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Kaizer DRSSTC I

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LAN_403

GluD

Fri Oct 16 2009, 09:00PM

Registered Member #1221 Joined: Wed Jan 09 2008, 06:17PM
Location: Odense, Denmark
Posts: 196

Hes from the military, so he probably polish it like his boots :D

Kickass looking bridge indeed, I might just have to sneak by and see it in action some time in the future.

Mads Barnkob

Sat Oct 17 2009, 01:22PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

Killa-X wrote ...

brtaman wrote ...

Great bridge design, inductance kept at a minimum! How do you keep your copper looking so clean? Did you apply anything to it?

I wondered the same thing...How do you do it? I know some people told me you could apply even a thin coating of varnish to it, clear varnish, to protect it...but this doesn't appear to be the case.

Its just copper, but I do wear gloves when handling it to avoid too many finger prints, so the best advice is to avoid getting it dirty :)

The next couple of pieces in the puzzle will be getting a function generator on the 1st of next month so i can test the driver, building a winder rig and get busy on the secondary coil.

Z28Fistergod

Sat Oct 17 2009, 02:24PM

Registered Member #2040 Joined: Fri Mar 20 2009, 10:13PM
Location: Fairfax VA
Posts: 180

What did you use to cut the busbars? It looks really neat, like machine cut.

Mads Barnkob

Sat Oct 17 2009, 04:03PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

Z28Fistergod wrote ...

What did you use to cut the busbars? It looks really neat, like machine cut.

Thanks for those kind words, as I only used a hacksaw, file and vise :)

Killa-X

Sun Oct 18 2009, 07:28PM

Registered Member #1643 Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039

Well. So if I use gloves on copper, I won't have issues with it getting dirty? I thought naturally over time, the copper tends to ge less shine to t, and gets dull until you polish it with something. But if I handle it with gloves, should be fine?

Also, how close are you getting this tesla to finish :). What's your to-do list so far? :D

Mads Barnkob

Sun Oct 18 2009, 07:44PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

Killa-X wrote ...

Well. So if I use gloves on copper, I won't have issues with it getting dirty? I thought naturally over time, the copper tends to ge less shine to t, and gets dull until you polish it with something. But if I handle it with gloves, should be fine?

Also, how close are you getting this tesla to finish :). What's your to-do list so far? :D

It will ofcourse get dull over time due to oxidation, but leaving no fingerprints makes it look even in the entire surface.

The todo list is long

Build platform
Wind secondary
Build Topload
Test driver
Assemble everything
Build rectifier and mains section
Build primary coil and forms

There is lots to do :)

Z28Fistergod

Tue Oct 20 2009, 01:22AM

Registered Member #2040 Joined: Fri Mar 20 2009, 10:13PM
Location: Fairfax VA
Posts: 180

Mads Barnkob wrote ...

Thanks for those kind words, as I only used a hacksaw, file and vise :)

I took a look at the enlarged picture and I'm not sure I believe you!

Thats some real attention to detail, it must have taken a long time with a file to get those edges so nice.

Mads Barnkob

Sun Dec 13 2009, 12:23PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

Updated thread with driver debugging and primary construction, hopefully I will get busy winding the secondary doing the holidays :)

Till then I will work at installing the bridge, drivers, different supplies and power section etc on the platform.

Mads Barnkob

Mon Mar 29 2010, 04:43PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

Updated main post with picture and information about the fresh out of the oven secondary

Luca

Mon Mar 29 2010, 07:37PM

Registered Member #2481 Joined: Mon Nov 23 2009, 03:07PM
Location: ITALY
Posts: 134

Hi

I have seen from your spreadsheet that you are planning to run your bridge with a peak current of 800A. Do you think that these devices can withstand such current (rated peak is 300A...) I'm asking because I'm planning a DRSSTC based on the same IGBT (I'have just bought it

)

Also, isn't your MMC undersized in terms of peak voltage? With 800A peak and 5.85 sprimary impedance you will have 4680V peak on the caps... So, you will ned a MMC with a DC rating of about 9300V (two times the peak voltage).

Anyway, very good job! Congrats!

Reagards,

Luca

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