Oh come on, I'm stuck yet again in the electric motor start-up corner of youtube. And your videos make it worth it! :) The attention to detail is awesome. Thank you for such content!
@@MenzelMotors Diese Subkultur ist schon wohl etabliert, wenn auch sehr versteckt. Persönlich finde ich den hier immer noch am besten: th-cam.com/video/pdSKT_8OfKg/w-d-xo.html
Fun fact: Even a very powerful motor spinning without a load takes very little energy to run as the reverse voltage generated by the coils cutting the magnetic field cancels out the supply voltage. The same is true for generators as well. If you place an electrical load on a generator, the shaft gets harder to turn. P.S. The youtube algorithm is weird.
The sound of power and a lot of vindicated engineers. Beautiful machine. It's crazy to think that we went from barely harnessing fire to 3-megawatt engines.
Thank you for your attention. The 3500 Volts is the single line voltage, the main voltage is 6000 Volts. Full load current is 380 Amps, the 30 Amps is the no load current.
@@MenzelMotors, I find it strange that running it without load would consume that much power. Does it really require nearly 300 kW worth of cooling in that situation? I assume all that power gets turned into heat. I could run that for two and a half minutes to heat my apartment for a day.
@@seriouscat2231 I'd assume that the currents are the apparent currents, not the real currents. Hence, a portion of that current isn't doing actual work but is merely being circulated (= reactive current). en.wikipedia.org/wiki/AC_power#Power_factor may be of help to understand.
Reactive current is wasted somewhere eventually. So you are suggesting that that is not the actual power it draws, but only something that goes back and forth between (capacitors in) the controller and (coils in) the motor?
I remember the days before semi conductors, all done by gradually shorting out large resistors. The smell and the shimering above the panels are something I will always remember.
Thanks for sharing that memory! It's fascinating to hear about the early days of technology. The unique experiences and sensory details, like the smell and shimmering effects, really highlight how far we've come in electronics. What’s your favorite memory from that time?
Thanks for the upload. You may be interested to know that I saw the DOL test start of a 5 MW, 6 kV squirrel cage motor for a power plant . It took only 4 seconds to accelerate to rated speed 1492 rpm Line voltage sag was 22%. Motor function was to drive a condensate pump
Thank you for your comment and for sharing your experiences. We start the motor up with a starting drive on a slow ramp. The DOL start with full voltage and frequency with 4 seconds is realistic. In test field we start much slower to identify any potential problem and being able to switch off.
@@MenzelMotors Of course, testing and measuring procedures for a large, custom made motors ought to be very throughly conducted. It's been while back when I witnessed the 5 MW motor DOL start, and I guess they also had a soft starter module for it. However, in the case of emergency ,in a nuclear power plant it should be started as quickly as possible. Beautiful big motors You manufacture. Shocked to see 1.8 MW, 690 V squirrel cage one 👍
We used similar sized motors at the nuke power plant I worked at as condensate and feed pump motors. 4 in a bank x 2 banks. I don't remember for sure, but I think they were 12KV and 6K HP. They were vertically mounted with the big multistage pumps at the bottom. I was standing next to one when they started it. (My first time.) Scared the crap out of me...and I knew what to expect!
I never figured which part of the motor actually resonates to create that typical kinda howling sound you get when you switch on big motors and their inertia keeps them from ramping up quickly. The video reminded me again to maybe look into that again, random questions from the back of the head popping up again :)
There are three typical sources of electric motor sound: - motor ventilation (increases with the speed) - magnetisation (not linear to the speed) - resonance during start up - can appear on any speed in between, mostly interaction with the bedplate
MENZEL MOTORS Thank you, that makes sense, since the sound is present right after power on it must be a combination magnetisation and the baseplate resonance. That typical ventilation noise is easy to distiguish from them.
This video reminds me my classes of "electric machines" all about electric motors in technical high school Thank you for uploading this Greetings from Argentina
If that would not be perfectly balanced that axle would break through the metal casing like nothing and then hit and kill everything in its path! The level of engineering and precision is absolutely staggering! And in this case you really need every component to work perfectly round the clock.
You are right. In this field of engineering, every millimeter must be precisely calculated and produced. Friction and thermal management as well. That is why we test our performance data in our own test field and can proudly claim that our company has been perfecting this know-how for decades. Such medium voltage motors and high voltage motors perform their work mostly under severe conditions. We thank you for your comment and are pleased that you like the work of our employees in the planning and factory floor.
It is impressive and fulfilling at the same time. It is also always nice to see the purpose of the applications. Hospitals, pumping stations, hydroelectric power plants. This is our infrastructure for life.
It says access for authorized persons only. But if our customers want, they can even be present during the check of their motors. For this purpose, an appropriately sound-protected and heated visitor cabin has been integrated into our motor test facility in Berlin, Germany.
Many thanks to our community for over 1280 likes on this video. On October 17th at 1 p.m. a new Motor Start Video will be released for you. A yellow star ;-) ... his name is "1.7 MW megawatt (~ 2280 hp) - big electric motor start".
