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69,000V voltage regulator from Idaho |
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Cam_777
Bronze Level Joined: 26 Oct 2018 Location: Idaho Points: 2 |
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Posted: 26 Oct 2018 at 12:21am |
I thought I'd share this after I came across it up near Sweet, Idaho.
A mostly intact voltage regulator from Allis Chalmers, still humming at 69,000V. Here's the nameplate: I do wonder if Idaho Power has any other equipment from Allis in operation, since they tend to use the old transformers until they die or upgrades are made. The only modifications that have been made to this one appear to be the new polymer bushings.
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DMiller
Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 29466 |
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Many of these are rewind capable, the companies that used to do it are now long out of business as became cheaper to buy new overseas devices. This one may have been rebuilt when those oil cooled bushings were replaced. A great deal of Allis machinery exists across the nation, still generating power or transforming it and still working some fifty to sixty some older years later. Quite a standard to try to meet and none have exceeded.
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jerbob
Orange Level Joined: 07 Aug 2017 Location: Michigan Points: 961 |
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Impressive company.
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HD16DC, Bobcat 863 Turbo, Oliver 1855, John Deere 855,
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Mikez
Orange Level Access Joined: 16 Jan 2013 Location: Usa Points: 8144 |
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Cool thanks for sharing. Here's a few my neighbor hauled for a scrap yard, we got the ac tags off them
Edited by Mikez - 31 Oct 2018 at 11:55pm |
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DaveKamp
Orange Level Access Joined: 12 Apr 2010 Location: LeClaire, Ia Points: 5637 |
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The 69kv regulator station transformer is probably fairly young... late '70's probably. THIS is the kind of equipment that constituted the 'meat' of Allis Chalmers. We saw tractors, which was 'bread and butter'... our tractors were consumer-level products, the greater substance was in providing for industry. The line regulator is a gadget of simple elegance- it's an autotransformer, with taps on it's buck-boost coil... that makes it variable. I've never worked with one, but I've been around a few in substations... Sometimes they're manually adjusted, sometimes they've got telemetry and gearmotor to switch taps remotely, and sometimes they're kinda automatic... but probably just within a limited range. Power comes in to a Y winding, which acts on the output winding, and is either pulled down (bucked) or pushed up (boosted) in voltage by a third winding that's fed through an array of taps. the lower the tap setting, the higher the boost or buck current. By reversing the phasing of the third winding, it bucks, or boosts. This thing is rewindable basically forever- the parts that do the hard work are the core (probably laminated silicon steel) and copper windings... the parts that take the greatest abuse are the insulators (oil inside, ceramic everywhere)... and they're all replaceable... so unless it's really, really damaged, it'll never become 'worn out'. Furthermore, because of physics, the technology of this process really can't be beat by any other form of technology... it's too simple, has practically no dependancies, and is invulnerable to basically anything but direct physical impact from a very large, heavy object. In short, whatever they'd replace it with... is exactly the same thing. Call Steiner or Sandy Lake, tell them you're doing a transmission rebuild, and need an Allis type AFR 21-112-281-073 regulator... mebbie they'd have one in stock?
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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.
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Coke-in-MN
Orange Level Access Joined: 12 Sep 2009 Location: Afton MN Points: 41187 |
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful." |
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77700 |
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ALLIS was big into the Electric field.. At POWER Stations, they built the steam turbines that turned their generators. The power went out to the Yard and thru Transformers to boost it up to 69,000 volts to send to every city and town in the countryside. As Dave mentioned there were substations along the road to BOOST the power back up to compensate for losses.. Walk thru an old power plant from the 1940s - 1970s and you will see many motors from 10 HP up to 3000 HP with the ALLIS name.. The also made the water pumps , crushers , grinders and other things that were driven by the motors.
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Like them all, but love the "B"s.
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77700 |
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Like them all, but love the "B"s.
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 77700 |
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Like them all, but love the "B"s.
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DaveKamp
Orange Level Access Joined: 12 Apr 2010 Location: LeClaire, Ia Points: 5637 |
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Yep... a thing of beauty!!! Last time I was at the West Allis facility, there was still activity there... a contracting company doing rebuilds/refurbs on steam turbines... Should be pictures of the big hydroelectric turbines and generators around the 'net too... BTW... the electric motor that originally came in my 1942 Monarch 10EE toolmaker's lathe WAS a Reliance DC... used a motor-generator system for variable speed, constant horsepower... about 3hp at the spindle it was. Several years ago, I replaced the 10EE's drive system with a 460v Allen-Bradley Variable Frequency Drive... spinning a 3-phase 10hp 460v motor that I'd 'liberated' from a damaged 10hp Quincy air compressor system.... The motor is an Allis-Chalmers!!! In order to get my 240v single-phase mains stepped up to 480v (for the VFD), I used a 7.5kva dry transformer liberated from a scrapped-out billboard sign that'd been pretzl'd in a tornado... and the transformer was made by... Allis-Chalmers!!!! I've got a HAM Radio amplifier that I've got about half built... a pair of 4-1000A tubes (turn a fishbowl upside down, to give you an idea of the size). Power supply for this beastie is 5kv... so I used the guts out of a 'pole pig'... a pole-mount power transformer... that steps 7500v line down to 240v... wired backwards, and fed through a variac, it has no problem doing the job without requiring all the cooling oil, etc... ... and the transformer was made by... Allis Chalmers! Edited by DaveKamp - 11 Nov 2018 at 8:35pm |
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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.
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Mikez
Orange Level Access Joined: 16 Jan 2013 Location: Usa Points: 8144 |
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We took the gauges off the ones in the picture, they have AC on the face of them, would there be anything in left in them
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