Re: Lamp limiter plus Variac tip
Al, just thinking aloud now... my own isolating transformer doesn't have a centre-tapped secondary, but by the same thinking, I should be able to plug in a conventional RCD safety plug into the transformer's output to add the trip facility, shouldn't I? The RCD is current-operated and it senses the difference between the currents through its two active conductors, irrespective of whether the leakage current flows to earth or to anywhere else. It's the imbalance that is detected.
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Phil
Optimist [n]: One who is not in possession of the full facts
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