Challenges and Opportunities utilities face by using modern protection and control systems

Before considering the application of relays, we should answer a basic question:
What is the main requirement for protection from the utilities' point of view? In my opinion, there is no doubt that reliability is the main requirement.
When there is a fault in the grid, everybody expects relays to trip quickly and with selectivity no matter the kind of fault or the initial cost of protection. More

Power. Flexible. Easergy.
Let?s start with organization in protection testing