This is just for the fun of it, not serious stuff regarding Rossi.
Earlier in the thread "Structure of Rossi Device" the possibility
that ground and neutral were shorted in the Rossi controller box was
discussed, thereby sharing return power on neutral and ground, and
thus possibly halving the measured current to the device. This would
be an easy mistake to make if a polarized plug were used, unless a
GFCI protected receptacle were used. However, the ammeter would have
to clamped on the neutral or ground wire by mistake.
The L-type plug used would permit ground and neutral to be shorted,
but would cause a short and breaker trip with 50% probability if
plugged in at random. The L-type plug has three identical round
conductors aligned in a row, with the central one being blue. It is a
non-polarized plug. The insulation color of wires according to the
current IEC 60446 standard is neutral-blue, line-brown, and
protective-earth-green/yellow. However, since the plug is not
polarized, blue and brown wires can exchange roles depending on
orientation of the plug at plug-in time. The clamp-on ammeter Rossi
used was correctly clamped on the brown line wire which carries the
potential, provided the plug is oriented correctly, else it is
clamped on the neutral.
Just for fun I tried to see if I could come up with a circuit using
just diodes and a transformer that would be line-neutral polarity
independent which would always share return current on the neutral
and ground. I came up with the circuit in Fig. 1. It is impervious to
polarity of the inputs I1 and I2, and shares current between the
neutral and ground regardless which way an L-type plug is plugged
in. This can be done without a transformer if active components are
used.
------|<|----o-----|>|---G
| |
| o-------------------o
| |
| o---------------- |
| | | | Transformer
| o---|>|----o-----|<|---G | ---O||
| | | O||
o---o-|---|>|----o-----|<|---G o------O||O---o S1 To
I1 | | ||O Load
| o----------------------O||O---o S2
| O||
| o----------------------O||
I2 | |
o-----o---|<|----0-----|>|---G
Fig. 1 - Circuit Sharing Load on Ground and Neutral.
This still leaves the problem that the plug has to be plugged in so
that the brown (line) wire carries neutral to make for wrong
measurements. Also, ground fault isolation, if present, will result
in a triggered breaker.
A much more simple method to throw off power measurements is to put a
diode and possibly an inductor in the line so as to draw primarily DC
power from the AC line. The AC current measurement from a clamp-on
AC meter would then be artificially very low.
o-------Inductor-----o---|>|---o To
o------------------------------o Load
This is the kind of thing, drawing mostly unidirectional current from
an AC source, could easily be done unintentionally. I don't think
any of the above is actually relevant to Rossi's work. Still, I
think it is good to think about these things when looking at new
claims for free energy. It highlights the importance of good input
power measurement.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/