This article was originally published in March 2017 on the Residential Lighting website. Residential Lighting was the precursor to Furniture, Lighting & Decor. The magazine ran for 25 years and was a ...

It is precisely the sort of thing advocated by Mr. L.T. Thomasson, PE, in the June issue of Power Engineering (p. 7) that injures us as a profession and industry. The electrical power industry is ...

Makers of programmable power supplies and loads have been busy on a variety of fronts. They have focused on minimizing ripple and distortion, cutting weight and cost, improving usability and interface ...

The circuit in Figure 1 provides a low-cost, isolated ac-line monitor that measures ac-line-voltage level and has some other unique capabilities. The analysis of the circuit is straightforward: When ...

This file type includes high-resolution graphics and schematics when applicable. For applications such as motor control or power supplies, it’s often necessary to know whether the ac line is at 120 V ...

You can't avoid power line disturbances altogether, but you do have access to options for mitigating voltage, current, and frequency deviations produced by the electric utility system. You can ...

All questions and answers are based on the 2011 NEC. Q. What is the Code requirement for the use of slash versus straight voltage rated breakers? A. A circuit breaker with a straight voltage rating, ...

Fast Ethernet local-area network switches are commonplace and can be purchased in 24- or 48-port configurations for less than $5 per port. Designing a Gigabit Ethernet LAN switch into similar port ...