Distribution Automation Terminals
GP8700 RTU
The GP8700 RTU integrates line protection and communication equipment management in a modular plug-in chassis with flexible configuration and independent protection modules. It is suitable for substations, indoor and outdoor switching stations, distribution rooms, disconnector rooms and box-type substations.
Collects, processes and analyzes real-time distribution-network measurements and remote-signaling data so the dispatch center can monitor network conditions and make operating decisions. Remote control enables equipment operations from the control center, shortening fault-handling time and reducing labor intensity.
Enquire About This Product01 / PRODUCT FEATURES
Product at a glance
High-precision, Wide-range Sampling
- Supports analog measurement with electronic VT + electronic CT or electronic VT + electromagnetic CT configurations, meeting metering, measurement and protection requirements simultaneously.
Local Earth-fault Location and Isolation
- Uses transient-based algorithms to locate and isolate single-phase earth faults locally in small-current, non-effectively grounded systems.
Local Feeder Automation
- Supports local feeder automation compatible with recloser-based voltage-time, voltage-current-time and adaptive integrated modes.
Remote Configuration and File Upload
- Extended communication protocols support remote parameter configuration and upload of remote-control records, logs, waveform recordings and energy metering files.
Flexible Cascade Communication
- Four field-switchable RS232/RS485 serial ports and two RJ45 Ethernet ports meet complex on-site communication requirements.
Testing and Commissioning
- Covers type testing, specialist distribution-terminal testing, primary-secondary integration testing, pre-supply sample submission, full delivery inspection, on-site joint commissioning and operational evaluation.
02 / SPECIFICATIONS
Technical specifications
| Description | Value |
|---|---|
| Model | GP8700 |
| Operating Environment | Ambient temperature: -40°C~+70°C; maximum temperature change rate: 1°C/min Relative humidity: 10%~95%; maximum absolute humidity: 35g/m³ Atmospheric pressure: 70~110kPa |
| Power Supply | Nominal DC 24V; allowable input range: 21~29V |
| Switch Measurement & Control Capacity | 96-channel remote-signaling input; 24-channel remote-control output 8-channel AC voltage input; 16-channel AC current input 8-channel DC current input; 8-channel DC voltage input 8-channel DC analog output, selectable voltage or current |
| IP Rating | IP41 |
| Communication Interface | 2×RS232 + 2×RS485 + 2×RJ45 |
| Communication Protocol | DNP3.0, IEC60870-5-101, IEC60870-5-104, IEC61850, IEC62351, MODBUS |
| Measurement Accuracy | Current/voltage: Class 0.2 Power and power factor: Class 1 SOE resolution: ≤2ms Frequency: 0.005Hz |
| Timekeeping Accuracy | Time error: <2s per 24h |
| Rated Frequency | 50Hz / 60Hz |
| Voltage & Current Sampling | PT: 3.25/√3 V; CT: 225mV |
| Dimensions (W × D × H) | 482.0 × 150.95 × 177.00mm |
| Electromagnetic Compatibility | ESD/RS/EFT/Surge/PFMF/CS/OMF: Level IV 1.2/50μs impulse: Level V Voltage sag: 0.1s; interruption: 0.05s; DC ripple: Level III IEC61000-4-2/-3/-4/-5/-8/-6/-18/-29/-17 |
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