As power grids get bigger and carry more power, the need for quick, reliable disconnection when faults occur becomes more urgent. The purpose of protective relay equipment is to sense fault states and trip circuit breakers. If a fault isn’t corrected early, personal injuries and damage can occur. Megger’s next generation of programmable secondary relay test systems are designed specifically to test microprocessor, solid state and electromechanical relays. New generation single phase and three phase test systems with remote control facilities and analytics software can make life much easier for protection test engineers.