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Product Overview

The GE Multilin G60 (Order Code: G60N03HKHF8LH5DM8LPXXU67W7H) stands as a high-tier protective solution within the Universal Relay (UR) family. Specifically architected for medium to large-scale generators, this system manages the safety of steam, gas, and hydro turbines. We supply this unit as 100% Brand New, providing factory-original algorithms that comply with IEEE C37.102 standards. This configuration integrates a managed Ethernet switch and high-density modular I/O, specifically optimized for complex pumped storage applications and multi-circuit hydro units where deterministic communication and sophisticated logic execution are mandatory.

Part Number Breakdown (G60 Specifics)

The G60 configuration utilizes a modular alphanumeric code to define its hardware capabilities:

  • G60: Generator Protection System base series.

  • N: Integrated Managed Ethernet Switch.

  • 03H: Specific Power Supply and CPU processing capabilities.

  • K/H/F: Defined I/O module arrangements for CT/VT inputs and digital signals.

  • 8L/H5: Communication port types (Copper/Fiber) and protocol support.

  • U67W7H: Advanced software options including PMU, 100% Stator Ground, and FlexLogic.

Technical Specifications

This G60 configuration offers a comprehensive suite of monitoring and diagnostic tools for utility-grade assets.

Parameter Specification
Protection Elements 100% Stator Ground, Field Ground, Loss of Excitation (40), Reverse Power (32), Out-of-Step (78)
Logic Engine FlexLogic™ (Up to 1024 lines of programmable logic)
Data Capture 64 samples per cycle (Oscillography), 1024 Sequence of Event (SOE) records
Sync Protocols Integrated PMU support per IEEE C37.118
Networking Integrated Managed Ethernet Switch (10/100 Mbps)
Cybersecurity CyberSentry™ (RBAC, Encryption, Audit Trails)
Communication IEC 61850, Modbus TCP/RTU, DNP 3.0, IEC 60870-5-104
Operating Temp –40°C to +85°C (–40°F to +185°F)
Weight 1.91 kg (4.2 lbs)

Engineering Advantages

  • Elimination of External Hardware: The integrated managed Ethernet switch simplifies the network topology. This allows direct connection to the substation LAN without requiring external industrial switches, reducing points of failure and cabinet wiring complexity.

  • Advanced Stator Protection: The relay implements 3rd harmonic neutral undervoltage detection. This ensures 100% stator ground protection, identifying faults near the generator neutral that standard overcurrent elements might miss.

  • Customizable Logic Control: The FlexLogic™ engine executes complex user-defined control schemes. It handles multi-breaker arrangements and automatic synchronization logic, replacing the need for external auxiliary relays in hydro and gas turbine control systems.

  • Substation-Hardened Reliability: Designed for extreme environments, the G60 operates from –40°C to +85°C without internal fans. Its rugged chassis withstands high levels of EMI and vibration, ensuring the relay maintains protection during severe grid faults.

FAQs

  • Does this G60 configuration support IEC 61850 GOOSE messaging?

    Yes. The integrated managed Ethernet switch and the UR platform software fully support IEC 61850. This enables high-speed peer-to-peer GOOSE messaging for interlocking and fast load shedding without hardwiring digital signals between relays.

  • How does the G60 handle pumped storage unit transitions?

    The G60 features specialized logic to handle the phase-reversal required for pumped storage units. It modifies the protection settings dynamically as the unit transitions between generator and motor modes, eliminating the need for manual secondary CT switching.

  • What is the benefit of the integrated PMU (Phasor Measurement Unit)?

    The integrated PMU provides time-synchronized phasor data according to IEEE C37.118. This allows grid operators to monitor wide-area stability and detect oscillations in real-time, significantly improving the generator's contribution to grid resilience.

  • Can I replace an older G60 with this specific code?

    The G60 is highly modular. While the base G60 function remains consistent, you must verify that the I/O and communication modules (represented by the characters in the order code) match your existing field wiring and network architecture.

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