Transient Fault Recorder

Transient fault recorder-post fault analysis to verify protection and circuit breaker operations, fault clearance times Disturbance recorderlogger-analyze power system stability by recording recluse sequences, power swing, and frequency oscillations Trend recording-verify voltage regulation and balancing Power quality monitor-voltage and frequency profi les, voltage dips and surges, loss of supply, harmonic content, fl icker, voltage and current imbalance