Article 240 provides the general requirements for overcurrent protection and overcurrent protective devices (OCPDs). The job of an OCPD is to open the circuit if the current reaches a value that may ...

This answer is based on the 2017 NEC. A. Supplementary overcurrent protection devices aren’t permitted to be used as the required branch-circuit overcurrent protection device [Sec. 240.10]. A ...

Power systems today operate in an environment where reliability and safety must be maintained despite rising loads, expanding interconnections, and increasing dependence on distributed energy ...

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 ...

For the PDF version of this article, click here. Protecting power transistors against overcurrent failure has always been a challenging issue in power circuit design. In order to protect against even ...

This 'back-to-the-basics' video that explains how non-directional overcurrent works. It shows the difference between a fuse and an overcurrent protections scheme with current transformer, relay and ...

KAWASAKI, Japan--(BUSINESS WIRE)--Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched a CMOS dual comparator, "TC75W71FU." It features a high-speed response and a full ...

Basler has updated its Time-Current Characteristic Curves spreadsheet tool to include new curves. The spreadsheet can be used to convert existing time dial settings for old induction disk relays to ...

Find a downloadable version of this story in pdf format at the end of the story. Although features and functionality attract the most attention for new electronic products, whether consumer, ...