GE G60 | Generator Protection System
Comprehensive protection for AC generators. The G60 Generator Protection System, a member of the UR Family of protection relays, provides protection for AC generators. It may be used on any size of generator driven by steam, gas, hydraulic or other turbines.
Built on the industry-leading UR platform, the G60 offers superior protection for medium and large generators, including large steam and combustion turbines, combined cycle generators and multi-circuit hydro units. The G60 may also be used on pumped storage generators without the need to switch the CT secondary circuitry. The G60 provides advanced communication with an integrated, fully managed Ethernet switch reducing network installation costs while supporting industry standard communication protocols.
Application
- Medium to large generators typically driven by steam, gas or hydraulic turbines
- Pumped storage generators used as pumping motors for reservoir storage
- Stand-alone protection or component in automated substation control systems
- Standard protection product offering on new GE generator installation
Key Benefits
- Secure, high-speed protection elements for complete generator protection, compliant with IEEE® C37.102
- Phasor Measurement Unit (synchrophasor) according to IEEE C37.118 (2011) and IEC® 61850-90-5 support
- Three independent fiber or copper Ethernet ports for simultaneous/ dedicated network connections with advanced 1 microsecond time synchronization via LAN with IEEE 1588 support
- Reduced relay-to-relay wiring and associated installation costs through high-speed inter-relay communications
- Available Ethernet Global Data (EGD) eases integration with new and existing GE Digital Energy control systems
- Increase network availability by reducing failover time to zero through IEC 62439-3 "PRP" support
- CyberSentry™ provides high-end cyber security aligned to industry standards and services (NERC® CIP, AAA, Radius, RBAC, Syslog)
- Robust network security enabling Critical Infrastructure Protection through user command logging, and dual permission access control
- Advanced fault and disturbance recording, including internal relay operating signals, eliminating the need for external recording devices
- Complete IEC 61850 Process Bus solution provides resource optimization and minimizes total P&C life cycle cos
Features
Protection and Control- Generator stator differential
- 100% stator ground protection 3rd harmonic
- Field ground protection
- 100% stator ground fault protection using sub-harmonic injection
- Loss of excitation
- Power swing blocking and out-of-step tripping
- Backup distance
- Reverse/low forward power
- Restricted ground fault, thermal overload protection, directional, time, instantaneous, phase, neutral, negative sequence and ground overcurrent protection
- Overexcitation
- Generator unbalance
- CT failure for each CT bank, VT fuse failure
- Breaker failure
Communications
- Networking interfaces: up to three Ethernet ports 100Mb fiber or copper, RS485, RS232, RS422, G.703, C37.94
- Multiple protocols: IEC 61850, DNP 3.0 and Modbus® serial/TCP, IEEE 1588, IEC 60870-5-104 and 103, PRP, SNTP, HTTP, TFTP, EGD
- Direct I/O: secure, high-speed exchange of data between URs for direct transfer trip (DTT) and I/O extension applications
IEC 61850 Process Bus Interface
- Robust communications with up to 8 HardFiber Bricks
- Redundant architecture for dependability and securityMonitoring and Metering
- Metering: current, voltage, power, energy, frequency
- Advanced recording capabilities deliver a 1024 event recorder, configurable and extended waveform capture and data logger
- Advanced relay health diagnostics
- P & M class synchrophasors of voltage, current and sequence components: 1 to 120 frames/sec
EnerVista™ Software
- Graphical Logic Designer and Logic Monitor to simplify designing and testing procedures via EnerVista UR Engineer
- Service and update notification toolset ensures device documents and software are up-to-date via EnerVista Launchpad
- EnerVista Integrator providing easy integration of data in the G60 into new or existing monitoring and control syste
