HTML supports a variety of entity symbols which can be entered using either numbers or an entity name.  The number or name is preceded by the ‘&’ sign...

MIT OpenCourseWare, makes the materials used in teaching all MIT subjects available on the Web, free of charge, to any user in the world.

When sizing cables nearly, everyone uses some form of software. This ranges from homespun spreadsheets to complex network analyses software. Each has its...

The other day I came across an article in Technology Review on the development of a smart transformer. A professor at North Carolina State University is...

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The correct sizing of current transformers is required to ensure satisfactory operation of measuring instruments and protection relays. Several methods...

While not as popular as it once was, frame leakage protection does still have some use in some circumstances.  In essence frame leakage is an earth fault...

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The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.

Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...