call me a nerd but i love watching old relay elevator vids like this...this one with the vertical closing door on the inside is awesome wish they still made em like that
Tbh to me it's also some unusual kind of asmr at times. xD Sure the old machinery working in this way is just satisfying and really nice to watch. The vertical doors like this are very common here for retrofits. Originally there was no inner door.
@@TheLiftDragon yea i’ve noticed a lot with no inner doors from the 60s and 70s but this is the first vid i’ve watched with the dropdown door super cool can’t wait to see more of your content!
Very nice. I always wondered who the vertical doors look from on top the car. Thanks for showing that. And I love those vintage floor selector. Suprises me that they worked so reliably.
You're welcome! The Schindler floor selectors are truly marvels of engineering. This one here is especially interesting because the breaking distance of the lift is longer than on a standard 2-speed, so the selector is a bit more complex. The lift also needs an intermediary speed, which is slower than nominal, to travel between the floors in the basement. Sadly, I've heard that this lift now had some problems recently. I don't know how long it will be kept like this. Hope it won't get modded or replaced soon.
Went there with George a few months ago, but unfortunately it was out of order!! :( Also, looks like it's been out of order long enough to warrant it being modernised. So really glad that you caught it working (I'm guessing this was filmed before my visit) and it's (or WAS) truely a special machine!
Oh you were there too! That's really sad that the lift wasn't working. It truly is a really special lift, surely among the last of its kind. This video was filmed in early 2024 and I'm really happy that I got it on camera. I recently went to Geneva again with some friends and stopped by this lift to show them, but it was still shut down. That means it probably has been like that for over 3 months now, indicating that it will be modernised or replaced in the near future. Really really sad because this might just be the last Dynator we have in Switzerland. :(
Oh, were you there too? But it was broken? That would be really sad because it's super interesting. Really sad if it will be gone, probably the last of its kind in Switzerland.
I have seen several of your videos. This one was special though. The control electronics look so sleek and “simple” compared to most others. Is that what it is?
As can be told by the floor numbering, this lift is in a tall (residential) tower block. SS is the basement, P is parking and R is ground. Then the lift only stops at 4, 8, 12 and so on.
You're welcome! Tje big one generates the main DC voltage to drive the motor and the smaller ones generate the excitation voltage for the field coils of both thr main motor and generator.
puh…. these lift doors would give me some anxiety together with no indication whatsoever on what floor you currently are when the lift car is in motion
Do you mean the vertical inner doors or the swing doors? As you can see, the swing doors have the floor numbers written on them on the inside. So before the vertical inner door was added, you could see the floor numbers on the shaft doors while moving. That's why a floor indicator was omitted at construction.
brushed DC generator and motor brushes get used by the time(ac motors do not have this issue, who makes brushed ac motor?) idk if want to keep relay logic, it is possible to replace dc generator with a full bridge ratifier(convert ac to dc, but maybe it needs a transformer(for step down?, idk how much volt is dc generator outputting) and capacitor(for stabilize voltage))
AC motors with brushed do exist, but they are called slip ring motors and the purpose of this is to reduce startup current by switching resistors in parallel with the rotor windings, which are shorted as soon as the motor reaches nominal rpm. And no, a DC generator of a Ward-Leonhard drive system can NOT be replaced with a solid state rectifier. The generator does output a variable voltage depending on the field current, it acts as an amplifier. In oder to drive a DC motor, a H-bridge circuit is needed. In fact, two of them, a big one for the armature current and a small one for the field current as this is a motor with separate supplies.
A pair of this model still exists in Hong Kong, but its for passenger use and the COP got slapped. ua-cam.com/video/Mfa1ZU-NRF4/v-deo.htmlsi=VxL8PscdwgFZ9-Ap
Oh wow, really fascinating that there's still more of them around! I don't mind a renewed interior as long as the equipment in the motor room is still original, that's what counts to me. Would love to see behind the scenes of these.
wow that's a lift, so good to see everything is still working well, built to last
It indeed is! Some fascinating engineering from back then.
call me a nerd but i love watching old relay elevator vids like this...this one with the vertical closing door on the inside is awesome wish they still made em like that
Tbh to me it's also some unusual kind of asmr at times. xD
Sure the old machinery working in this way is just satisfying and really nice to watch. The vertical doors like this are very common here for retrofits. Originally there was no inner door.
@@TheLiftDragon yea i’ve noticed a lot with no inner doors from the 60s and 70s but this is the first vid i’ve watched with the dropdown door super cool can’t wait to see more of your content!