We hope you will like him ... th-cam.com/video/XHBL28xD6_k/w-d-xo.html ... a few ideas and suggestions from this chat flowed in there ... we look forward to further suggestions from the community
... some nice things will follow, please comment on new videos and tell us what you want to see, stay in contact with us and we will see what is possible ...
Ein interessanter Prozess, aber wie wird der Elektromotor gekühlt? Ich teste Tauchelektromotoren in unserem Werk in Russland. Wir pumpen sie mit Öl für Tauchelektromotoren
Ein Kühler wird oben aufgesetzt. Die Kühlart entscheidet sich nach der Anwendung. Wenn Sie mehr über die verschiedenen Motorkühlarten unserer Schleifringläufermotoren wissen möchten, lade ich Sie auf unsere Website ein: www.menzel-motors.com/de/schleifringlaeufer/
When I was at GE for many years, we rebuilt many, many motors just like that one. The machine shop would re-babbit the bearings. Our experience with the motor shown, would be hermetic motors used in nuclear power plants, to provide cooling in the reactor building itself
Thank you for sharing your experience. These completely enclosed motors are very common outside North America. It seems that in North America they use a lot of WPII cooled motors in heavy industry.
Variable frequency controller seems popular with big motors since it allows the magnetic field to rotate in the stator slowly at first and the rotor can catch up. Then as the rotor picks up speed, increase the frequency on the stator coils.
Thanks for your good question! For load tests we couple the test motor with an asynchronous generator. The asynchronous generator is feeding a VFD in breaking (Q4) mode. By setting the breaking frequency and load we can go to exactly the load point we want to go in regards of power and speed.
Thank you! The rated frequency is 50 Hz. 90 seconds is just the starting time from 0 to 50 Hz for this 3000 kW motor. Regarding power / weight: what is the speed of your machines? The lower the speed, the higher the torque and weight - with same power.
That's huge..........the largest motor I've hooked up was 15,000 HP. It was a vertical hollow-shaft that drove a turbine water pump. It ran at 13.8 KV and started with reactors. 4 pole, if I remember; it was a long time ago. That one was just a baby compared to this one.......
Thank you for your question regarding motor prformance data. These are as follows: Motor type: Slip-ring motor Rated power: 3000 kW Rated voltage: 10500 V Rated frequency: 50 Hz Number of poles: 6 Rated speed: 993 min-1 Type of construction: IM 1001 (IM B 3) Frame size / Shaft height: 630 mm Protection class: IP 54 Cooling type: IC 81W Weight: 13420 kg
3 MW is a quite typical power for a fan for a small power station or a cement plant. In large coal fired power stations up to 10 MW fan powers are quite usual.
So what is the red disk inside the housing? Cooling fan? Can't believe it had that much run out. Had to be 1/4". Just looks like a catastrophic failure in the making.
@@MenzelMotors I will if I do then :) and meanwhile if you like you can check out my latest song I just submit on my music channel Powertoast music ^__^ and maybe follow my work there as well
Wholly max! This is just what I was looking for! I found a Saturn V blastoff video with monster rocket takeoff sound and I needed a spinning whining sound to mix together as sound FX for my UFO video I am designing! So this startup test sound is exactly what I need! Thx mucho!
What is the torque output of this motor? The gas turbine in my tank. Has trouble getting it up and through. The sand dunes and mountains. So I am thinking possibly electric?
@@MenzelMotors That amount of torque fits the bill just nicely. Now all I need is the battery pack. And the rest of what I need. And I'll be off in my tank climbing hills and mountains. And who knows mabe even conquering the world!!!
There are three typical sources of electric motor sound: - motor ventilation (increases with the speed) - magnetisation (not linear to the speed) - resonance during start up - can appear on any speed in between, mostly interaction with the bedplate
This makes me think of them massive hard drives from the 80s I took apart and would watch and listen to them spoil up back in the early 90s when they were outdated... Your motor is a tad bit bigger though. Great video.
This is a slip ring motor, so the stator is just switched direct on-line and the rotor is started up by a resistor starter. But you can also start this and larger motor sizes direct on line - you just need the proper grid! These grid calculations and voltage drop calculations we offer for our customers to ensure the best suitable solution.
Geht ihr da bei der Anlaufphase gleich mit 50 Herz drauf? Weil der Rotor braucht ja schon etwas bis er auf Drehzahl kommt - da könnte ich mir Vorstellen, das man da einiges verliert - also dass man den (falls das bei der Spannung und Stromstärke vernünftig geht) dann das Drehfeld also Frequenz langsam erhöht
Do you have dynamotor capability to measure motor performance under load? It would be interesting to measure environmental sound levels loaded down versus unloaded.
Thank you for your question. We can check or measure the motor under load. However, the ambient noise of the machine is measured at no load (too many disturbing influences, e.g. external fan of our load machine).
Dear Sir, grease lubricated bearings are a much lower in cost and standard articles, which do not require big lubrication systems - but if the design is suitable and grease quality good there should be no issues from our experience.
