3 phase 13A Lübcke variac
Introduction On a junk yard I found a badly damaged enclosure containing a 3 phase 13 A variac, 10 kVA isolation transformer and 6 large stud diodes in a 3 phase full bridge rectifier configuration....
Merlin Gerin PM700 power meter
Introduction I wanted a small unit to plug into, or between two, mains feed cables to measure voltage, RMS current, power factor and harmonic distortion. I found this Merlin Gerin PM700 power meter at a...