Generator Protection

Multilin G30

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Built on the industry-leading UR platform, the G30 provides advanced protection for small to medium-sized steam, hydraulic and combustion-turbine generators. The G30 is also well suited for applications where both the generator and transformer are in the same zone of protection, providing the required protection in one device. The G30 provides advanced communication with an integrated managed Ethernet switch, while supporting standard communication protocols including IEC 61850.

Key Benefits
  • Complete protection for small to medium-sized generators and transformers

  • Advanced IEC 61850 Ed. 1 and Ed. 2 certified implementation, complete settings via SCL files and flexible process bus support (IEC 61850-9-2LE or IEC 61850-9-2 Hardfiber) ensures interoperability, device managing optimization and reduced cost of ownership

  • Routable GOOSE (R-GOOSE) enables GOOSE messages going beyond the substation, which enables wide area protection and control applications

  • Combined generator and transformer protection

  • Robust network security enabling Critical Infrastructure Protection through user command logging, and dual permission access control

  • Application flexibility with multiple I/O options including high density I/O, programmable logic, modularity, and specific customization

  • High-speed peer-to-peer communications allowing reduction of relay-to-relay wiring and associated installation costs

  • An integrated large, full color display, provides real-time visualization and control of the protected bay, via a bay mimic as well as annunciator functionality and graphical visualization of phasors

  • Small to medium-sized generators typically driven be steam, gas or hydraulic turbines

  • Distributed generation (DG) interconnect protection

  • Combined generator and transformer in the zone of protection

  • Pumped storage generators

What's New
  • New and Enhanced Communication Capabilities

  • Cyber Security - CyberSentry UR (FW v7.xx)

  • Fully Compatible with GE's Multlilin HardFiber System

  • Extended Oscillography Records (FW v7.xx)

  • New and Enhanced Protection and Control Functionality

  • Protection and Control Functionality