Thread-topic: meteringRe: [TCML] Power factor correction
----- Original Message -----
>
> If you have dire need to measure current and cant get a CT. In a pinch, I
> once used a short segment of #10 solid core wire to measure 35 or so amps of
> current, which was outside the range of my measuring device at the time.
> I measured the resistance along the length and found a length that
> corresponded to .1ohms. (like a foot or wire or so) then i soldered 2 loops
> of smaller wire at those locations so i could clip on my multimeter. Solder
> some ring connectors a little further down. Measure the millivolts and you
> can easily determine the current.Calibrated it by using my meter and
> verifying it was accurate at lower currents. Of course it gets less
> accurate when it starts getting warm and its dangerous, but its still
> reasonably close at currents around the wires standard rating.
> Worked great in a pinch!Probably not ideal for what your trying to do, but
> figured i'd offer the concept for inquiring minds anyway.
I used the same technique on my motorcycle, years back.
Taking reasonable care in construction, its still there,
still working.
best
dwp
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