l Three-level overcurrent protection. (50P, 51P)
l Overvoltage protection. (59)
l Undervoltage protection. (27)
l Voltage balance protection. (60V)
l Current balance protection. (60C)
l Ground detector protection. (64)
l Non-electrical quantity protection. (63, NE)
l Thermal overload protection. (49)
l Nine (9) binary inputs.
l Circuit breaker control.
l Nine (9) analog quantity measurements.
l Four (4) pulse accumulating inputs.
l Circuit breaker monitoring.
l VT failure detection logic.
l Voltage and current drift auto adjustment.
l Self diagnostic test.
l GPS clock synchronization.
l Fault Recorder.
l 64 tripping reports and 256 SOE (Sequence of Events) records.
l High resolution oscillography of last 8 oscillograms
(compatible with international COMTRADE format)
l Rear communication ports: Ethernet with IEC 61850 or 2 RS-485 with IEC 60870-5-103 protocol, 1 RS-485 for clock synchronization, 1 RS-485 for communication to printer.
Features
l The RCS-9631 integrates protection, control, monitoring and metering functions for the capacitor in one rack.
l Definite time and inverse time characteristics of overcurrent protection are both provided.
l The RCS-9631 relay constantly measures a large mount of analog quantities, such as phase voltage, phase-to-phase voltage, phase current, active power, reactive power, power factor and frequency.
l The relay can monitor the status and record the number of switching times of the circuit breaker.
l The connector type can be selected as connectorized wiring connector and screw terminal connector. The unique connectorized wiring connectors from the relay rear panel to the terminal blocks on the rack or cabinet makes the on-site commissioning and replacement much easier than when you do the commissioning using the traditional screw terminals on the rear panel.
l On the premise of 24 samples per cycle, all data measurement, calculation and logic discrimination could be done within one sampling period. The event recording and protection logic calculation are completed simultaneously.
l The relay provides GPS clock synchronization, including second pulse, minute pulse and IRIG-B synchronization.
l The format of event report is compatible with international COMTRADE file.
l The relay is compatible with multiple protocols- IEC 61850 and IEC 60870-5-103. It provildes networking interface such as RS485, RS232 and Ethernet port.