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

As modern society takes uninterrupted electricity supply for granted, electrical utility providers are increasingly measured by the reliability of the infrastructure used to deliver power to consumers ...

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 ...

As the electric distribution system transforms into a smarter network, Commonwealth Edison Co.’s distribution automation team has embarked on a step-change journey that will transform distribution ...

A transformer protection relay does not replace upstream devices. It defines responsibility. By clearly assigning fault detection to the transformer zone, it allows feeders, breakers, and system ...

A bipartisan group of 12 U.S. senators on Jan. 18 introduced a bill that could freeze the Department of Energy’s (DOE’s) implementation of updated energy efficiency standards for distribution ...