Description
The GEC ALSTHOM LFCB 102 (LFCB102S50203D) is a high-speed Digital Current Differential Relay engineered for the primary protection of transmission lines, cables, and transformers. Renowned for its reliability in utility and industrial power systems, the LFCB 102 provides unit protection with high sensitivity to internal faults while maintaining exceptional stability against external disturbances, such as through-faults and power swings.
Technical Specifications
| Specification | Details |
| Brand | GEC Alsthom (Now Alstom/GE Grid) |
| Model | LFCB 102 |
| Part Number | LFCB102S50203D |
| Function | Current Differential Protection (87L) |
| Application | Transmission lines and cable feeders |
| Communication | Dedicated fiber-optic or pilot-wire link |
| Operation Speed | High-speed (typically sub-cycle) |
| Product Color | Industrial Gray / GEC Standard |
| Hot-Swappable | No (Fixed-chassis design) |
Product Features
- 🛡️ Unit Protection: Offers absolute selectivity by comparing current magnitudes and phases at both line terminals, ensuring only faulty sections are tripped.
- ⚡ High-Speed Performance: Designed to clear faults in milliseconds to minimize damage to expensive transmission infrastructure and enhance system stability.
- 🌐 High Stability: Features advanced biased-differential characteristics to prevent unwanted tripping during heavy through-faults or current transformer (CT) saturation.
- 📊 Integrated Diagnostics: Provides detailed event recording and fault location data for post-fault analysis and rapid system restoration.
- ⚙️ Robust Communication: Utilizes dedicated communication links to synchronize data between line ends, ensuring reliable performance even over long distances.
Recommended Similar Models (GEC Alsthom/Alstom Protection Series)
- LFCB 101 (Similar differential series)
- LFCB 103 (Three-terminal line protection)
- LFZP (Distance protection relay)
- LIFD (Overcurrent relay)
- P541 (MiCOM series – modern equivalent)
- P542 (MiCOM series – modern equivalent)
- P543 (MiCOM series – modern equivalent)
- LFCP (Differential protection)
- KCGG (Distance protection)
- KDI (Directional overcurrent)
For technical manuals, protection setting configuration, or to inquire about availability for this GEC ALSTHOM LFCB 102 Digital Current Differential Relay, please visit our professional industrial catalog.