285 A an Strom ist schon nicht wenig und 10500 V alles andere als eine geringe Spannung ich frage mich wo liegen die Grenzen des machbaren bei Elektromotoren ab wann wird es mit der spannung kritisch bzw ist noch machbar und wie hoch darf der maximale Strom sein der dann noch beherschbar ist , das würde mich brennend interresieren ob es so einen Motor gibt ist zweitrangig da es mir um die Technische machbare Grenze geht , seit ich meine RC Boote von verbrenner auf Elektro umgebaut habe bin ich nur noch begeistert was mit Strom machbar ist die performanc ist einfach Wahnsinnig gesteigert worden und ich kann mich jederzeit um entscheiden ob ich mehr geschwindigkeit haben möchte ode einfach längeren Fahrspaß haben möchte und muss dafür nur den Propeller wechsen bzw den akku wechseln bzw umstöpseln von 3 Zellig zwei Akkus Paralel oder die beiden in reihe schalten und so mit doppelter Spannung zu fahren was dann zu aberwitzigen Geschwindigkeiten führt mit eben über 100Km/h oder um 40 Km/h mit sehr langen fahrzeiten von über 30 min bis zu 2 stunden je nach Gasstellung und auf maximale Geschwindigkeit getrimmt um 5 min fahrzeiten wobei Top speed nur wenige Sekunden anliegen
This is part of the customers installation - as it must fit to their SCADA System. We provide the mounting threads for various different measurement equipment to be connected - but it absoluty varies from customer to customer.
@@MenzelMotors oh so this could have several uses. I thought those kinds of purpose needs some custom motors but yeah. Thanks for response sir. I'm also curious how much does it cost? Lol it's massive and angry
The cost of these motors really depend on the configuration and customization. Just like when buying a new house or car. We are specialized in the manufacturing of custom electric motors, so there is no standard price, I am afraid.
@@MenzelMotors thank you gain for response it looks like you guys are responsible and doing very well and those custom products need some great engineers and lots of maths. Also even your youtube channel responds to questios.
@terence murphy Would you like to accompany us with your questions, comments and tips? Technical questions and suggestions form a community that we would like to live with.
Ja, genau! 3 Megawatt (MW) entsprechen 3000 Kilowatt (kW), da 1 Megawatt gleich 1000 Kilowatt ist. Wenn du also von 3 Megawatt sprichst, kannst du das auch als 3000 kW ausdrücken.
That's impressive! A freewheeling system at 180 kW can offer great efficiency and performance, especially in applications where energy recovery is important. What specific setup or application are you referring to? It sounds like it could be quite powerful!
Тестовый звук бывает у любителей музыки, акустики, HI-FI HI-END аппаратуры. Правильный перевод в данном случае должен быть "звук при тестовом запуске".
Les moteurs électriques de cette taille sont utilisés, par exemple, comme l'actionnement principaux dans les usines de ciment ou comme moteurs de compresseur ou de ventilateur.
@@MenzelMotors ok Merci pour l'info. Par contre j'imagine que côté électricité ça doit demander un abonnement spécifique comme une arrivée direct via haute tensions avec son poste de transformation. Ça doit être sympa à visiter des installations comme ça. Merci en tout cas...👍👍👍
Thanks for your question. Since this is a slip ring motor the starting current is very low and influenced by the starter. Typically these slip ring motors can start up with 2 times rated current. A similar squirrel cage motor would require approx. 6 times rated current during start-up.
Thank you for asking. This noise is called „magnetic screaming” and happens during startup phase - when the slip is still very high. On rated speed this reduces significantly.
@MenzelMotors oh right so when it's spinning at the same rate the noise is more idle. But if it was to act like a traction motor for a train let's say, it would continue to "scream" until it hit the desired speed ?
The windings are carrying the current - and induce magnetic field due to laminations. The windings themselves would not create the noise, it is the system of windings in stator laminations and a rotor with slip.
@MenzelMotors that makes sense, I guess the physics all come together with the infrustructure shape to create the sound. And I guess by laminations , you mean the little discs they stick together to form the entire rotor? Or stator.
Please tell me there are others who searched for Electric Motor Sounds XD
We for example. ;-)
I did for electric motor start
Yeah man what's up, I search this all the time
Yeah dude but come on it.s nice yiu fill the power yo
In his full power he can push the hole africa lol
Oh come on, I'm stuck yet again in the electric motor start-up corner of youtube.
And your videos make it worth it! :) The attention to detail is awesome. Thank you for such content!
Thank you for that kind of comment! We really appreciate it.
Shall we upload another video with electric motor sound?
Yeah, many more please
yees
Let's create our own subculture ... "People who love electric motors!"
@@MenzelMotors Diese Subkultur ist schon wohl etabliert, wenn auch sehr versteckt. Persönlich finde ich den hier immer noch am besten: th-cam.com/video/pdSKT_8OfKg/w-d-xo.html
upload big asynchronous motors
Fun fact: Even a very powerful motor spinning without a load takes very little energy to run as the reverse voltage generated by the coils cutting the magnetic field cancels out the supply voltage. The same is true for generators as well. If you place an electrical load on a generator, the shaft gets harder to turn.
