higher the torque.
I am sure that is Bayou Gayoso Pumping Station in Memphis TN. I ran that plant for several years before retiring. The station was built in 1915. The pumps are rated at 300 CFS, driven by 750 HP motors at 117 RPM, there are four units as well as three sewage pumps in the station.
Yup, says it in the description
That's 45,600 Nm torque!
how much lube does this baby use?
@@mreese8764 what's that in real units?
@@ronblack7870 34296,64 ft lb
I love that it still looks original, too. They respected it when they rebuilt it. Everything around it is modern and grey. It stands out as a unique piece of vintage equipment.
You name it. All the greyness today is killing us slowly but surely.
The walls are red, the railings are yellow. Not much you can do to change the originality of that motor.
@@kaffeetasse9455 Exactly, all the grey and white is just depressing
I am glad to see thy take care and service this motor rather than replacing it with a modern unit. They are works of art compared to the rather dull modern designs.
Old motors are pretty efficient too, so there's not much reason to increase complexity and cost.
Well it’s also that they still work and large industrial AC motor technology has not advanced much in 100 years
Large open-frame construction means that the coils have lots of exposure to air for cooling without a fan.
Things get replaced when the cost of operations outwheigh their replacement cost. Other than that there are no reason to replace something unless regulations require it. If it still run and operate on budget, then replacing it would be a waste of money.
@@charlie_nolan Because there really isn't anything to improve there. What else can they improve, when the efficiency is already there?
The reason these types of motors are still in use is because they are very efficient.
Are they? I mean... are they?
What makes them more efficient than comparable sized motors of today?
@@MassLox I personally don't know except that when the DC field is adjusted right they have a unity power factor. Overexciting the field will give a slightly lower power factor of 0.8 but in this condition it acts like a reactor which can be used to correct the power factor of downstream equipment. These motors, however, have the disadvantage of having a very low starting torque so they are generally used in applications where the motor runs around the clock, and if it has to be stopped and then restarted it is done without a load.
Another factor is that 750 hp electric motors aren't cheap. It may be much more cost effective to rewind it and give it some fresh bearings than it would be to buy a new replacement.
But I still don’t know what this one is for.
15 seconds isn't long enough, had to replay 10 times for satisfaction...
true..
Me too
czcams.com/video/m1uGtfEqkQM/video.html
Nothing like the sound of a big electric motor starting up!
When the mechanics put their hands in their pockets you know its solid
105 years old, and still in outstanding condition and doing work, you be lucky to see engines that big from the 90s even work today.
just like old tractors and farm equipment, another example i found is a made in Rhodesia heating coil for a boiler, still in good working order to this day, i think it was labelled 1960 something or 1970 something, when you have to be a self sufficient economy you dont really skip out on longevity, another example of that being in about 2017 i worked on replacing a 1950~ power distribution system for a saw mill, the old one had wires insulated in cloth and wax. and fuses made of ceramic, a lot of it still working.
Beautiful, isn't it?
Massive respect for rewinding it over replacing it.
Amazing piece of old equipment! Love the sound.
Must've taken one heck of a long time to rewind. The sound is worth the time and effort though!
I’ve had the pleasure to see this motor is person. Beautiful
@AaronB 24034 not an election. I was a wide eyed green apprentice plumber when I was it. Don’t remember looking at the electrical specs. The motor is 8ft is diameter. Each motor still has the brass plaque that says it was built in Milwaukee in the 1890’s. We were there to clear a stoppage in the sewer line.
@AaronB 24034 it is 750 HP, 6,250 Volt, 116 RPM. If you do the math, the current would be around 100 amps, power consumption would be about 600 KVA. I'm guessing around 8-10 feet, not sure about weight, but probably tons.
Wooow. This Electric motor more 110 years old. Very amazing starting and Spinning up Sound.❤👌👍👍Please more making such videos.
Looks like a synchronous motor. I rebuilt motors similar to that one back in the 70s and 80s at GE. the oldest one I think was built in the 1930s. It makes me glad to see an old motor like that one being rebuilt!
Looks like a slip-ring induction motor or a repulsion motor
Piece of art! SUPERB SOUND!
Cool video! Seen many of these in the New Orleans pumping stations. I have a 60HP Allis Chalmers wound rotor motor that I will be refurbishing and running soon!
Way more exciting than the new digital era .....wow
Ran into a few of these up in New England while helping out a cement plant, pretty cool motors!
It starts up so fast!
Edmund Osborne very large diameter of the rotor and most likely no load
Also 6000+ volts helps.
Holy shit... 1915 and so smooth!
AWESOME MOTOR!!! Just a Beautiful running motor!
Let’s keep it going for another 105 years.
It would be very expensive to replace, and wouldn’t last near as long.
Yup, no fast enough talking salesman and no dumb f*** consulting engineer who has been duped.
The replacement would be from China and be done in 5 years.
