This relay can suitable for long or short overhead line or cable, double circuit lines, heavily loaded line, and with line weak infeed.
This relay can sample the analog values from the traditional instrument transformers, or receive the sampled values from the electronic current and voltage transformers (via a merging unit). The binary inputs and outputs of this relay can be configured according to the demands of a practical engineering through the PRS IED Studio configuration tool auxiliary software, which can meet some special requirements of protection and control functions.
This relay can fully support the IEC61850 communication protocol and GOOSE function, and can completely meet the demands of a modern digitalized substation.
It provides fast, selective differential and distance protection for overhead lines and cables from 1000kV to 110kV, capable of detecting and clearing all types of phase-to-phase and earth faults within the line protection zone.
Adopts modular hardware design. Except for core modules like PWR, CPU, and HMI, other TF and IO modules can be flexibly configured and installed in remaining slots for easy expansion.
Fully supports IEC 61850 communication protocol and GOOSE functions, meeting the demands of modern digital substations for seamless integration with station and process layer systems.
Features a high-quality LCD display, navigation keys, and configurable function keys for real-time monitoring of status, events, measurements, and modifying protection settings with ease.
Standard | IEC60225-1: 2009 |
Mounting Way | Flush mounted |
Merchanical size (width×high×deepth) | 482.6mm*266 mm *217.7 mm |
Housing material | Metallic plates, parts and screws: Steel Plastic parts: Polycarbonate |
Protection class | Front side:IP40 (IP52 with seal strip) Rear side, connection terminals: IP20 Other Sides: IP40 |
Communication Ports | 3 Ethernet network 2 RS-485 serial ports |
Communication Protocol | IEC61850, IEC60870-5-103, DNP3.0 or ModBus. |
Time Synchronization | SNTP, lEEE 1588, pulse per second (PPS) and IRlG-B |
Function | Line Differential Protection 87L Mho distance protection 21M Quadrilateral distance protection, 21Q Power Swing Blocking Releasing PSBR Out-of-Step Protection 78O Scheme communication logic for distance protection 85 Scheme communication logic for directional earth fault protection 85N Three Phase Directional Overcurrent Protection 67P(50/51P) Directional Earth Fault Overcurrent Protection 67N(50/51N) Directional Negative-sequence Overcurrent Protection 67I2 Breaker Failure Protection 50BF Thermal Overload Protection 49 Stub Differential Protection 87STB Pole Discordance Protection 52PD Reverse Power Protection 32R Broken Conductor Protection 46BC Three Phase Overvoltage Protection 59P Residual Overvoltage protection 59N Three Phase Undervoltage Protection 27P Overfrequency Protection 81O UnderFrequency Protection 81U Synchrocheck 25SYN Automatic Reclosure 79AR Faulty Phase Selection 21FL Trip Logic 94T Fault Detector FD Optical Fibre Communication FO Current circuit supervision CTS Fuse failure supervision VTS CB Position Supervision CBCM |
