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Re: ASRSG question
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- Subject: Re: ASRSG question
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Mon, 04 Apr 2005 22:58:54 -0600
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Original poster: "Gerald Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
One idea that crossed my mind is that your 1/4 inch electrode gap may be
part of the problem.
At 3500rpm and 8 electodes, you will have 467 pps. I dont know what size
of Cap you are using but maybe at 467pps, the cap cant be charged high
enough to break across a 1/4 in gap. Does it run at a lower rpm. Try
240pps. I would not go down to 120 pps with an ARSG since the phase may
accidently linger at zero cross over and this could cause an uncontrolled
voltage rise if any of the ferromagnetics start to saturate. If you
electrically connect all rotor electrodes together, you will be able to go
to two static electrodes and reduce the total gap distance to 1/8 inch.
What is the PIG ballasted at and what is your Cp value?
Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>
No, I'm using 8 rotary electrodes driven on a 11 1/2" diameter
x 1/2" electrical grade fiberglass disc. The motor is a variable
speed 0 - 130 VDC, 2.5 HP treadmill duty motor that is rated
at 3500 rpm.