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How a GFCI operates and why it requires no ground.

Magnetic field around a wire with the conventional current flowing into the page.

Way back, a long time ago, I started introducing the idea of inductance in a post called “Through the Looking Glass – Duality – The Inductor“. To start talking about inductance it is necessary to talk about electromagnetism and that is

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Examples of Problems with Grounding Electrical Systems

Faking out the Ground Plug.

Tonight’s post is a continuation of the last post “Grounding and Neutral in Power Wiring” and I am going to show a couple of examples of problems with grounding in power and even instrumentation and audio systems. Some of these problems are in my opinion still not resolved and

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Grounding and Neutral in Power Wiring.

Partial diagram of typical wiring for a residence.

Recently I changed a setting on this blog to put no time limit for comments and I got a very interesting comment/question in the post: Ground, Common, Neutral, Reference, and Buses. I am not going to repeat the question and my answer here, but that question

Continue reading Grounding and Neutral in Power Wiring.