more like survival scene in a horror movie. i am actually amazed at how a wind turbine could be a candidate for a horror film. things like being stuck in the tower base because of a fire or over-speed or being trapped in the nacelle until the contorted woman with the open mouth finds you. things like that could be done with wind turbines. (cramped, cozy fluorescent lit structures always have a horror aspect to them)
What could be the reason, is it vibrations due to aerodynamic torque effect of Rotor blades or metal fatigue. Usually all these are simulated during design before commissioning. Wonderful clipping and amazing as always.
If everything is done right, there is no movement or loosening of bolds, because the pre-tightening exceeds the loads through such a test by far. I know some cases where strange things happen, but this is really rare and due to something terribly wrong😉
How do turbines after starting up, synchronising with the grid (generator turning on), keep a constant speed? They may slow down but I didn't hear one speed up. Thought about this after watching for the 100th time "Nordex N60 betreib auf"
Hey, with the N60, the system switches on during acceleration, i.e. without keeping the speed constant. Afterwards, it remains constant at this speed, as this is the mains frequency (50 Hz EU and 60 Hz US). In the case of systems with partial or full converters, the system switches on sooner and then accelerates significantly, which you can hear very well in one of my first videos, I think it was the "V112 startup" or something like that 😊
@@saasch_baasch Thank you very much, I remember the "V112 startup", heard the gen. synchronize with the grid, and after that it sped up. Btw some of these videos I use as ASMR's, hah great sounds. Great videos, keep them up :)))
@@eventhorizon7374 ASMR huh, more like dream fuel, or lucid dream fuel. the only thing i can compare closely to the wind turbines in my dreams are AI generated turbines. my dreams sometimes end up with me falling off of the side of the nacelle, sometimes while it's on fire!
@@emma12345678961 Interestingly enough, tower sections are now tensioned for the Vestas V150 and larger. The first two stacked sections above base on a 120m tower are M72 fasteners, 580 and 520mm long. The stud and top nut alone are 45 pounds.
@@saasch_baasch It gets even better than that, my friend. The tensioning is done with with a smart tension head that can be operated by a single user. The tension head has a motor that screws itself down onto the stud, then you press confirm and stand back, watching the computer to make sure it reaches the proper stretching and torquing forces on the stud/nut. Once it completes its cycle, it will automatically depressure and allow you to unscrew it and move on to the next fastener. There's no need for 10% marks because the tension gear records all cycles information for manufacturer engineering review. The M72 studs are stretched with close to 3000 kN!
I saw those devices several times and for sure I am familiar with the procedure, but for now I've seen the torque and rotation angle procedure. I am not quite sure, but Torque for M72 was 56 kNM i guess. I usually do this by Hand 😄
Depends on some factors, but may reach up to approximately 8 m / 25 ft (peak to peak). In such cases it is very difficult not to stumble or fall, unless you are prepared.
@@saasch_baasch It is interesting how durable these turbines are! Big machines are hard to understand... Sometimed I saw similar video from cargo ship corridor showing the ship bending on large waves. Do you know ho usual tower colapses or bladr failured are? I have seen some pictures about failures, but they seem to be rare.
They are actually very rare, but they do happen. But compared to a car accident, it is of course much more spectacular and is often widely publicized in the media. The reasons could not be more different, since so many parts are involved. Often it is faulty screw connections, fatigue fractures, manufacturing errors or abnormal conditions in which the control system triggers a dangerous condition, which can be largely ruled out today.
Sometimes we just take a short walk out on the clouds. Honestly, do you know what is really scary / depressing? When you see this view, close the lid and be back on soil after 10 minutes... coming from this "heaven" down to a dark, foggy and cold place. ☹️
@@saasch_baasch i just like being inside them, alone. cozy and creepy. i think the scariest thing that could happen is being inside the tower base during an overspeed, blade loss during operation or a fire. being unable to exit the turbine due to falling shit (debris, not literal shit LOL) and hearing al sorts of scary noises. and lastly the pessimistic alarm on the console going stupid. would the tower sway like that during unbalanced operation after a blade loss?
The fact the tower alone is 140 metres is insane to me. I imagine it's 'fun' in the nacelle in gusty winds.
more like survival scene in a horror movie. i am actually amazed at how a wind turbine could be a candidate for a horror film.
things like being stuck in the tower base because of a fire or over-speed or being trapped in the nacelle until the contorted woman with the open mouth finds you. things like that could be done with wind turbines. (cramped, cozy fluorescent lit structures always have a horror aspect to them)
I love the sound of the hum getting lower as it slows down.
I work on telecommunication towers up to 180m high, you can see the bend looking down when it's windy. Makes it a lot more fun!!!!😀
What could be the reason, is it vibrations due to aerodynamic torque effect of Rotor blades or metal fatigue. Usually all these are simulated during design before commissioning. Wonderful clipping and amazing as always.
