Monitoring Functions - Siemens 7SR224 Argus Manual

Monitoring Functions

Fault Data Mode – displays Date & Time, Type of fault and
currents & voltages for each of last 10 faults.
Favourite (Default) meters – User selectable from:-
Currents - Primary, Secondary, xIn, Earth/SEF, Sequence
Components and 2nd Harmonic,
Voltages – 3 phase Primary, Secondary & xVn, Ph-Ph and Ph-
n, Sequence Components, Calculated Earth Voltage. Voltage
(Vx) from a 4 th voltage input, Primary, Secondary & xVn.
Synchronising phase, magnitude & frequency difference.
Optional 3 phase from the source side providing Primary,
Secondary & xVn, Ph-Ph and Ph-n, Sequence Components,
Calculated Earth Voltage.
Frequency
Power – MW, MVar, MVA, Power Factor
Energy – Export & Import - MWh, MVarh,
Direction – Load Flow Indication
Thermal capacity – %
Autoreclose – status and shot number
CB Maintenance:
2 Independent Trip Counters,
Frequent Operations Counter
Lockout handle operations counter
I 2 t summation for contact wear
General alarms
Battery Condition monitoring and automatic cyclical test.
Power quality – 27 Sag and 59 Swell (Per pole Counters for
SIARFIx, SMARFIx, STARFIx and Interruption Events,)
Binary Input status indication
Binary Output status indication
Virtual internal status indication
Communications Meters
Miscellaneous Meters, Date, Time, Waveform, Fault, Event &
Data Log records-counters.
Demand Monitoring
Siemens Protection Devices Limited
Data Storage & Communications
Standard Communications Ports
Communication access to relay functionality is via a front
USB port for local PC connection or rear electrical RS485 port
for remote connection
Optional Communications Ports
2 Rear ST fibre optic serial ports (2 x Tx/Rx) + IRIG-B port
1 additional Rear RS485 port + IRIG-B port
1 additional Rear RS232 port + IRIG-B port
2 Electrical Ethernet ports using RJ45 connectors
2 Optical Ethernet using duplex LC connectors
Protocols
IEC60870-5-103, Modbus RTU and DNP 3.0 or IEC60870-5-
101 serial protocols – User selectable with programmable
data points
IEC61850 Ethernet – optional
Ethernet Redundancy: RSTP, HSR & PRP - optional
Data
Event records
Fault records
Waveform records
Measurands
Commands
Time synchronism
Viewing and changing settings
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