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 ...
T&D

Two, Three or Four Winding Protection for Transformers of All Sizes

Beckwith Electric's Transformer Protection System M-3311A provides protection, control, monitoring and user interface functions for two, three or four-winding transformers Beckwith Electric's ...
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 ...
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 ...
EDN

Resettable circuit protection devices protect electric motors and transformers

Raychem Circuit Protection, a business unit of Tyco Electronics, has announced the introduction of its PolySwitch(tm) LVR series of resettable circuit protection devices. PolySwitch LVR devices help ...