Siemens 7SJ80 Siprotec Compact Overcurrent Protection Numerical Relay

Conformal coating available (NEW) ، Pluggable current and voltage terminals ، Binary input thresholds settable using DIGSI (3 stages) ، Secondary current transformer values (1 A / 5 A) settable using DIGSI ، 9 programmable function keys ، 6-line display ، Buffer battery exchangeable from the front ، USB front port ، 2 additional communication ports ، Integrated switch for low-cost and redundant optical Ethernet rings ، Ethernet redundancy protocols RSTP, PRP, and HSR for highest availability ، Relay-to-relay communication through Ethernet with IEC 61850 GOOSE ، Millisecond-accurate time synchronization through Ethernet with SNTP ، Number of binary inputs and binary outputs by a connection from up to two SICAM I/O-Units extendable. ، Protection Functions: ، Overcurrent protection (50, 50N, 51, 51N) ، Directional time-overcurrent protection (67, 67N) ، Sensitive dir. ground-fault detection (67Ns) ، High-impedance restricted ground fault (87N) ، Undercurrent monitoring (37) ، Overload protection (49) ، Under-/overvoltage protection (27/59) ، Frequency protection (81O/U) ، Breaker failure protection (50BF) ، Negative-sequence protection (46) ، Synch-check (25) ، Auto-reclosure (79) ، Fault locator (21FL) ، Lockout (86) ، Control Functions/Programmable Logic: ، Commands for control of CB, disconnect switches (isolators/isolating switches) ، Control through a keyboard, binary inputs, DIGSI 4, or SCADA system ، User-defined PLC logic with CFC (e.g. interlocking) ، Monitoring Functions: ، Operational measured values V, I, f ، Energy metering values Wp, Wq ، Circuit-breaker wear monitoring ، Minimum and maximum values ، Trip circuit supervision (74TC) ، Fuse failure monitor ، 8 oscillographic fault records ، Communication Interfaces: ، System/service interface ، IEC 61850 Edition 1 and 2 ، IEC 60870-5-103 and IEC 60870-5-104 ، PROFIBUS-DP ، DNP 3.0 ، MODBUS RTU ، DNP3 TCP ، PROFINET ، Ethernet redundancy protocols RSTP, PRP, and HSR ، Hardware: ، 4 current transformers ، 0/3 voltage transformers ، 3/7 binary inputs (thresholds