P.S. The youtube algorithm is weird.
at no load we only need to supply the magnetic field, so a very low current is enough.
omg- you're a genius! I learned that myself at 8 yrs old and it is common sense
@@Tmhen it must be sad if that's you're main flex sorry to hear that
@@Tmhen you must be real fun to be around.
why r u people crying about my comment?
The sound of power and a lot of vindicated engineers. Beautiful machine. It's crazy to think that we went from barely harnessing fire to 3-megawatt engines.
Your are right. And this all happened in a very short time. Cheers to all engineers and brains out there
Yes, that was a long day.
you realise aliens gift us tech slowly over time we dont invent jack diddly
Ерунда это все обычный электродвигатель технологии столетней давности
@@rrrohan2288тут ничего инопланетного
I was looking at the Amps thinking "30 Amps? Not bad for how large that motor is." But then I realized its running with 3,500 Volts
Thank you for your attention. The 3500 Volts is the single line voltage, the main voltage is 6000 Volts. Full load current is 380 Amps, the 30 Amps is the no load current.
@@MenzelMotors that's insane- (as in awesome)
@@MenzelMotors, I find it strange that running it without load would consume that much power. Does it really require nearly 300 kW worth of cooling in that situation? I assume all that power gets turned into heat. I could run that for two and a half minutes to heat my apartment for a day.
@@seriouscat2231 I'd assume that the currents are the apparent currents, not the real currents. Hence, a portion of that current isn't doing actual work but is merely being circulated (= reactive current). en.wikipedia.org/wiki/AC_power#Power_factor may be of help to understand.
Reactive current is wasted somewhere eventually. So you are suggesting that that is not the actual power it draws, but only something that goes back and forth between (capacitors in) the controller and (coils in) the motor?
Very smooth running, should be available just in time for Christmas.
Shall we wrap it up nicely?
I remember the days before semi conductors, all done by gradually shorting out large resistors. The smell and the shimering above the panels are something I will always remember.
Thanks for sharing that memory! It's fascinating to hear about the early days of technology. The unique experiences and sensory details, like the smell and shimmering effects, really highlight how far we've come in electronics. What’s your favorite memory from that time?
Thanks for the upload. You may be interested to know that I saw the DOL test start of a 5 MW, 6 kV squirrel cage motor for a power plant . It took only 4 seconds to accelerate to rated speed 1492 rpm Line voltage sag was 22%. Motor function was to drive a condensate pump
Thank you for your comment and for sharing your experiences. We start the motor up with a starting drive on a slow ramp. The DOL start with full voltage and frequency with 4 seconds is realistic. In test field we start much slower to identify any potential problem and being able to switch off.
@@MenzelMotors Of course, testing and measuring procedures for a large, custom made motors ought to be very throughly conducted. It's been while back when I witnessed the 5 MW motor DOL start, and I guess they also had a soft starter module for it. However, in the case of emergency ,in a nuclear power plant it should be started as quickly as possible. Beautiful big motors You manufacture. Shocked to see 1.8 MW, 690 V squirrel cage one 👍
This takes me back to my days in the mining industry where we had a 3900kW compressor motor. Started using a Korndoffer starter.
Thank you for your comment. We have been delivering many of our motors to the mining industry, for example in South America.
The sound of electric motors and combustion engine is what terrifies me during my childhood times and now its the opposite
Thanks for your comment. It's nice to hear that you like the motor sound.
So now the sound of non-electric motors and non-combustion engines is what comforts you ? :P
Air blowing out of big dark vents and big fans still is terrifying to me.
Aniruth Dinesh So I’m not the only one
@@i.i.iiii.i.i Stirling engines
We used similar sized motors at the nuke power plant I worked at as condensate and feed pump motors. 4 in a bank x 2 banks. I don't remember for sure, but I think they were 12KV and 6K HP. They were vertically mounted with the big multistage pumps at the bottom. I was standing next to one when they started it. (My first time.) Scared the crap out of me...and I knew what to expect!
Thank you very much for sharing your interesting experiences!
nobody:
TH-cam: *recommends big electric motors*
Thank you.
Bro I love watching electric motors, algorithm is on point
Hello my fellow furry.
I like your pfp c:
@@vectorwuffy yours is cute too!
*Startuje jak rakieta ale to super* 😎👍
That's an incredible amount of power (1 hp is about 746 watts) so this is over 4,000 hp!
Thanks for your comment. Yes, we love big and powerful motors.
this sound feels good somehow
Thank you. We are happy to hear that you are enjoying the video.
Loved how this channel keeps on commenting on similar videos.
Thanks.
I never figured which part of the motor actually resonates to create that typical kinda howling sound you get when you switch on big motors and their inertia keeps them from ramping up quickly. The video reminded me again to maybe look into that again, random questions from the back of the head popping up again :)
There are three typical sources of electric motor sound:
- motor ventilation (increases with the speed)
- magnetisation (not linear to the speed)
- resonance during start up - can appear on any speed in between, mostly interaction with the bedplate
MENZEL MOTORS Thank you, that makes sense, since the sound is present right after power on it must be a combination magnetisation and the baseplate resonance. That typical ventilation noise is easy to distiguish from them.
