Electrical Construction & Maintenance

Stumped by the Code? Rules for sizing transformer secondary conductors?

Q. What are the NEC rules for sizing transformer secondary conductors? A. A set of conductors supplying single or separate loads is permitted to be connected to a transformer secondary without ...
KXAN

PDM Launches Innovative VFI Transformer with Advanced Overcurrent Protection for Data Centers

Revolutionary vacuum fault interrupter technology enhances uptime, safety, and remote management for high-density power infrastructures ATLANTA, Aug. 4, 2025 /PRNewswire/ -- Power and Data Management ...
Electrical Construction & Maintenance

Stumped by the Code? Code Requirement for Sizing the Overcurrent Protection of Conductors

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), ...
T&D

Overcurrent Protection Testing

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 ...
Electronic Design

Next-Generation Resettable Fuses Target Complex Protection Needs

Every time a user plugs in, operates or leaves a system unattended, an overcurrent fuse should be there to ensure against circuit operation above a specified value. BRIAN AHEARNE, Product Line Manager ...
POWER Magazine

Transformer Safety: Fire Barriers as Essential Protection for Electrical Infrastructure

Flammable insulating fluids and electrical faults pose significant fire and explosion risks to transformers. These hazards can result in catastrophic damage, disrupt business continuity, and cause ...