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PCS-9631 Capacitor Relay
The PCS-9631 relay is a comprehensive protection, control and monitoring unit for shunt capacitor bank on solidly grounded, impedance grounded, Peterson coil grounded and ungrounded system. The PCS-9631 features high performance functional library, programmable logic, configurable I/O and integrated frequency-tracking.
The PCS-9631 can fully support the IEC61850 communication protocol and GOOSE function, and can completely meet customer demands.
- Protection and Control Monitoring and Metering Communcation
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Four-stage overcurrent protection. (50P/51P)
RMS overcurrent protection. (51RMS)
Six-stage zero sequence overcurrent protection. (50/51G)
Unbalance current protection. (60P/G)
Thermal overload element. (49)
Negative sequence overcurrent protection. (46)
Undercurrent protection. (37)
Breaker failure protection. (50BF)
Two-stage undervoltage protection and two-stage over voltage protection. (27/59)
Phase voltage differential protection. (87V)
Neutral voltage differential protection. (87VN)
Mechanical Protection (MR)
Remote and local tripping/closing of breaker.
Voltage and current drift auto adjustment.
Frequency tracking.
Metering of current, voltage, active power, reactive power, power factor, energy, frequency, harmonic.
Circuit breaker monitoring.
CT failure supervision.
VT failure supervision.
Tripping circuit supervision.
Self diagnostic.
Fault Recorder.
Total 1024 SOE, including tripping, alarm, binary input change and human operation reports.
User-configurable high resolution oscillography of last 4 oscillograms. (Compatible with COMTRADE format)
Up to four 10Base-T/100Base-TX (RJ45) ports or two 100Base-FX ports with IEC 61850-8-1 MMS and GOOSE for non-time-critical message, IEC 60870-5-103 over TCP/IP or DNP 3.0
Two RS-485 rear ports with IEC 60870-5-103
Up to Six 100Base-FX ports with IEC 61850-9-2 Sampling Value and GOOSE for time-critical message
One RS-485 rear port for clock synchronization
One RS-232 rear port for printer
1 faceplate RJ45 port for testing and setting
Clock synchronization via pulse, IRIG-B and SNTP