� Time-overcurrent protection
( definite-time/ inverse-time/ user-def.)
� Directional time-overcurrent protection
( definite-time/ inverse-time/ user-def.)
� Sensitive dir./ non-dir. earth-fault
detection
� Displacement voltage
� Intermittent earth-fault protection
� High-impedance restricted earth fault
� Inrush restraint
� Motor protection
� Undercurrent monitoring
� Starting time supervision
� Restart inhibit
� Locked rotor
� Overload protection
� Temperature monitoring
� Under-/ overvoltage protection
� Under-/ overfrequency protection
� Breaker failure protection
� Negative-sequence protection
� Phase-sequence monitoring
� Auto-reclosure
� Fault locator
� Lockout
Control functions/ programmable logic
� Commands f. ctrl of CB and of isolators
� Control via keyboard, binary inputs,
DIGSI 4 or SCADA system
� User-defined logic with CFC
( e.g. interlocking)
Monitoring functions
� Operational measured values V, I, f
� Energy metering valuesWp, Wq
� Circuit-breaker wear monitoring
� Slave pointer
� Trip circuit supervision
� Fuse failure monitor
� 8 oscillographic fault records
Communication interfaces
� System interface
� IEC 60870-5-103/ IEC 61850
� PROFIBUS-FMS/ -DP
� DNP 3.0/ MODBUS RTU
� Service interface for DIGSI 4 ( modem)
� Front interface for DIGSI 4
� Time synchronization via IRIG B/ DCF77
Hardware
� 4 current transformers
� 3 voltage transformers
� 8/ 11 binary inputs
� 8/ 6 output relays |