You can definitely post more videos of electric motors spinning, the sound is beautiful lol
Glad you like them. Yes, we will produce some more.
That is a LOT of rotational mass! I definitely wouldn't want to be anywhere near that thing if something let go...
Thanks for your nice comment ......and thanks you for your concern.
But you don't have to, because the motors are anchored.
Had this been audio only, would have (almost) sworn it was a gas turbine I was hearing star up.
Thansk for your comment. We are happy that you enjoy the motor sound
This video reminds me my classes of "electric machines" all about electric motors in technical high school
Thank you for uploading this
Greetings from Argentina
lovely greetings back
Love that sound!
Thank you
This started up remarkably smooth/silent
We have some almost 30year old 10500V 163A fans that start up pretty violently in comparison :D
Thank you for your comment and for sharing your experience.
If you need a new motor for these, just let us know. We are happy to help!
Like this ?
th-cam.com/video/Eu26QvQzoOs/w-d-xo.html
If that would not be perfectly balanced that axle would break through the metal casing like nothing and then hit and kill everything in its path! The level of engineering and precision is absolutely staggering! And in this case you really need every component to work perfectly round the clock.
You are right. In this field of engineering, every millimeter must be precisely calculated and produced. Friction and thermal management as well. That is why we test our performance data in our own test field and can proudly claim that our company has been perfecting this know-how for decades. Such medium voltage motors and high voltage motors perform their work mostly under severe conditions. We thank you for your comment and are pleased that you like the work of our employees in the planning and factory floor.
Can I know how much it cost loaded test for 11 kv 750 kw and 850 kw motor??
Working with these must give such a half life vibe 🐸
It is impressive and fulfilling at the same time. It is also always nice to see the purpose of the applications. Hospitals, pumping stations, hydroelectric power plants. This is our infrastructure for life.
Love that sound. Like a plane engine
Glad you like it. This is what it sounds like almost every day at our test field.
Jet engine literally a kind of motor
It sounds like a jet engine, so cool! This is why engineering is awesome..we can achieve such great things!
We totally agree. Engineering is like magic.
Thank you for your comment!
So, about all the warning notices on the barrier... any of them say "keep out"?
It says access for authorized persons only. But if our customers want, they can even be present during the check of their motors. For this purpose, an appropriately sound-protected and heated visitor cabin has been integrated into our motor test facility in Berlin, Germany.
"Keep Out"....Sounds like an INVITATION to me!😎
How about record shutdown next time please?🙏🥺
Many thanks to our community for over 1280 likes on this video. On October 17th at 1 p.m. a new Motor Start Video will be released for you. A yellow star ;-) ... his name is "1.7 MW megawatt (~ 2280 hp) - big electric motor start".
We hope you will like him ... th-cam.com/video/XHBL28xD6_k/w-d-xo.html ... a few ideas and suggestions from this chat flowed in there ... we look forward to further suggestions from the community
... some nice things will follow, please comment on new videos and tell us what you want to see, stay in contact with us and we will see what is possible ...
Ein interessanter Prozess, aber wie wird der Elektromotor gekühlt? Ich teste Tauchelektromotoren in unserem Werk in Russland. Wir pumpen sie mit Öl für Tauchelektromotoren
Ein Kühler wird oben aufgesetzt. Die Kühlart entscheidet sich nach der Anwendung. Wenn Sie mehr über die verschiedenen Motorkühlarten unserer Schleifringläufermotoren wissen möchten, lade ich Sie auf unsere Website ein: www.menzel-motors.com/de/schleifringlaeufer/
When I was at GE for many years, we rebuilt many, many motors just like that one. The machine shop would re-babbit the bearings. Our experience with the motor shown, would be hermetic motors used in nuclear power plants, to provide cooling in the reactor building itself
Thank you for sharing your experience. These completely enclosed motors are very common outside North America. It seems that in North America they use a lot of WPII cooled motors in heavy industry.
Variable frequency controller seems popular with big motors since it allows the magnetic field to rotate in the stator slowly at first and the rotor can catch up. Then as the rotor picks up speed, increase the frequency on the stator coils.
Thank you for your comment. Yes, a frequency converter not only allows to regulate the speed of a motors, but also saves energy.
How do you put load on them to test maximal power output?
Thanks for your good question!
For load tests we couple the test motor with an asynchronous generator. The asynchronous generator is feeding a VFD in breaking (Q4) mode. By setting the breaking frequency and load we can go to exactly the load point we want to go in regards of power and speed.
Must be on a soft start or ramp up drive? We have some big 2000 and 3000 hp 4160v motors that either start with full voltage or close to it.
Thanks for your sharing your expereinces. In our motor test field this motor is started by a VFD.
I wonder if this would start up at 400V as well :)
Was this running in star or delta?
No, it would not start up at 400 Volt, as this would be only 7 % of rated voltage, that is not enough.
Big boy motor and test stand. 10,500 VAC. Primary voltage. What voltages and current level can this test stand supply?
Glad you like it! You can find detailed information on our test stand on our webiste www.menzel-motors.com/motor-test-field/
@@MenzelMotors Thank you going to look now.
