Power systems today operate in an environment where reliability and safety must be maintained despite rising loads, expanding ...

All questions and answers are based on the 2017 NEC. Q. Per the NEC, overcurrent protection devices must be placed at what location in branch-circuit or feeder conductors? A. Except as permitted by ...

All questions and answers are based on the 2017 NEC. Q. What is the Code requirement for sizing the overcurrent protection of conductors? A. Except as permitted by Sec. 240.4(A) through (G), ...

The more functionality that a system has to present to the user, the more complex and power-hungry it tends to be. Power architects are under tremendous pressure to expand the boundaries of power ...

Discover the latest updates, expert analysis, and industry coverage related to digital overcurrent relays , from POWER Magazine’s trusted reporting on energy and technology trends.

One of the most common reasons to measure current in today’s automotive systems is to detect fault conditions and respond to them quickly. I touched on this topic previously in Signal Chain Basics ...

With the rise of vehicle electrification, the number of digital power control systems and electric motors in automobiles is expanding rapidly. Correspondingly, electrical systems must be as efficient ...

This circuit provides latching and high-speed overcurrent protection for power-factor corrected (PFC) boost converters operating at dc voltages to 380 V. Overcurrent damage of PFC front-end boost ...

For modern distribution protection, Negative Phase Sequence (NPS) Protection is often relegated in favor of common elements such as Overcurrent (OC) or Earth Fault (EF), but NPS is an incredibly ...

The usual way of preventing a small motor from drawing too much current is to install overcurrent protection in the form of a circuit breaker or some other kind of limiter. But installations that ...