UNTIL a few months ago the literature on the subject of electricity meters was entirely confined to articles in text-books on electrical engineer- ing, and the advent of a book dealing exclusively ...

A specialized test gadget that tests continuity quantitatively in both AC and DC modes could prove to be an indispensible bench test instrument. This article describes such a continuity test set up, ...

Open-loop current sensors have a definite price advantage over closed-loop counterparts. While you can use them in drive applications where torque accuracy isn't demanding — such as pump and fan ...