Funny to see that you guys are just 15min by foot away from where I live.
The world is small. Nice that you found us.
I had a neat 100 year old Century Repulsion-start AC motor. Friends and family Could never understand why I enjoyed starting so much.
It's a passion ;-)
Interviewer: How does an electric motor start?
Me: 0:30
Target group: ... sounds good ;-)
@@MenzelMotors VFD or just a voltage ramp?
Magic! Why are 3MWt engines installed on my pumps, which are larger and 2 times heavier - weighing 24 tons? What's the catch? What frequency is 90Hz?
Thank you!
The rated frequency is 50 Hz. 90 seconds is just the starting time from 0 to 50 Hz for this 3000 kW motor.
Regarding power / weight: what is the speed of your machines? The lower the speed, the higher the torque and weight - with same power.
That's huge..........the largest motor I've hooked up was 15,000 HP. It was a vertical hollow-shaft that drove a turbine water pump. It ran at 13.8 KV and started with reactors. 4 pole, if I remember; it was a long time ago.
That one was just a baby compared to this one.......
Thanks for your comment. We love these details. If you'd like, we'd love to see more of it in our other videos.
Qual e a ficha técnica desse motor? Eu amo motor elétrico, principalmente quando ele cai aumentando a velocidade, têm um som lindo
Sounds like a jet😂
Yes indeed. Thank you for your comment.
Voltage? Starting system? Motor type? Looks like a wound rotor of some type?
Thank you for your question regarding motor prformance data. These are as follows:
Motor type: Slip-ring motor
Rated power: 3000 kW
Rated voltage: 10500 V
Rated frequency: 50 Hz
Number of poles: 6
Rated speed: 993 min-1
Type of construction: IM 1001 (IM B 3)
Frame size / Shaft height: 630 mm
Protection class: IP 54
Cooling type: IC 81W
Weight: 13420 kg
The very start at low revs sounds almost exactly like an electric train taking off here (Melbourne)
Thank you for sharing thsi information. There is more electric motor sound to come.
Oh wow they actually do sound like the melbourne trains.
What kind of compressor or fan wound use this motor? I mean, a 180W motor can power a big fan. Most household fans are in the 20-60W range.
3 MW is a quite typical power for a fan for a small power station or a cement plant. In large coal fired power stations up to 10 MW fan powers are quite usual.
Why the hell i have sudden urge to put a hand in there :O
Because you're dumb
Yes, it's fascinating and tempting.
So what is the red disk inside the housing? Cooling fan? Can't believe it had that much run out. Had to be 1/4". Just looks like a catastrophic failure in the making.
Thank you for your comment. Yes, this is the cooling fan. It has nearly no run out at all - just appears optical on video like that.
Will it fit in my Tesla?
I am afraid our motor will make your Tesla quite heavy. This 6-pole slip ring motor has a total weight of 13.5 tons.
That depends on the size of your Tesla ;-). Chuck Norris will probably have one installed next week.
You need a Tesla hummer version
Your tesla might fit in it :)
A pretty humble startup for such a big motor but it sings pretty nicely :)
it's a happy electric motor ... you can add a bass drum to it ;-)
@@MenzelMotors ha ha maybe I should use it in a music track sometime if that is what you want
@@Pulverrostmannen feel free and post the link here
@@MenzelMotors I will if I do then :) and meanwhile if you like you can check out my latest song I just submit on my music channel Powertoast music ^__^ and maybe follow my work there as well
@@Pulverrostmannen I checked your channels before I wrote one of these comments ... ;-)
after 0:29 seconds I keep turning on the big boxes ... crazy
sounds good ;-)
Wholly max! This is just what I was looking for! I found a Saturn V blastoff video with monster rocket takeoff sound and I needed a spinning whining sound to mix together as sound FX for my UFO video I am designing! So this startup test sound is exactly what I need! Thx mucho!
Glad to read that you love our motor start up test sound.
Sounds Like a Turbine But Better.
Thank you for your comment. Our motor test field crew can enjoy this sound almost every day ;-)
What is the torque output of this motor? The gas turbine in my tank. Has trouble getting it up and through. The sand dunes and mountains. So I am thinking possibly electric?
Rated torque is 28850 Nm
@@MenzelMotors That amount of torque fits the bill just nicely. Now all I need is the battery pack. And the rest of what I need. And I'll be off in my tank climbing hills and mountains. And who knows mabe even conquering the world!!!
It's big, but not the biggest; the world's biggest is the 80-megawatt two-pole induction motor made by GE 👍🏻
Thank you for your comment. You are right, this is not the biggest electric motor. It is big, like most of our motors, but there are even bigger ones.
What causes the noise apart from the air moving through the cooling fan and bearings
There are three typical sources of electric motor sound:
- motor ventilation (increases with the speed)
- magnetisation (not linear to the speed)
- resonance during start up - can appear on any speed in between, mostly interaction with the bedplate
This makes me think of them massive hard drives from the 80s I took apart and would watch and listen to them spoil up back in the early 90s when they were outdated... Your motor is a tad bit bigger though. Great video.
