The PCS-9705S Bay Control Unit (BCU) is a general-purpose control, protection and automation device in all substations, power plants and industrial domain applications. The modular conception permits the hardware adaption exact to client requirements.
The PCS-9705S is applicable not only to conventional substations but also to digital substations. It supports IEC 61850 edition 1.0 and 2.0 standard for modelling of various signals and provides MMS/GOOSE/SV network interfaces for independent or hybrid network in real-time. The process layer supports peer-to-peer (P2P) mode and networking mode, including single network mode and dual network mode. The station layer could receive and send MMS messages, such as interlocking signals, or GOOSE messages, such as switch positions and tripping signals.
Санал авах
Six stages phase overcurrent protection (50/51P)
Six stages earth-fault protection (50/51G)
Two stages negative-sequence overcurrent protection (50/51Q)
Undercurrent protection (37)
Two stages phase overvoltage protection (59P)
Positive-sequence overvoltage protection (59Pos)
Two stages negative-sequence overvoltage protection (59Q)
Two stages residual overvoltage protection (59G)
Two stages phase undervoltage protection (27P)
Six stages overfrequency protection (81O)
Six stages underfrequency protection (81U)
Six stages rate-of-change of frequency protection (81R)
Two stages reverse power protection (32R)
Breaker failure protection (50BF)
Transfer trip (TT)
Auto-reclosing (79)
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 inputs (0~±20mA or 0~±10V)
DC analogue outputs (4~20mA, 0~10V, 0~5V or 0~20mA)
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
Tap position indicator and control
Automatic voltage regulation (90V)
Parallel voltage regulation (PVR)
CT circuit failure Supervision (CTS)
VT circuit failure Supervision (VTS)
Self diagnostic
Powerful faults recording (max. buffer for 10,000 sampled points at 4.8 or 9.6 kHz)
Event recorder including 1024 change-of-state events, 1024 supervision events, 256 control logs and 1024 device logs
Disturbance recorder including 32 disturbance records with waveforms (format compatible with COMTRADE)
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
Ø Support of IEC 61850-9-2LE SV
Up to four 10Base-T/100Base-TX copper Ethernet ports
