PRS-7910 Station Gateway
Product Description
The PRS-7910 Station Manager is designed for the highest standards of performance, safety and reliability to meet requirements of a complex substation automation system (SAS). As a part of the SAS, it works as a station communication manager, which collects, stores and maps signals of relays, measurement units, control units and other IEDs in the substation to higher-level systems such as control center (CC) and distributed control system (DCS).
Scope of Application
PRS-7910 as a station communication manager, which collects, stores and maps signals of relays, measurement units, control units and other IEDs in the substation to higher-level systems such as control center (CC) and distributed control system (DCS).
The PRS-7910 supports several protocols, such as IEC 61850, IEC 60870-5-101/104, IEC 60870-5-103, Modbus and DNP3.0. Data can be transmitted to and received from analog channel, digital channel or network connected to CC, DCS or other system. The direct transmission mode and the device independent avoid any interaction or influence with the substation SCADA (Supervisory Control And Data Acquisition) system.
Furthermore, the PRS-7910 can runs as a data acquisition and logic treatment platform and provides various and flexible advanced function extensions.
Technical Features/Advantages
Real-time database
The database is compatible with data model IEC 61850 and IEC 103
Support of multiple models including primary/secondary equipment model, association model, primary schematic diagram model, etc.
Full modeling view and data information
Unified data acquisition and transmission.
Multiple communication protocol support
Standard package for server: IEC 60870-5-101/104, DNP, Modbus
Standard package for client: IEC 60870-5-101/104, IEC 60870-5-103, DNP, Modbus
Advanced package: IEC 61850 server & client
Customized package: Other customized protocol
Unified substation model transmission
The data model transmission between substation and control center is realized by using the SCD file.
Support of most international standard protocols including IEC 60870-5-101/104, IEC 60870-5-103, DNP, IEC 61850, etc.
Powerful auxiliary configuration tool
Highly integrated configuration functions
Full substation configuration support including project implementation, running, maintenance, analysis, diagnostic and debugging.
System scale
Up to 1024 IEDs
Up to 32 control centers
Database > 200,000 signals
Standard installation size
2U 19" small space occupationwith full feature and flexible configuration
History database
Embedded history database
Optional capacity: 64 ~150 GB SLC SATA
Multiple data storage types including historical SOE records, operation reports, wave files, etc.
Response to control centre
The response success rate from device to control centre > 99%
Real-time data transmission
Internal SOE transmission delay <100ms
Power supply redundancy
Dual power supply module is an option. The extra power supply module will be placed at the other side of the device rack and works independently.
High performance hardware architecture
Dual 1.60 GHz CPUs, 2GB RAM, optional 64 ~150 GB SLC SATA SSD storage memory for historical data
Capable for data management and communication of the SAS for whole substation or power plant
CPU usage < 25% during normal service; CPU usage < 50% during massive data treatment Communication ports:
The 2U 19" chassis supports up to 8 Ethernet ports and 8 serial ports
Non-rotating storage is adopted to avoid vibration
A fully closed chassis with a complete panel
Completely separated spaces for electronic and electrical systems
Designed with anti-interference measures to enhance the device EMC.
W×D×H:425mm×280mm×88.1mm
Specifications/Submodels
Working power | DC 110V/125V/220V or AC 220V |
Ambient temperature | -40℃~+70℃ |
Capacity of accessed device | Simultaneous access of >255 devices |
Number of accessed main stations | Simultaneous connection of >32 main stations |
Remote metering processing time | ≤0.2% |
Remote signal processing time | ≤1ms |
Remote command processing time | ≤200ms |
Accuracy of control operation | 100% |
Alarm direct transfer processing time | ≤500ms |
Remote browsing processing time | ≤500ms |
Time synchronization error | <1ms |
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