Thank you very much. We are happy that you are enjoy watching them!
How is this motor started? You can't just switch it on like a 4 kW AC induction motor, is it started by a inverter, or something else?
This is a slip ring motor, so the stator is just switched direct on-line and the rotor is started up by a resistor starter. But you can also start this and larger motor sizes direct on line - you just need the proper grid! These grid calculations and voltage drop calculations we offer for our customers to ensure the best suitable solution.
Geht ihr da bei der Anlaufphase gleich mit 50 Herz drauf? Weil der Rotor braucht ja schon etwas bis er auf Drehzahl kommt - da könnte ich mir Vorstellen, das man da einiges verliert - also dass man den (falls das bei der Spannung und Stromstärke vernünftig geht) dann das Drehfeld also Frequenz langsam erhöht
Hallo - physikalisch genau richtig! Nein, wir fahren den Motor über eine Sinusquelle von 0 Hz bis auf 50 Hz hoch.
Do you have dynamotor capability to measure motor performance under load? It would be interesting to measure environmental sound levels loaded down versus unloaded.
Thank you for your question. We can check or measure the motor under load. However, the ambient noise of the machine is measured at no load (too many disturbing influences, e.g. external fan of our load machine).
I am guessing that the shaft on this motor is a belt drive?
Thank you very much for your question.
No, it is coupled directly.
Super Teil, mit Gleitlagern und Kurzschluss Schleifkohle👍
Sie kennen sich also aus?
Allerdings kenne ich diese Schleifkohlen eher von Gleichstromaschinen oder Drehstrommotoren mit FU zum Schutz der Lager.
Why do small motors use grease instead of oil ?
Grease causes a lot of bearing problems
Dear Sir, grease lubricated bearings are a much lower in cost and standard articles, which do not require big lubrication systems - but if the design is suitable and grease quality good there should be no issues from our experience.
285 A an Strom ist schon nicht wenig und 10500 V alles andere als eine geringe Spannung ich frage mich wo liegen die Grenzen des machbaren bei Elektromotoren ab wann wird es mit der spannung kritisch bzw ist noch machbar und wie hoch darf der maximale Strom sein der dann noch beherschbar ist , das würde mich brennend interresieren ob es so einen Motor gibt ist zweitrangig da es mir um die Technische machbare Grenze geht , seit ich meine RC Boote von verbrenner auf Elektro umgebaut habe bin ich nur noch begeistert was mit Strom machbar ist die performanc ist einfach Wahnsinnig gesteigert worden und ich kann mich jederzeit um entscheiden ob ich mehr geschwindigkeit haben möchte ode einfach längeren Fahrspaß haben möchte und muss dafür nur den Propeller wechsen bzw den akku wechseln bzw umstöpseln von 3 Zellig zwei Akkus Paralel oder die beiden in reihe schalten und so mit doppelter Spannung zu fahren was dann zu aberwitzigen Geschwindigkeiten führt mit eben über 100Km/h oder um 40 Km/h mit sehr langen fahrzeiten von über 30 min bis zu 2 stunden je nach Gasstellung und auf maximale Geschwindigkeit getrimmt um 5 min fahrzeiten wobei Top speed nur wenige Sekunden anliegen
wow, interessanter und tiefer Einblick, vielen Dank ... lass uns deine gestellten Fragen durch die Community beantworten ... wer möchte etwas sagen?
i love menzel motors
there are soooo soft and useful❤❤
We told him, he now feels a warm hug.
Operator: I'll stay behind the glass to protect myself.
Cameraman: LET'S REC !!!
thanks for your comment
What is the load of the motor ?
Great test clip. This is motor after general overhaul? Looks nice. Are You using Siemens Harmony VFD for powering up?
Thanks for your comment. The equipment from our test field can possibly be seen better in this video. th-cam.com/video/7h5OnJ8fObg/w-d-xo.html
Yes, the motor is after factory overhaul and before painting. We use YASKAWA VFD's.
Große Elektromotore sind schon toll anzuhören.
das stimmt
Is there a SCADA or only analogue meters and data recorder?
This is part of the customers installation - as it must fit to their SCADA System. We provide the mounting threads for various different measurement equipment to be connected - but it absoluty varies from customer to customer.
This is the paradise of Electricians
Yes, it's a passion. Many of our colleagues have been working for us for more than 30 years.
Will this fit in my honda?
Maybe your hondy will fit in there. ;-)
3 MW? Hübsches Spielzeug! XD Was bekommt der an Spannung zu sehen im Nennbetrieb?
Herzlichen Dank! Dieser Schleifringläufermotor hat eine Nennspannung von 10500 V (10,5 kV).
@@MenzelMotors hui. Das ist ne ordentliche Menge.
Damn, it's 2 am and TH-cam recommends me this. Weird, but I like it.
Thanks for your nice comment. From where are you watching us?
@@MenzelMotors Southern Lower Saxony, near Göttingen
Von Götting nach Berlin sind es ca. 350km. Sonst hätte ich gesagt, vielleicht hören Sie uns ja sogar live ;-)
I wish the motors in Tesla’s sounded this dramatic. Love the sounds of these big motors spooling up.
