Power quality primarily encompasses short-duration events on the electrical system that cause equipment to misoperate or shutdown. The time delineation between a power quality event and a steady-state ...

Voltage fluctuations inside buildings are a common but often misunderstood problem. Lights flicker, appliances behave erratically, electronic devices reset unexpectedly, and motors sound strained.

In the upcoming NFPA 70E 2024 Edition, the inclusion of the phrase “at each point of work” and the relationship to absence of voltage testing has prompted questions regarding the use of Permanent ...

(Editor's Note: There are links to the previous parts of this series at the end, below the author's biography.) Determining if one voltage is greater than or less than another voltage is the job for a ...

Analysis of this circuit is simplified by the fact that the output has only two states: V out low (Vol) or V out hi (Voh). In this circuit, Voh is equal to the positive supply voltage and Vol is ...