Very nice. I always wondered who the vertical doors look from on top the car. Thanks for showing that. And I love those vintage floor selector. Suprises me that they worked so reliably.
You're welcome!
The Schindler floor selectors are truly marvels of engineering. This one here is especially interesting because the breaking distance of the lift is longer than on a standard 2-speed, so the selector is a bit more complex. The lift also needs an intermediary speed, which is slower than nominal, to travel between the floors in the basement.
Sadly, I've heard that this lift now had some problems recently. I don't know how long it will be kept like this. Hope it won't get modded or replaced soon.
PEELLE ?
Gotta love that telescopic door!
The telescopic door is pretty neat indeed. I find the counterweights on booth sides really interesting.
Went there with George a few months ago, but unfortunately it was out of order!! :( Also, looks like it's been out of order long enough to warrant it being modernised. So really glad that you caught it working (I'm guessing this was filmed before my visit) and it's (or WAS) truely a special machine!
Oh you were there too! That's really sad that the lift wasn't working. It truly is a really special lift, surely among the last of its kind. This video was filmed in early 2024 and I'm really happy that I got it on camera. I recently went to Geneva again with some friends and stopped by this lift to show them, but it was still shut down. That means it probably has been like that for over 3 months now, indicating that it will be modernised or replaced in the near future. Really really sad because this might just be the last Dynator we have in Switzerland. :(
Gute Aufnahmen! Das ist der älteste Antrieb den ich je gesehen habe!
Dankesehr! Sicher einer der speziellsten Antriebe, ich habe aber schon ältere Sachen auf meinem Kanal veröffentlicht.
You were so lucky that the lift was working! I guess it won't take long before it will be modernized.
Oh, were you there too? But it was broken? That would be really sad because it's super interesting. Really sad if it will be gone, probably the last of its kind in Switzerland.
du machst dein video sehr interessant weil du auch dabei mit aufzugsteuerung und den schachtfahrt machst bitte mach weiter so
Danke.
I have seen several of your videos. This one was special though.
The control electronics look so sleek and “simple” compared to most others. Is that what it is?
Indeed, this is a really special lift.
You mean most controllers look rather simple, but this one here has more to it?
The floors seem very far apart on this lift. Is this underground at cern?
As can be told by the floor numbering, this lift is in a tall (residential) tower block. SS is the basement, P is parking and R is ground. Then the lift only stops at 4, 8, 12 and so on.
@TheLiftDragon Thanks!
Thanks for sharing this amazing elevator! Why are there so many dynamotors (or rotary converter) ? Thanks
You're welcome!
Tje big one generates the main DC voltage to drive the motor and the smaller ones generate the excitation voltage for the field coils of both thr main motor and generator.
In Uruguay joven Wir noch 20
Oh wow, das ist echt toll! Hier sind fast alle weg, ich kenne nur noch diesen hier und der wird leider auch bald umgebaut.
puh…. these lift doors would give me some anxiety together with no indication whatsoever on what floor you currently are when the lift car is in motion
Do you mean the vertical inner doors or the swing doors? As you can see, the swing doors have the floor numbers written on them on the inside. So before the vertical inner door was added, you could see the floor numbers on the shaft doors while moving. That's why a floor indicator was omitted at construction.
@@TheLiftDragon yeah, meant the inner doors. Gotcha why no floor indicator was added during construction.
brushed DC generator and motor
brushes get used by the time(ac motors do not have this issue, who makes brushed ac motor?)
idk if want to keep relay logic, it is possible to replace dc generator with a full bridge ratifier(convert ac to dc, but maybe it needs a transformer(for step down?, idk how much volt is dc generator outputting) and capacitor(for stabilize voltage))
AC motors with brushed do exist, but they are called slip ring motors and the purpose of this is to reduce startup current by switching resistors in parallel with the rotor windings, which are shorted as soon as the motor reaches nominal rpm.
And no, a DC generator of a Ward-Leonhard drive system can NOT be replaced with a solid state rectifier. The generator does output a variable voltage depending on the field current, it acts as an amplifier. In oder to drive a DC motor, a H-bridge circuit is needed. In fact, two of them, a big one for the armature current and a small one for the field current as this is a motor with separate supplies.
A pair of this model still exists in Hong Kong, but its for passenger use and the COP got slapped.
ua-cam.com/video/Mfa1ZU-NRF4/v-deo.htmlsi=VxL8PscdwgFZ9-Ap
Oh wow, really fascinating that there's still more of them around! I don't mind a renewed interior as long as the equipment in the motor room is still original, that's what counts to me. Would love to see behind the scenes of these.