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Re: primary side charging inductors
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- Subject: Re: primary side charging inductors
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Wed, 12 Jan 2005 08:36:52 -0700
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Original poster: "Hydrogen18" <hydrogen18@xxxxxxxxxxxxx>
I considered this, but always figured the HVDC filter cap would be damaged
when the spark gap fires due to the immense currents.
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
Sent: Tuesday, January 11, 2005 8:19 PM
Subject: primary side charging inductors
> Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>
> The recent discussion about CAUAC's primary side inductors brings up an
> interesting point. If you have 3 phase power, this works very
> nicely. The idea of putting the choke on the primary is very attractive
> a) it's at a reasonable voltage
> b) you have the transformer working for you, so you don't need as much
> Rather than trying to make huge inductors (albeit at low currents) that
> hold off tens of kV, you can make (or buy) a high current, low voltage
> But, what if you have single phase power, still want to do DC resonant
> charging. (not rectified AC, but real DC).
> Obviously, this doesn't work if you have a big honking (term of art)
> It might be that overall, the total system might be smaller and lighter
> weight if you used a rotary converter (or, maybe, some combination of L
> C on the primary side, like big arc welders do) to synthesize 3 phases.
> Ultimately, I suppose that the energy stored in the inductor is the same,
> so it will be about the same size, regardless of position.
> In fact, perhaps the rotary converter could serve as the inductor (if it
> were a wound rotor var compensator/synchronous condenser, it almost
> certainly could).
> We're talking here about systems that are >10kVA (for smaller, it's
> probably not worth it), but that are still running off single phase.