Instead of substation equipment replacement, SATEC’s Add-On to Automate concept simply requires adding a single ezPAC™ Power Intelligence Unit™ to each feeder with minimal panel and wiring changes. This device hooks up to the existing CTs and PTs to give total automation information, while co-working with the existing electromechanical relays, and not interfering with the protection scheme. It extends the useful life of these relays by providing all the information that they cannot supply. The result is the most cost-effective and fastest means to automate.

The ezPAC™ extends the life expectancy of EM protection relays for many years by providing the information lacking from these highly reliable devices without interfering with the protection scheme. The ezPAC™ unites advanced control and automation functions, intelligent fault recorder, power quality and sequence of events (SOE) with automatic analysis and reports. It also offers revenue metering, back-up protection and extensive control capabilities (up to 48 digital inputs with 1 ms time resolution and up to 32 relay outputs) to provide a solution for sub-station and industrial automation.

The ezPAC inherently provides many functions of bay controller related to control and monitoring for bay applications. The ezPAC™ is suitable for retrofit as well as for new utility projects.