Glassman +40kV Powersupply

15 03 2009

Just won this GLASSMAN HIGH VOLTAGE POWER SUPPLY MODEL CRT-HVPS 

+40kV

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11 responses

16 03 2009
A. McEvoy

What were you planning on using this HVPS for?

16 03 2009
FAMULUS

To create the high positive potential of the magrid skin.

17 03 2009
A. McEvoy

I’m afraid the current limit on that HVPS will be much too low for that application since there will be significant electron losses to the grid. I’m sure they cover this at iecfusiontech or in Bussard’s previous papers, you should check it out.

17 03 2009
FAMULUS
17 03 2009
A. McEvoy

It looks like this is part of a tandem HVPS unit and that you will need to purchase one of the anode supplies listed on the spec sheet. Depending on the anode supply (LG or WG) it looks like you can push 7.5 or 15 mA at 16 kV. To charge a capacitor of that size you will need to be pushing amps, not milliamps, so I think the answer is no, at least not on any sort of realistic time scale. I am not an expert on capacitors so you should look into this for yourself, but I am quite certain that you need a higher current rated supply either for maintaining the grid potential or charging that monster capacitor.

17 03 2009
FAMULUS

Chalk that up to tuition!

Re-bay university.

17 03 2009
A. McEvoy

So I may have been hasty in putting down that low current limit for charging the cap…you don’t really care about repetition, so it doesn’t matter how long it takes to charge. In fact, slow charging is generally safer and better for your cap anyhow. Double check my numbers, but I think you can charge the thing in a matter of minutes with that supply and a WG anode supply.

http://www.ppmpower.co.uk/downloads/products/PPM25.pdf

Still won’t work for the grid though.

17 03 2009
FAMULUS

that capacitor stores some serious juice. surly it could drive the magrid, if only briefly?

also, there are more of those same capacitors available. In fact I do believe I could put together a capacitor bank to rival EC2.

from the WB6 report:

and the high voltage bias power supply (12, 225uF
capacitors, charged up to 15kV with the Hipotronics power supply).

17 03 2009
17 03 2009
FAMULUS

spec sheet for hipotronics :

http://www.hipotronics.com/pdf/DC-Psupplies-MJK-062207-0.pdf
0 – 100kV DC
10mA

18 03 2009
A. McEvoy

I meant that the HVPS wouldn’t be useful for charging the grid to high potential. The capacitors will definitely be useful for running your magnet coils, sure, but for creating the potential you will need a power supply capable of running some pretty serious current in the kV range i.e high wattage HVPS. That Hipotronics supply looks like fun, but I don’t know what it would really be good for in this application…

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