Description
The GE Multilin L30 (Model: L30N03HKHF8LH6ULXXNXXSXXUXXW7I) is a sophisticated protection and control relay from the Universal Relay (UR) platform. Specifically engineered for transmission and distribution lines, the L30 provides high-speed, reliable line current differential protection. It is designed to minimize the impact of faults by delivering ultra-fast tripping times, utilizing advanced fiber-optic communication to compare current measurements between line terminals, ensuring optimal grid stability and asset security in utility environments.

📋 Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | GE Multilin UR Series L30 Line Current Differential Relay |
| Model Number | L30N03HKHF8LH6ULXXNXXSXXUXXW7I |
| Core Function | High-speed current differential protection (87L) |
| Usage | Utility-grade power transmission and distribution lines |
| Communication | Integrated fiber-optic interface for inter-terminal data |
| Protection Elements | Phase/Ground overcurrent, sync-check, breaker failure |
| Power Supply | High-range universal AC/DC input |
| Mounting Style | 19-inch rack-mount (Standard UR chassis) |
| Dimensions | Standard UR footprint (approx. 483 x 178 x 280 mm) |
| Weight | Approx. 8.5 kg |
🚀 Recommended Series Models
These UR Series components are frequently integrated alongside the L30 for comprehensive substation automation:
- D60 – Line Distance Protection Relay
- C60 – Breaker Management Relay
- F60 – Feeder Protection Relay
- B30 – Busbar Differential Protection Relay
- T60 – Transformer Protection Relay
- M60 – Motor Protection Relay
- UR-CHASSIS-19 – Standard 19-inch rack enclosure
- P50 – Distributed I/O expansion module
- L90 – Line Differential Protection System (Higher current capability)
- UR-PS-01 – Redundant Power Supply module for UR platform
Technical Note: The long-form order code provided (L30N03HKHF8LH6ULXXNXXSXXUXXW7I) signifies a highly customized hardware configuration, including specific I/O cards, communication interface modules (likely fiber-optic/G.703), and protection logic features. Please ensure that replacement units are cross-referenced with your original site specification sheet, as the UR series is modular and highly configurable.

