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Modular-based large DRSSTC

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Intra
Fri Aug 15 2014, 08:57AM
Intra Registered Member #2694 Joined: Mon Feb 22 2010, 11:52PM
Location: Russia, Volgograd (Stalingrad).
Posts: 97
It's not so far, that people will use 4 single IGBT in parallel with another 4 or more, only for reduce overheating of IGBT contact pads.
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Goodchild
Fri Aug 15 2014, 02:01PM
Goodchild Registered Member #2292 Joined: Fri Aug 14 2009, 05:33PM
Location: The Wild West AKA Arizona
Posts: 795
I really like your guy’s toroid design! Have you noticed any corona on the ends of the tube segments? I ask because with our ring style toroids any imperfections or bumps on the outside of the ring caused breakout, typically unwanted!

I wonder if the way you have them positioned helps to shield the ends inside the e-field such that they don’t break out.

None the less awesome coil guys and my hats off to you.
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zrg
Fri Aug 15 2014, 04:08PM
zrg Registered Member #4762 Joined: Sun May 06 2012, 05:59PM
Location: Russia
Posts: 93
Goodchild wrote ...


I wonder if the way you have them positioned helps to shield the ends inside the e-field such that they don’t break out.


This. All the endings are at least 5-10 cm inside the outer contour of the whole thing. Together with 60-90 cm terminal they are well shielded.
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Goodchild
Fri Aug 15 2014, 05:02PM
Goodchild Registered Member #2292 Joined: Fri Aug 14 2009, 05:33PM
Location: The Wild West AKA Arizona
Posts: 795
zrg wrote ...

Goodchild wrote ...


I wonder if the way you have them positioned helps to shield the ends inside the e-field such that they don’t break out.


This. All the endings are at least 5-10 cm inside the outer contour of the whole thing. Together with 60-90 cm terminal they are well shielded.

ah this makes sense! very cool design. I may have to “barrow” your design one day on some of my coils, if nothing else simply because it looks awesome. I also imagine it’s easier to manufacture than a full ring toroid. My experience with the ring toroids are that they can be finicky to assemble and have issues with breakout near the connections points/joints.
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HV Enthusiast
Tue Aug 26 2014, 12:32PM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Wow! Thats a VERY beautiful and artistic looking toroid. May I ask what pushed your to design your toroid in that spiral fashion? Was it to create something very artistic looking, or was it out of necessity to to make fabrication simpler etc...

Looks great and I love how you do all your modeling. Very professional and very good engineering skills to have!
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Chris Cristini
Sun Oct 19 2014, 04:42AM
Chris Cristini Registered Member #1749 Joined: Fri Oct 10 2008, 02:04AM
Location: Claremont New Hampshire
Posts: 497
Love the 3D modeling great work that is great engineering!!
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