In the first part of this series, featured in the February 2011 issue, we considered the selection of the protective devices of a low-voltage induction motor supplied from a motor control center (MCC) ...

Last month, we discussed the protective devices coordination procedure for a low-voltage motor and demonstrated how the ratings and settings of branch circuit and short circuit protective devices are ...

The rate of transient occurrences varies with every power system. Recent studies show that surges of 1kV or less are common — whereas 3kV surges are rare. Protecting against more frequent (internally ...

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 ...

S&C has upgraded Coordinaide — The S&C Protection and Coordination Assistant. This application tool has been upgraded to improve the look and feel of the user interface and to include several new TCC ...

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 ...