50 kW Sedecal SHF-530 X-ray High Voltage Generator Inverter Teardown

[@mikeselectricstuff]

If that contactor is for functional, rather than safety isolation, it would only need to switch 2 of the 3 phases. I wonder if they keep one phase connected to avoid anything floating up to a very high voltage if an earth comes off

[@KaizerPowerElectronicsDk]

That is a very good point! That would leave a negative rail for faults to return through, if there was a capacitor from negative rail to ground... I do not remember if there were such, when I in a hurry pulled the inverter panel out of the cabinet.

[@natebender4740]

Yesssss Ive been waiting for more X-Ray generator content. Im currently winding my own transformer for my own system!

[@Alexelectricalengineering]

Nice teardown 👍😎, definitely useful parts for future projects

[@KaizerPowerElectronicsDk]

Lets see if the PM300 can become a CM300 :)

[@Alexelectricalengineering]

@@KaizerPowerElectronicsDk I am excited to see

[@Brazylizsek]

Nice teardown. Just a tip, you should include schematic of the power section with all passives measured and noted. Something like DiodeGoneWild does in his teardowns.

[@trenthighvoltage]

Never seen large bricks mounted to a chassis like that, no heatsink. Wouldnt that heat up a lot tho?

[@Alexelectricalengineering]

I think they only running in pulse mod, maybe also they driving the transformer in SLR (would explain the capacitor and inductor), I was built a SLR converter to drive a HV transformer for a Jacob's Ladder

[@trenthighvoltage]

@@Alexelectricalengineering SLR?

[@Alexelectricalengineering]

@@trenthighvoltage Series load resonant converter

[@Alexelectricalengineering]

@@trenthighvoltage It is a good topology for homemade HV Transformers since you can basically endlessly arc

[@Alexelectricalengineering]

@@trenthighvoltage I was using it to drive my homemade HV transformer for a Jacob's ladder kzbin.info/www/bejne/ip2nln2EnK6Dadk

[@MrQuazar]

i hope you asscemble all as it was? )

[@gth042]

My guess is that parts will be reassembled as they should be. :) He only had access to that one cabinet in the system.

[@KaizerPowerElectronicsDk]

Not quite understood? Entire x-Ray systems are EASILY above 500 kg in total. It is not something you just slab in the back of your car :)

[@gth042]

@@KaizerPowerElectronicsDk Exactly, you'll reassemble a few of the parts into other projects - as they should be :) Nice IGBT find, btw. I hope you were able to remove the back cover and have a look around.