The Doble F6150e Relay Testing System tests protection relays, schemes and assess protection system performance for analog testing of 1A and 5A protection devices. 

To accept modulated or demodulated signals from station satellite clocks use in combination with the Doble F6051 Time Synchronizer.

Doble F6150e Relay Testing System features: 

• Standard relay calibration and verification testing of high burden and microprocessor relays
• Protection scheme testing using state simulation and transient testing
• Protection Suite Software 
• Metering at 0.2 class CTs and transducers 
• End-to-end testing of communication based schemes with GPS time syncing  
• Maximum of 12 Sources (6 Voltage, 6 Current) configurable for bench testing and proof of concept testing for complicated relaying schemes