Digital Fault Recorder

ransient fault recorder—post fault analysis to verify protection and circuit breaker opera tions, fault clearance times and distance to fault Disturbance recorder—extended recording and logging for slow disturbances and steady state RMS values, harmonics and optional real power and power factor Power quality monitor—voltage and frequency profiles, voltage dips and surges, loss of supply, and harmonic content Fault locator—calculates distance to fault based on configurable line model