Tag Archives: data monitor

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 fair price on ebay and … Continue reading

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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. It was not possible to … Continue reading

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