There are advantages to using a three phase power input that have been pointed out. Measurements of 3 phase systems are done every day so this is not important.
If Cude can show a real test that proves 3 phase measurements are not accurate, then someone will listen. Until that time, he can go no further with this argument. Dave -----Original Message----- From: Joshua Cude <joshua.c...@gmail.com> To: vortex-l <vortex-l@eskimo.com> Sent: Thu, May 30, 2013 1:38 pm Subject: Re: [Vo]:new hypothesis to confute regarding input energy in Ecat test On Wed, May 29, 2013 at 9:47 AM, Berke Durak <berke.du...@gmail.com> wrote: > In fact I said the 3-phase input to the box was particularly unnecessary > *because* only single-phase was used for the box. There are legitimate reasons to prefer 3-phase input. If the output of the control box is a pulse width-modulated DC signal, then you need a high-power DC source. There might be requirements on the control waveform. Using three phases you can get DC with decent ripple using only a handful of diodes. The power never goes to zero, whereas it would go to zero 100 times a second if you were using a full-wave rectifier with single-phase input. If the peak power required by the e-CAT is around 1 kW, then you would need caps supplying up to 1 kW. We're talking ~100 µF caps rated at 350V supplying 3.5A. Such large caps are difficult to find and it makes more sense to go with multiple caps in parallel to supply that current. These caps would dissipate a couple watts each. Temperature very quickly shortens the lifetime of aluminum electrolytic caps. Hence, if you use them you reduce the reliability of your device, which could be a problem for the e-Cat. And the above assumes the peak power is 1 kW. So I don't think you can say that 3-phase input is particularly unnecessary, unless you know things about the e-Cat we don't know. I don't buy it. The reactor is a sealed faraday cage, so it's not going to care about ripple or dc vs ac. It's just a thermal interface. But in any case, in the dummy run, they measured the power to the ecat so that suggests it's an ordinary ac signal. Anyway, a box powered by ordinary mains can produce any signal shape they want. They wouldn't go to 3-phase just to skimp on diodes and capacitors. The 3-phase looks more like obfuscation to me.
