Siemens Reyrolle 7SR110 Non Directional Overcurrent Protection Numerical Relay

Product Description

The relay functionality allows highly flexible settings for current andtime grading making it compatible with all types of overcurrent protection.

Protection FunctionsUndercurrent (37)Broken Conductor (46BC)Negative Phase Sequence Overcurrent (46NPS)Thermal Overload (49)Overcurrent (50, 51)Earth Fault (50G, 50N, 50SEF, 51G, 51N, 51SEF)Directional Control of Overcurrent & Earth Fault (67)High Impedance REF (64H)Under/Over Voltage (27/59)Negative Phase Sequence Voltage (47)Voltage Controlled Overcurrent (51V)Neutral Voltage Displacement (59N)

Supervision FunctionsCT Supervision (60CTS)Trip & Close Circuit Supervision (74T/CCS)VT Supervision (60VTS)Inrush Detector (81HBL2)Circuit Breaker Fail (50BF)

Control Functions·        Auto Reclose (79)

Monitoring FunctionsPrimary/Secondary Current Phases and Earth DirectionPrimary/Secondary Line and Phase VoltagesApparent Power and Power FactorReal and Reactive PowerW Hr & VAr Hr Forward and ReverseHistorical Demand RecordPositive Phase Sequence (PPS) Voltage & CurrentNegative Phase Sequence (NPS) Voltage & CurrentZero Phase Sequence (ZPS) Voltage