EC&M

Decoding NEC Art. 450 for Distribution Transformers

Distribution transformers must adhere to NEC and NFPA 70 standards, with specific requirements for overcurrent protection, ...
Electrical Construction & Maintenance

NEC Guidelines for Transformer and Transformer Feeder Protection

Note: All Code references are based on the 2014 NEC. The NEC has separate sections for transformer feeder protection and transformer protection. Article 240 lists requirements for transformer feeder ...
T&D

Point-to-Point Digital Secondary System Design for a Transmission Substation

Duke Energy is evaluating the use of a point to point digital secondary system to reduce the amount of copper utilized in traditional substation protection designs. Physically large substations with ...
Electronic Design

Select Optimal Protection For Your VDSL-Based Telecom Circuits

A variety of over-current and overvoltage products are on the market for protecting VDSL telecommunications circuits. These include transformer line-side capacitors, transformer driver-side diodes, ...