It is an overspeed test. They run the turbines at full power and pitch the blades to stop the turbine in seconds. This is an emergency feature.
I have to disappoint you, this is "just" a normal stop. Oberspeed is much worse 😉
The Bending is just the result of the aerodynamic forces of the large area, covered by the turning turbine.
wow ! impressive and scary at the same time
Something that is so stiff when it is 1m long, is elastic when it is over 100m long.
Look up a similar video on a cargo ship in storm.
Thought this was a overspeed test, thats a lot of bending.
I would like to to torque same bolts on flanges before and after over speed test is done to see is they any movement in bolt nut after test. ?
If everything is done right, there is no movement or loosening of bolds, because the pre-tightening exceeds the loads through such a test by far. I know some cases where strange things happen, but this is really rare and due to something terribly wrong😉
OMG when the tower started bending way to much i thought it was going to fall
What turbine model is this from (also what site if you are willing to share)? I'll guess V126 (Mk3B?) possibly.
How do turbines after starting up, synchronising with the grid (generator turning on), keep a constant speed? They may slow down but I didn't hear one speed up. Thought about this after watching for the 100th time "Nordex N60 betreib auf"
Hey, with the N60, the system switches on during acceleration, i.e. without keeping the speed constant. Afterwards, it remains constant at this speed, as this is the mains frequency (50 Hz EU and 60 Hz US). In the case of systems with partial or full converters, the system switches on sooner and then accelerates significantly, which you can hear very well in one of my first videos, I think it was the "V112 startup" or something like that 😊
@@saasch_baasch Thank you very much, I remember the "V112 startup", heard the gen. synchronize with the grid, and after that it sped up. Btw some of these videos I use as ASMR's, hah great sounds. Great videos, keep them up :)))
@@eventhorizon7374 ASMR huh, more like dream fuel, or lucid dream fuel. the only thing i can compare closely to the wind turbines in my dreams are AI generated turbines. my dreams sometimes end up with me falling off of the side of the nacelle, sometimes while it's on fire!
That's a lot more sway than I've ever felt tensioning blades in high winds 😅
Tensioning the tower sections makes sense when you see this! Makes you wonder why they only torque them!
@@emma12345678961 Interestingly enough, tower sections are now tensioned for the Vestas V150 and larger. The first two stacked sections above base on a 120m tower are M72 fasteners, 580 and 520mm long. The stud and top nut alone are 45 pounds.
Great details, even for me 👍
@@saasch_baasch It gets even better than that, my friend. The tensioning is done with with a smart tension head that can be operated by a single user. The tension head has a motor that screws itself down onto the stud, then you press confirm and stand back, watching the computer to make sure it reaches the proper stretching and torquing forces on the stud/nut. Once it completes its cycle, it will automatically depressure and allow you to unscrew it and move on to the next fastener. There's no need for 10% marks because the tension gear records all cycles information for manufacturer engineering review. The M72 studs are stretched with close to 3000 kN!
I saw those devices several times and for sure I am familiar with the procedure, but for now I've seen the torque and rotation angle procedure. I am not quite sure, but Torque for M72 was 56 kNM i guess. I usually do this by Hand 😄
Warte immer noch auf das Cypress Video von innen
Nice...
How many meters does it bend?
Depends on some factors, but may reach up to approximately 8 m / 25 ft (peak to peak). In such cases it is very difficult not to stumble or fall, unless you are prepared.
@@saasch_baasch It is interesting how durable these turbines are! Big machines are hard to understand...
Sometimed I saw similar video from cargo ship corridor showing the ship bending on large waves.
Do you know ho usual tower colapses or bladr failured are? I have seen some pictures about failures, but they seem to be rare.
They are actually very rare, but they do happen. But compared to a car accident, it is of course much more spectacular and is often widely publicized in the media.
The reasons could not be more different, since so many parts are involved. Often it is faulty screw connections, fatigue fractures, manufacturing errors or abnormal conditions in which the control system triggers a dangerous condition, which can be largely ruled out today.
Cool
Very Hard...
That’s not scary at all
Sometimes we just take a short walk out on the clouds. Honestly, do you know what is really scary / depressing? When you see this view, close the lid and be back on soil after 10 minutes... coming from this "heaven" down to a dark, foggy and cold place. ☹️
@@saasch_baasch yeah that’s very fair
@@saasch_baasch i just like being inside them, alone. cozy and creepy. i think the scariest thing that could happen is being inside the tower base during an overspeed, blade loss during operation or a fire. being unable to exit the turbine due to falling shit (debris, not literal shit LOL) and hearing al sorts of scary noises. and lastly the pessimistic alarm on the console going stupid. would the tower sway like that during unbalanced operation after a blade loss?
おれるど