Phase loss protection relay PCS-9611S

under-currentover-frequencypower

Overview
PCS-9611S is a protection, control and monitoring unit for various primary equipments such as overhead line, underground cable, capacitor and transformer on solidly grounded, impedance grounded, Peterson coil grounded and ungrounded systems. With its flexibility and the PCS-Studio configuration tool, the PCS-9611S offers future-oriented system solutions with high investment security and low operating costs. The PCS-9611S is widely adopted for conventional substations and digital substations. It supports IEC 61850 Editions 1 and 2 and provides GOOSE and SV network interfaces with high real-time performance. The process level network supports peer-to-peer (P2P) mode and networking mode, including single network mode and dual network mode. The station level network can receive and send MMS messages and process level GOOSE messages.

Protection and Control

• Phase Overcurrent Protection (50/51P)
• Earth Fault Overcurrent Protection (50/51G)
• Another Group of Earth Fault Overcurrent Protection (A.50/51G)
• Negative-sequence Overcurrent Protection (50/51Q)
• Broken Conductor Protection (46BC)
• Sensitive Earth Fault Protection (50/51SEF)
• RMS Overcurrent Protection (50/51R)
• Phase Overvoltage Protection (59P)
• Residual Overvoltage Protection (59G)
• Negative-sequence Overvoltage Protection (59Q)
• Positive-sequence Overvoltage Protection (59Pos)
• Phase Undervoltage Protection (27P)
• Overfrequency Protection (81O)
• Underfrequency Protection (81U)
• Frequency Rate-of-change Protection (81R)
• Reverse Power Protection (32R)
• Cold Load Pickup Logic (CLP)
• Undercurrent Protection (37)
• Breaker Failure Protection (50BF)
• Switch-on-to-Fault Protection (SOTF)
• Thermal Overload Protection (49)
• Restricted Earth Fault Protection (64REF)
• Arc Flash Protection (50L/NL)
• Current Unbalance Protection (60/50)
• Voltage Unbalance Protection (60/59)
• Automatic Reclosure (79)
• Another Group of Phase Overcurrent Protection (S2.50/51P)
• Distance Protection (21L)
• Fault Location (FL)
• Switchgear control
• Double point status synthesis
• Remote/Local control mode switch
• Interlocking logic for control
• Direct control
• Closing synchronism check with voltage selection
• Switchgear trip counter

Monitoring and Measurement

• 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 analogue outputs (4~20mA, 0~10V, 0~5V or 0~20mA)

Synchrophasor measurement (Integrated PMU)

• Compatible with IEEE C37.118-2005, IEEE C37.118.1-2011, IEEE C37.118.2-2011 and IEEE C37.118.1a-2014
• Supports time synchronization by IRIG-B signal
• Supports P Class or M Class measurement (user selectable)
• Measurement of three-phase and single-phase voltage and current
• Measurement of positive/negative/zero-sequence voltage and current
• Calculation of active power, reactive power, system frequency, and rate-of-change of frequency (ROCOF)
• Measurement of up to 32 binary status (user configurable)
• Output of synchrophasor with timestamp; support of multiple protocols (TCP, TCP-UDP, UDP) and multiple data rates for maximum 4 clients (PDC)

Supervision functions

• 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 (file format compatible with COMTRADE)
• Single line diagram representation in display

Communication functions and protocols

• Support of various protocols:

• Modbus
• DNP3
• IEC 60870-5-103
• IEC 61850 Ed1 & Ed2
• IEC 62439 Parallel Redundancy Protocol (PRP)
• IEC 62439 High-availability Seamless Ring (HSR)
• IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)

Digital substation support and communication interfaces

• Support for digital substation
• Extendable quantity of communication interfaces
• Support of IEC 61850 MMS Server
• Support of IEC 61850-8-1 GOOSE
• Support of IEC 61850-9-2LE SV

Hardware interfaces

• 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 port for clock synchronization

Characteristics / Technical specifications

• Model: PCS-9611S
• Application: protection, control and monitoring for feeders (overhead lines, underground cables, capacitors, transformers)
• IEC 61850 Editions 1 & 2 compliant; supports GOOSE and SV
• Process-level networking: peer-to-peer (P2P), single network and dual network modes
• Station-level: MMS messaging capability
• Integrated PMU compatible with multiple IEEE C37.118 standards
• Time synchronization: IRIG-B support
• P or M class PMU measurement selectable
• Up to 15th harmonics measurement
• Energy metering for import/export (active and reactive)
• Power quality supervision including THD, deviation and unbalance
• DC analogue outputs: configurable 4~20mA, 0~10V, 0~5V or 0~20mA
• Event recorder: 1024 disturbance items, 1024 change-of-state events, 1024 supervision events, 256 control logs, 1024 device logs
• Disturbance recorder: 64 records with waveform (COMTRADE compatible)
• Support for multiple communication protocols including Modbus, DNP3, IEC 60870-5-103 and IEC 61850
• Networking redundancy support: PRP, HSR, RSTP
• Ethernet ports: up to four copper and up to four optical ports
• Serial ports: RS-485 (two) plus RS-485/TTL for clock sync and BNC for clock sync
• Widely used in conventional and digital substations