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Protection & Control
Generator Protection



889 Generator Protection System
  • Primary or backup protection for generators
  • Suitable for combined generator and in-zone transformer differential protection
  • Support for a wide range of communications protocols, network architectures, and time synchronization, including Modbus, DNP 3.0, IEC 61850 Edition 2, and IEEE 1588 Time Sync
G60 Generator Protection System
  • Comprehensive protection for AC generators.
  • Suited to any size of generator driven by steam, gas, hydraulic or other turbines.
  • Large color graphical HMI and high density I/O option available.
G30 Generator Protection System
  • Cost effective protection of small to medium sized generators
  • Suited to combined generator and transformer protection.
  • G30 relays are under last-time buy. Orders may be placed until 19th August 2025, and will be fulfilled based upon availability
P343 Medium to Large Sized Generator Management IED
  • Advanced generator management relay for medium/large generators
  • Comprehensive generator and transformer protection and condition monitoring
  • Support for a wide range of communication options including MODBUS, IEC60870-5-103, DNP 3.0 and IEC61850
P341 Interconnection Protection Relay
  • Comprehensive protection for interconnecting distributed resources with the electric power system
  • Provides Dynamic Line Rating (DLR) for transmission line capacity optimization
  • The P341 is under last-time buy. Orders may be placed until 1st December 2024 and will be fulfilled based upon availability. As an alternative, please refer to P14DG or P143 or 850D.
GPM-F Field Ground Protection Module
  • Providing advanced field ground fault protection for generator applications
  • Continuously monitors and protects the generator during stopped, starting and running conditions for increased asset life
P345 Large Generator Management Relay with Stator Earth Fault
  • Advanced generator management relay with low frequency injection 100% stator earth fault for large generators
  • Comprehensive generator and transformer protection and condition monitoring
  • Support for a wide range of communication options including MODBUS, IEC60870-5-103, DNP 3.0 and IEC61850
P14DG Distributed Generator Interconnection Relay
  • Directional Feeder Management relay for small generator protection
  • Available in either a 30TE or 40TE cases
  • TCS and Ethernet communications available together in 40TE case
  • Check sync and voltage restrained overcurrent protection and power function included
GPM-S Stator Ground Protection Module
  • Sub-harmonic injection based stator ground protection provides early detection of ground fault conditions
  • Detect ground faults through 100% of the stator winding including neutral point
489 to 889 Generator Protection System
  • Fast, 3-step solution to upgrade previously installed SR 489 relays to the advanced Multilin 889
  • Eliminates the need for modifications to switchgear cut-outs, re-wiring, and new drawings or re-engineering
P391 Rotor Earth Fault Module
  • Detects rotor earth fault faults in the field winding of the generator.
  • Requires the P34x relay to have the current loop CLIO hardware option fitted.
  • Used with P342, P343, P344, P345 and P346 Generator protection relays
DGPR Retrofit Solution
  • Fully integrated retrofit solution of GE's legacy Multilin DGP Generator Protection Relay
  • Suited for large hydro, gas and steam turbine generators