DC PWM Lester mod of 60s Otis in abandoned building

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Please note: Please don't attempt to copy what you see in this video without understanding of how to do it safely. I don't mean to sound bossy or tell people what to do. I just don't want people to get hurt. Just from watching my videos will not give you all the knowledge required to safely enter lift shafts.
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Опубликовано:

19 сен 2024

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Комментарии : 30

@nooxis2643 Год назад

1:10 300Hz 🥰 one of my favorite frequencies for a dc chopper

@slendermanRblx Год назад

I’d say the PWM drive makes it sound more simillar to a Class 319 Thameslink EMU.

@thebigtrainguy Год назад

Yes

@kopterflug-inspection Год назад

amazing and entertaining video!

@shugthehornyhaggis Год назад

Amazing

@TheTheo58 10 месяцев назад

The data plate shows the DC motor is 15HP pulling 83A, N.L. 135VCD F.L. 150VDC I'm surprised the voltage is not higher maybe in the 230-240 VDC range to reduce the current draw.

@raychambers3646 Год назад

Beno have ever come across in your travels what we used to a Bacon Slicer lift car position mech , also double journey relays .?

@windowsxpnt2347 Год назад

Hey Austin this is guys

@ReubenAshwell Год назад

Hey guys, this is a lift with Austin controls.

@Andrewjg_89 Год назад

Hey guys Austin is in London setting off fireworks for 2023.

@madamwong5429 Год назад

May i know when is the release for the new skyscrapersim because its already end of the year

@wisteela Год назад

That's weird how it's been abandoned so long, and with the power still on.

@jakewynn Год назад

Its because the copper theives haven't got there yet. Its them that cause the buildings to be flooded when they steal the copper piping. It must be very secure. I imagine beno used a key or something to get in.

@ObtainEmployment Год назад

Some buildings must remain powered so that certain safety systems (fire alarm, security, etc) can continue to run.

@jakewynn Год назад

@@ObtainEmployment oh yeah I don't think that councils will care if its abandoned safety wise but they may have mobile data masts on them etc. That require power. There are a few abandoned multistorey carparks near me that can't be demolished until the mobile data transmitters are removed from the roof.

@ObtainEmployment Год назад

@@jakewynn I'm basing this off of the US, but many fire codes here require continuous monitoring, which is done by the fire alarm. If the building catches fire it needs to be caught and sent to the fire dept for dispatch. In my city we have tons of homeless and vagrants who hang out in these buildings so it's a public safety matter, here.

@jakewynn Год назад

@@ObtainEmployment not saying we don't have the regulations for it, just that the local councils are lazy and don't have any consideration for homeless people 😂 but yeah your point was definitely valid, didn't think of that aspect. Most abandoned buildings get trashed by copper thieves and therefore all power and water is gone.

@crazyleyland5106 Год назад

If the first 2 lifts are DC, does that mean that there is a rectifier to convert the power from the mains supply from AC to DC?

@benolifts Год назад

Yes. Both VF drives and DC drives convert the incoming supply to DC

@matejgamingandotherstuff6484 Год назад

Next time you should torque stall it with some rebar

@benolifts Год назад

It would have to be a demolition site to something like that, where the lift is about to be turned into a pile of rubble, and the owners don't care about it being stress tested. The problem is that it is rare for demolition sites to still have power.

@matejgamingandotherstuff6484 Год назад

@@benolifts you toque stall the motor to hear the PWM sound, no?

@benolifts Год назад

It is not confirmed that these lifts are not wanted, so I would not do anything that could stress test or cause damage

@matejgamingandotherstuff6484 Год назад

@@benolifts That, I understand. But the sound when the motors run is just... too quiet