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The PCS-9641S relay is a protection, control and monitoring unit for various kinds of motors on solidly grounded, impedance grounded, Peterson coil grounded and ungrounded system. This relay is suitable for wall surface mounted indoors or outdoors or flush mounted into a control panel. With its flexibility and the powerful PCS-Studio configuration tool, the PCS-9641S offers future-oriented system solutions with high investment security and low operating costs.
Motor startup control function (MSC)
Current differential protection (87M)
Phase overcurrent protection (50/51P)
Earth fault overcurrent protection (50/51G)
Cold load pickup logic (CLP)
Negative-sequence overcurrent protection (50/51Q)
RMS overcurrent protection (50/51R)
Undercurrent protection (37)
Thermal overload protection (49)
Phase overvoltage protection (59P)
Positive-sequence overvoltage protection (59Pos)
Negative-sequence overvoltage protection (59Q)
Residual overvoltage protection (59G)
Phase undervoltage protection (27P)
Reverse power protection (32R)
Underpower protection (37P)
Power factor protection (55)
Overfrequency protection (81O)
Underfrequency protection (81U)
Frequency rate-of-change protection (81R)
Breaker failure protection (50BF)
Overtemperature protection (26)
Switchgear control
Double point status synthesis
Remote/Local control mode switch
Interlocking logic for control
Switchgear trip counter
U, I, P, Q, Cos
Positive, negative and zero sequences
Max.15th harmonics
Energy metering (active and reactive energies for import and export)
Power Quality Supervision (PQS) with Total Harmonic Distortion (THD), deviation and unbalance
DC analog outputs (4~20mA, 0~10V, 0~5V or 0~20mA)
VT circuit supervision
CT circuit supervision
Self-diagnostic
DC power supply supervision
System frequency supervision
Event recorder including 1024 disturbance items, 1024 change-of-state events, 1024 supervision events, 256 control logs and 1024 device logs.
Disturbance recorder including 64 disturbance records with waveforms (The file format of disturbance recorder is compatible with international COMTRADE file).
Single line diagram representation in display
Support of various protocols
Ø Modbus
Ø DNP3
Ø IEC 60870-5-103
Ø IEC 61850 Ed1 & Ed2
Ø IEC 62439 Parallel Redundancy Protocol (PRP)
Ø IEC 62439 High-availability Seamless Ring (HSR) Redundancy Protocol
Ø IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
Support for digital substation
Ø Extendable quantity of communication interfaces
Ø Support of IEC 61850 MMS Server
Ø Support of IEC 61850-8-1 GOOSE
Up to four 10Base-T/100Base-TX copper Ethernet ports
Up to four 100Base-FX optical Ethernet ports
Two RS-485 serial ports for communication or printer
One RS-485/TTL serial port for clock synchronization
One BNC connector for clock synchronization