Description
Technical Parameter Introduction
| Parameter Name | Specification & Technical Indicator |
| Brand | GE Multilin (Universal Relay Series) |
| Base Model | G60 Generator Protection System |
| Full Order Code | G60-N03-HKH-F8L-H5D-M8L-PXX-U67-W7H |
| CPU Type & Comms (Slot A) | N: RS485 + 10BaseF Fiber Optic + 10BaseT Ethernet (PRP support) |
| Human Machine Interface (Slot B) | 03: Enhanced Front Panel with Large Color Graphical LCD Display |
| Power Supply (Slot C) | HKH: 125/250 V AC/DC standard power supply control module |
| Digital I/O (Slot D) | F8L: 8 Form-A Voltage Outputs with high-speed pilot interruption |
| Digital I/O (Slot E) | H5D: 4 Form-C Relays and 8 Digital Inputs |
| Current / Voltage Inputs (Slot F) | M8L: Standard 4CT / 4VT current and voltage transformer configuration |
| Digital I/O (Slot G) | PXX: Empty slot / No additional digital configuration allocated |
| Transducer I/O (Slot H) | U67: 8 Analog Inputs (d.c. mA type) for external transducer values |
| Cyber Security & Control (Slot W) | 7H: Advanced Security Protection, Advanced Control Logic, Automation Engine |
| Protection Algorithms | 87G Restrained Differential, 100% Stator Ground (3rd harmonic), 24 Volts/Hz |
The GE Multilin G60 (G60N03HKHF8LH5DM8LPXXU67W7H) is a comprehensive micro-processor based protection, control, and monitoring system tailored for small, medium, and large utility-scale steam, hydro, and gas generators. Equipped with an upgraded color graphical user interface, specialized 4CT/4VT analog measurement engines, and robust field security firmware, this unit delivers high-speed electrical protection, complete oscillography fault recording, and reliable breaker control across harsh substations and generation facilities.
Differences from Similar Models
- HMI Screen Upgrades: The base 03 design parameter distinguishes this version from the standard alphanumeric text displays (01 or 02 variants). It boasts an interactive graphical Mimic designer directly on the front panel faceplate for clear diagnostic tracking.
- Targeted Transducer Integration: Unlike standard protective relays that purely process raw CT/VT metrics, this specific U67 designated build houses dedicated multi-channel d.c. mA inputs to ingest structural plant metrics like vibration, gate positions, or ambient temperature directly into the protection matrix.
- Enhanced Cybersecurity Matrix: Utilizing the advanced 7H architecture code rather than entry-level automation layers, this module includes comprehensive role-based access controls (RBAC), RADIUS authentication, and encrypted communications to safeguard system firmware against unexpected digital exploits.
Product Operation Tips
- Enabling Test Mode Safeguards: Before initiating injection testing with secondary calibration hardware, ensure the relay is switched into “Test Mode” via the setup tree. This isolates internal logic blocks, forcing output relays to remain open and preventing unintentional tripping of main circuit breakers.
- Dual-IP Configuration Over Redundant Networks: When mapping the advanced Slot-A network ports over Parallel Redundancy Protocol (PRP) configurations, verify that both LAN A and LAN B switches match timing topologies exactly. Unsynchronized communication paths will drop backup data packets, inducing network communication tracking alarms.
- CT Secondary Open-Circuit Interlocks: The internal measurement boards (M8L) feature intelligent current transformer monitoring. If a wire disconnection occurs on a CT circuit under load, the relay immediately suppresses sensitive protection logic (such as neutral overcurrent) to prevent false neutral current calculations from dropping the generation unit offline.
