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4hv.org :: Forums :: High Voltage
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Best power electronic Haul ever?

1 2 
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Thomas W
Thu Jul 31 2014, 04:57PM Print
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
Wow, got back from my mate's house yesterday with a large haul, filled up my bosses' convertable car (he given me a lift back)

10kV Potential Transformer, have had 20kV out of it, with HV wire there too, good for 150kV i do believe.

1406825535 3324 FT0 Lrwgvcz


Loads of Current transformers :)

1406825535 3324 FT0 Zah2yan


300v to 15V @ 500W DC-DC Converters, each PCB has 2 or 3 for a total of 60 odd of them

1406825535 3324 FT0 Bnumegr


600V 400A IGBTs, 2 to a module, 2 mod

1406825535 3324 FT0 11ealms


600V 600A IGBT half bridges. (one is missing, on my desk)

1406825795 3324 FT0 L0o063z


Close up of 600V 600A IGBTs (Half-Bridge)

1406825535 3324 FT0 Udqtmc9


I got all this visiting a friend down in Derby, we went to the scrap yard and i spotted this, he has a load as well.

Here is the datasheet for the 600V 600A IGBT module:
http://www.americas.fujielectric.com...600U2E-060.pdf

rather high speed and a low gate capacitance... awesome.

Got each PCB for 50p each..... Not bad! :)
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teravolt
Thu Jul 31 2014, 07:14PM
teravolt Registered Member #195 Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
do they have a web site
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Mads Barnkob
Thu Jul 31 2014, 07:30PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
That is one master haul, that amount of 600A IGBTs is stunning, now you just have to live up to the stock and build something out of this world :D

teravolt wrote ...

do they have a web site

None of the good junk yards do in websites :)
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Thomas W
Thu Jul 31 2014, 07:31PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
Mads Barnkob wrote ...

That is one master haul, that amount of 600A IGBTs is stunning, now you just have to live up to the stock and build something out of this world :D

teravolt wrote ...

do they have a web site

None of the good junk yards do in websites :)

Well im building up a half-bridge driver -right- now. then im gonna try make it a full bridge.
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Electra
Thu Jul 31 2014, 08:30PM
Electra Registered Member #816 Joined: Sun Jun 03 2007, 07:29PM
Location:
Posts: 156
Nice Lucky find, Though if it were me I don't think I'd have the confidence to buy the lot, As I would wonder what such expensive parts were doing in a scrap yard to begin with. Maybe the equipment was just broken up for the copper and the components are fine, or they came from an overhaul because a few were dud they replaced the lot.

I don't know if you can test these like mosfets where if you charge the gate up with a power supply they will stay conducting until the charge gradually leaks away by itself. Leaky ones will turn off faster than those that are good, so you can identify suspect ones. I've used this technique with TO247 fets but don't know if it's true for anything this size, long as they don't have internal gate grounding resistors of course.

Do you have anything in mind for them?
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Thomas W
Thu Jul 31 2014, 08:36PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
Electra wrote ...

Nice Lucky find, Though if it were me I don't think I'd have the confidence to buy the lot, As I would wonder what such expensive parts were doing in a scrap yard to begin with. Maybe the equipment was just broken up for the copper and the components are fine, or they came from an overhaul because a few were dud they replaced the lot.

I don't know if you can test these like mosfets where if you charge the gate up with a power supply they will stay conducting until the charge gradually leaks away by itself. Leaky ones will turn off faster than those that are good, so you can identify suspect ones. I've used this technique with TO247 fets but don't know if it's true for anything this size, long as they don't have internal gate grounding resistors of course.

Do you have anything in mind for them?

Already tested a pile of them and determined they were all ok before buying the whole lot. You could see they were completely un-used other then just sitting on the shelf. They were likely a canceled order as they were made by a company in Derby for another company that sold them to electric car manufacturers we worked out.
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Steve Conner
Sun Aug 03 2014, 09:02AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Nice! cheesey Can you post another link to the IGBT datasheet, the link you supplied didn't work. They might be really good for smaller DRSSTCs in which case you have to make one.
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Thomas W
Sun Aug 03 2014, 01:14PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
Steve Conner wrote ...

Nice! cheesey Can you post another link to the IGBT datasheet, the link you supplied didn't work. They might be really good for smaller DRSSTCs in which case you have to make one.

Small DRSSTC? i believe you could make some rather large DRSSTCs with these. Link2
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Avalanche
Thu Aug 07 2014, 06:36PM
Avalanche Registered Member #103 Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845
Not quite as epic as the IGBT haul, but I had a mini haul earlier today, again from Derby smile

No idea why, but I decided to score myself this 15kVA three phase transformer and a small variac (complete, just in bits).

The transformer is still in my boot, because I can't get it out cheesey It took two of us to lift it in, and when it landed in the boot it bust through the floor into the spare wheel compartment cheesey I also have no idea what I'm going to do with it cheesey (but being a three phase core, it can be used to wind a single phase transformer but with half the flux (through the center leg) than would normally be possible with a proper single phase core).

Edit - any ideas what I can use it for?




1407436568 103 FT165082 Dsc 0493 Cr
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Thomas W
Thu Aug 07 2014, 08:42PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
Hmm, im not too sure, but you could maybe wind a nice saturatable reactor on it! :)
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