With modern motors you have the choice of what you want. They can just as easily last 100 Years as this, while being smaller and more efficient. But the cost of upgrading is just not worth it as those old pumps do their job already good enough.
Mechanical ART
btw 750 hp at 116 rpm equates to about 34,000 lb ft of torque.
Wow
WTF THATS REALLY ALOT
Love the startup sound
How beautiful! What a stunning noise. I can hear Sulu now... “warp factor one..!”
I lived in north mississippi and operated the maintenance department for the fedex hub in olive branch. We used tristate electric for MCE, the tech told me about their work on this pumping station. pretty neat to see it on vid.
The starting sound is awesome.
Her: What do you have under the hood?
Me:
The sound of this motor is amazing, loving it!
As a field service technician for large reciprocating air compressors I’ve worked on compressors driven by these types of motors, most were in the 450/800 hp range and operated on either 2300 or 4160 volts.
What kind of equipment would need that kind of CFM?
@@arbit3r during the heyday of this type of equipment glass making plants used this as well as steel making operations.
@@arbit3r
Quincy Shipbuilding - General Dynamics had a pair of them to run the facility's air tools for 3000+ workers.
If it's been running since 1915 and doing the job of pumping, then it's proved it's suitability, reliability and longevity. It would be stupid to replace it.
Now THAT is a work of art !!
what a beast of a motor
Sounds just like dilithium crystals charging phaser banks.
This is what is behind some of those panels in engineering.
The backup is hamsters on a really big wheel.
Actually I think it sounds like the Great Machine in Forbidden Planet!
if you placed a roach into the moving it might be transported into another dimension too!!
That’s a thing of beauty!
Such a beautiful start up sound, up until the repeating, altering humming
That’s the sound of the Machine Age right there.
This is possibly the sexiest flywheel and motor sound on youtube
Amazing how something so old can continue to work as intended for over 100 years and maintain its right to operate despite new technology appearing in the decades since it was built. I guess there’s only so much you can improve upon the electric motor.
Planned obsolescence wasn’t part of engineering doctrine then. I have printing presses 80 years old that work perfectly well. I still run them.
Electrical motors have worked the same way since they were invented by Tesla…they will never change the way they are built
@@FiresidePrinting "Planned obsolescence wasn’t part of engineering doctrine then"
Why was that do you think?
Service and maintenance, kids, it makes magic.
@@jstone1211 I suppose modern motors may have higher efficiency, but they have it at a cost of a nigh-impossible maintenance.
The guy was so confident of his team's work he put his face close up to the danger at the beginning 😮
It may be a bit noisy when running but the start up sounds so cool.
That sounds so damned nice.
When you sleep but you forgot to turn off your laptop:
Have smaller ones at my work, 300 hp pumps are from 1919 still work like a charm to give farmers the water they need every year
Beatiful. Runs so smooth. No power electronics, just loud clunky power relays.
Me:Awesome engineering
Also me: I want to put a stick in it
this is more beautiful than what I realize
Thanx for the detailed Description.!!👌👌
That's a thing of beauty...
Cute and funny how the two guys leaned in to look at it really close. lol. :)
Not A lot of people left that have the skill and craftsmanship to wind a motor like that
FANTASTIC MOTOR TOURBINE
That sound is.. somewhat eerie lol
Built to last and not throw away garbage like most things made nowadays
Man this video should have been longer!
To think that they have that already in 1915 is insane.
I think the motor concept was already more or less perfected, my feeling is that it's more to do with getting the electricity to power it. Electricity generation was not really widespread back then.
That's an awesome Engine!!!
HAS BEEN RUNNING PERFECTLY SINCE 1915, LOOKS AND SOUNDS ABSOLUTELY STUNNING... UNFORTUNATELY THE HSE HAVE TURNED UP... WE NEED HANDRAILS, KICK BOARDS, SAFETY GLASS, SAFE WALKWAYS CLEARLY PAINTED ON THE FLOORS, 3,657 SAFETY AWARENESS SIGNS ERRECTED, BLAR BLAR BLAR BLAR BLAR BLAR BLAR. 😭😭😭, 🤣🤣🤣... A CREDIT TO THE WORKFORCE, WELL DONE
This motor, while being over a 100 years old, is still actively used to save lives. Personally, I think that is neat considering that this is prime for preservation, but instead just keeps going serving it's original purpose. That is a testament to it's builders and those who maintain it.
Best looking casino ive ever seen 10/10
Nice and smooth. A electromechanical masterpiece right there. Seems like it’s not quite ramped up nor is there any obvious evidence of a VFD. Wonder what rpm it’s running at ?
@Ben T. sounded like they are connecting the coils in one configuration on startup, then rotating through a number of configurations until settling on the ”full speed” configuration. Each of those clicks changes the configuration.
@@veikkoimmonen7300 Yes, when the guy at the control panel switches it on you can hear what sounds like a few individual contactors close in a timed sequence.
