Description
Full Set of Main Generator Protections
Stator differential protection (87S), 100% stator single-phase earth fault protection (optional GPM-S low-frequency injection module required), single-point / two-point rotor earth fault protection (GPM-F module);
Loss-of-excitation protection, overexcitation V/Hz protection, reverse power protection, negative sequence current protection, overcurrent / overvoltage protection, under/over frequency protection, out-of-step blocking protection, circuit breaker failure protection (50BF).
2. Communication and Network Redundancy (GE Vernova CyberSentry)
The device integrates 3 independent Ethernet switches, supporting IEC 61850 MMS/GOOSE, Modbus TCP and PRP dual-network redundancy;
It is equipped with isolated RS485 Modbus RTU and local RS232 commissioning port, and supports IEEE 1588 time synchronization as well as process bus IEC 61850-9-2LE.
3. Measurement, Fault Recording and Event Logging
Real-time electrical quantity acquisition: three-phase current / voltage, active / reactive power, power factor and harmonic components;
Event logging: 1024 fault events with high-precision time stamps;
Fault recording: up to 64 groups of fault waveform files, with synchronous recording of 16 analog channels.
4. High-reliability Operation & Maintenance Design
Full hardware channel self-diagnosis, on-line supervision of trip circuits, and hot-standby switchover of dual redundant communication networks;
CyberSentry cybersecurity protection, compliant with NERC CIP cybersecurity standards for North American power grids;
Built-in FlexLogic programmable logic for customized interlock and sequence control logic.
Application Scenarios
- Large thermal / hydropower / gas-fired power stations: main protection for steam, hydro and gas turbines, and complete protection for generator-transformer units
- New energy power stations: protection for self-provided synchronous condensers in large photovoltaic, concentrated solar power and wind power plants
- Industrial captive power plants: protection for generating units and waste heat units in chemical, oil & gas, metallurgical and paper-making plants
- Intelligent digital substations: newly-built smart power plants requiring IEC 61850, process bus and PRP dual-network redundancy
- Pumped storage power stations: compatible with unit protection under both power generation and pumping operating conditions without switching CT secondary circuits
Common Similar Full Models of the Same Series (Only Differences in Mounting & Configuration)
- G60-U01-HCH-F8L-H67-M8L-P6D-U6D-W6C: identical configuration, only HCH stands for horizontal rack mounting (the most widely used model in the market)
- G60-G03-AKH-F8L-H67-M8L-P6D-U6D-W6C: G03 premium software with built-in PMU synchrophasor measurement function
- G60-U01-AKH-F8A-H6P-M6C-P6P-U6P-WXX: simplified I/O version with fewer extended CT and output channels
VI. Classification of Generator-related Products on the UR Platform
- G30: Simplified protection for small and medium generators with streamlined I/O and communication, applicable to units below 10 MW
- G60: Flagship model for medium and large units, featuring multi-channel CT acquisition, dual redundant communication and complete stator / rotor earth fault protection (the model described herein)
- T60: Transformer differential protection, exclusively for main transformers and station auxiliary transformers without dedicated generator protection logic
- M60: Comprehensive protection for large high-voltage synchronous / asynchronous motors, not applicable to generators
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