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PCS-9671 Transformer Relay
PCS-9671 is a compact numerical relay for two-winding transformers. It can be utilized for reactor or stub-bus current differential protection. It also can be used to protect reactors or implemented as a stub current differential protection in a oneand- a-half breaker arrangement. The restraint current differential protection, unrestraint differential protection and restricted earth fault protection are provided.
Comprehensive flexibility is provided via the modular hardware design, scalable function library, programmable logics, configurable I/Os and definable LEDs. This allows users to create customized schemes for specific projects. Two fixed LEDs and 18 configurable 3-color LEDs (Green/Yellow/Red) are provided. The relay is compatible with IEC 61850 station bus and process bus applications. It supports IEC 61850-8-1 MMS, GOOSE and IEC 61850-9-2 Sampling Value. The RJ-45 faceplate port is implemented in effort to make testing, setting, commissioning and maintenance easier.
- Protection and Control Management Auxiliary Testing Functions
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Restraint current differential protection. (87T)
Unrestraint current differential protection. (87UT)
Restricted earth fault protection (64REF)
Inrush current blocking by 2nd and 3rd harmonic
Overexcitation blocking by 5th harmonic
CT saturation detection
Phase overcurrent protection (50/51P)
Zero sequence overcurrent protection (50/51G)
Negative sequence overcurrent protection (46)
Thermal protection (49)
Undervoltage and overvoltage protection (27/59)
Zero sequence overvoltage protection (59G)
Negative sequence overvoltage protection (47)
Overexcitation protection (24)
CT circuit supervision. (CTS)
1024 supervision alarm records, 1024 control operation records and 1024 user operation records
64 fault and disturbance records
1024 SOE records
Up to four 10Base-T/100Base-TX (RJ45) ports or two 100Base-FX ports with IEC 61850-8-1 MMS, IEC 60870-5- 103 over TCP/IP
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
One RS-485 rear port for clock synchronization
One RS-232 rear port for printer
One faceplate RJ-45 port for testing and setting
Clock synchronization via pulse, IRIG-B and SNTP
Virtual tripping report generation and communication testing
Virtual self-supervision report generation and communication testing.
Virtual binary input state change report generation and communication testing.
Binary output testing.
Manual triggering fault recording.