Rotor resistance starter on those slip rings that gradually shorts out
@@edwardvickers5506 awesome, thanks for the post! I can hear it now, 5 step rotor resistance starter. What a cool idea. So primitive yet effective too. There’s something to be said for old school tech.
thanks for this video, we also love electric motors
czcams.com/video/m1uGtfEqkQM/video.html
Times when things were made to last.
I LIVE HERE IN MEMPHIS AND FISH THE WOLF RIVER ALL THE TIME.
I was working on a job in the mid 80's that rebuilt one of these, might have been a little larger. They wanted to bump it to make sure it was going to run in the correct direction. When they hit the button, the motor growled, and nearly all of the big ceiling lights went out before slowly coming back on. About 10 minutes later they got a call from the power company who promptly bitched them out for not warning them of what they were going to do. It put a huge draw on the grid in the area.
TFW you use enough electricity to power 500 homes.
I’m surprised health and safety allowed them to reinstate that . Great to see it working .
If you fail to notice a 3 meters circumstance wheel spinning, you deserve everything that’s coming to you... health and safety are among the reasons good technology and devices have been turned into shit design and devices made to fail and be thrown away... like we do with cars...
@@ahritomic5185 the trouble is that these days , people are taught that other people are responsible for their actions . You would think that common sense would prevail , but sadly not
Notice the raised lip around the outside. You would have to lean in pretty far or have fallen inside of it to touch the rotor. There is no "casually bumping into it". This combined with the area being off limits to the layfolk means it's pretty safe.
IDK why but I associate the sound of that motor with a factory, like, just a generic factory making random stuff. When that thing hummed to life I was like "huh, I wonder if this is a factory" xD
the motor gave birth to steampunk
More like electropunk
I wanna say that steampunk gave birth to the modern motor. Not the other way around, but that’s just me.
@@rhsking05 you're right. i have to agree
The sound reminds me of portal 2 when pulling the lever to turn on the different gels
Imagine getting caught in that ouch 🤕
you wouldn't feel a thing, it has like 40000 nm of torque :P
@@ViprazDesigns seriously, I didn’t know that.
You would die
@@HVACR_LIFE yeah the physics going in there will definitely take something off, if not completely obliterate.
Spectacular!
Imagine the joy they felt on the first start in 1915!
You had the advantage of knowing it already worked. Nice job!
How many Amps does it take to make that wonderful sound?
I agree with others that was far too short, 15 mins wouldn't have been too long, I had to watch it twice. 😁
fantastic motor generator wow
Wow did that thing come up to synch so easily!
The fact that an electric motor in a car makes almost the same power as this is absurd. Crazy how technology moves.
vintage looks fancy
The amount of torque to get that thing moving so fast...
no offense, but i've seen old industrial diesel engines which can gain speed as fast as this motor
This thing will outlast me and my kids and their future kids.
What a sound 😍😍
Stargate. Walk through it and you instantly get transported to another world.
The other world must be heaven in this case.
I'm sure there's a video on LiveLeak of someone going through it
Don't gates usually not have rotors?
that startup sound is the stuff of nightmares
Reminds me of Space Mountain at Magic Kingdom! :)
When the movement of the engineers is also in sync
Very, very, very cool
If anyone is wondering why I became a mechanical engineer, this is why
That little voice in the back of my head: "stick your arm in it"
So this supposedly 105-year-old machine runs smoothly whilst a $1500 iPhone dropped on a super soft carpet get its screen shattered into millions of pieces. God damn, don't know which one of those two is more impressive.
Everything built today is a POS.
guys will look at this and be like hell yeah brother
great video folks!
That was a very quick startup compared to its weight!
Literally all Half-Life machinery sounds from Lambda Complex IRL.
The sound it made was so familiar. After a few minutes of trying to figure out where I had heard it I figured it out! From Jurassic park, lost world. The scene where the T-rex comes out of the boat..the doors kept opening and closing and made this sound.
CZcams keeps recommending me vids of big motors
why cant the new stuff sound this cool
czcams.com/video/vWwiLOdkCgc/video.html
THE BIGGEST MOTOR VERY FASTER WOW AMAZING
Learn english
Is it synchronous or induction
Induction
@@typedef_ I don't think it is, it has a wound rotor and stator, and brushes
Synchronous , Wikipedia
@@elektro9564 Yes, it has a wound rotor and stator and brushes just like you said, but if you look carefully, there are 3 brushes. If it were a synchronous motor, only 2 brushes would have been needed, as you need DC for rotor excitation in such a setup. Also, this motor could have been a synchronous one only if the startup was made using the motor in an "induction" configuration and switching it to "synchronous" after reaching nominal speed (this was the only way to start synch motors 100 years ago). But again at 0:00 you can clearly see two sets of 3 wires each running down the rotor spokes representing the start and end of each of the 3 windings in the rotor. This is an induction configuration.
EDIT: I just read an article on "jay industrial" and it says that this is a "100-year-old 750HP Allis Chalmers 62-pole wound rotor induction motor".