When helping a client select protective schemes, protective relays, or communication protocols and communication backbone, several things need to be considered. PCE listens to the clients and gives recommendations based on protective requirements, available budget, system scalability and upgradability, client’s expertise and communication availability. We also give our clients options and then enter into discussions of pros and cons of the various schemes, manufacturer’s equipment and the technology. PCE can replace existing electromechanical relays with new modern microprocessor relays in the existing panel or do a full replacement of an old panel.