Yes, there is nothing like a decent motor noise.
And what is that motor used for?
Electric motors of this type and size are used, for example, as main drives in cement mills or as compressor or fan motors.
@@MenzelMotors oh so this could have several uses. I thought those kinds of purpose needs some custom motors but yeah. Thanks for response sir. I'm also curious how much does it cost? Lol it's massive and angry
The cost of these motors really depend on the configuration and customization. Just like when buying a new house or car. We are specialized in the manufacturing of custom electric motors, so there is no standard price, I am afraid.
@@MenzelMotors thank you gain for response it looks like you guys are responsible and doing very well and those custom products need some great engineers and lots of maths. Also even your youtube channel responds to questios.
Nice soft start
Thank you very much for you comment.
What is this motor connected to ?
Electric motors of this type and size are used, for example, as main drives in cement mills or as compressor or fan motors.
worked in a GE repair shop for 42yrs, torn down, rebuilt, and tested hundreds of different motor, dynos too!
Good craftsmanship and many years of experience are worth their weight in gold!
@terence murphy Would you like to accompany us with your questions, comments and tips? Technical questions and suggestions form a community that we would like to live with.
Sind das dann eigentlich mit der Einheit kilo 3 Megawatt?
Ja, genau! 3 Megawatt (MW) entsprechen 3000 Kilowatt (kW), da 1 Megawatt gleich 1000 Kilowatt ist. Wenn du also von 3 Megawatt sprichst, kannst du das auch als 3000 kW ausdrücken.
Thats music in my Ear, i love mechanic sounds.....so beautyfull😂
We're glad we made someone happy again.
My missus could do with this in our washing machine. She's done in 2 washing machines in as many years.
With a washing machine with this type of motor she could probably do the laundry for the whole neighbourhood ;-)
Great video! Greetings from Venezuela.
Thank you very much for your nice comment.
Gosh that sounds cool!
We are happy to read that you like the sound of our big electric motors!
Is that motor used to rotate the Earth?
Yes, fasten your seat belt and hold on to the handles!
180kW freewheeling!
Nice.
That's impressive! A freewheeling system at 180 kW can offer great efficiency and performance, especially in applications where energy recovery is important. What specific setup or application are you referring to? It sounds like it could be quite powerful!
Тестовый звук бывает у любителей музыки, акустики, HI-FI HI-END аппаратуры.
Правильный перевод в данном случае должен быть "звук при тестовом запуске".
Спасибо за подсказку. Как вы думаете, нам следует использовать название ... "большой электродвигатель 3000 кВт - звук при тестовом запуске" ...?
What does this motor run?
Electric motors of this type and size are used, for example, to run the main drives in cement mills or as compressor or fan motors.
ah oui la c'est du moteur voila l'engin, quel type d'industrie utilise se modèle la????
Les moteurs électriques de cette taille sont utilisés, par exemple, comme l'actionnement principaux dans les usines de ciment ou comme moteurs de compresseur ou de ventilateur.
@@MenzelMotors ok Merci pour l'info.
Par contre j'imagine que côté électricité ça doit demander un abonnement spécifique comme une arrivée direct via haute tensions avec son poste de transformation.
Ça doit être sympa à visiter des installations comme ça.
Merci en tout cas...👍👍👍
What would happen if I touch the terminals with my bare hands?
I can well understand that you want to touch it. Unfortunately, it is not recommended :-)
What starting current draw on a motor this size and voltage.
Thanks for your question. Since this is a slip ring motor the starting current is very low and influenced by the starter. Typically these slip ring motors can start up with 2 times rated current.
A similar squirrel cage motor would require approx. 6 times rated current during start-up.
what is the use of this big dynamo?
Electric motors of this type and size are used, for example, as main drives in cement mills or as compressor or fan motors.
Love the sound of them motors.
We understand that very well. Thanks for your comment.
How much does it weigh?
This motor has a total weight of approx. 13.5 tons (including cooling system). in the video you see the motor without the cooling unit.
Sounds like a jet engine 😍
that's right
So this motor is over 4000hp?
Thanks for your questions. 3000 kW = 4023 hp
I love the sound it sounds like my washing machine XD
After that, the laundry is guaranteed to be dry and maybe a little bigger. ;-)
Someone tell me, whats responsible for the building up noise that goes from low to high pitch? Is it the motor windings ?
Thank you for asking.
This noise is called „magnetic screaming” and happens during startup phase - when the slip is still very high. On rated speed this reduces significantly.
@MenzelMotors oh right so when it's spinning at the same rate the noise is more idle. But if it was to act like a traction motor for a train let's say, it would continue to "scream" until it hit the desired speed ?
The windings are carrying the current - and induce magnetic field due to laminations.
The windings themselves would not create the noise, it is the system of windings in stator laminations and a rotor with slip.
@MenzelMotors that makes sense, I guess the physics all come together with the infrustructure shape to create the sound. And I guess by laminations , you mean the little discs they stick together to form the entire rotor? Or stator.