GE Multilin L90A00HCHF8AH6UL6UN6CS6UU6CW76 Line Differential Relay

Protection Features

• High-Speed Fault Clearance: The L90 provides high-speed phase-segregated fault clearance, suitable for both single and three-pole tripping applications.
• Protection Mechanisms: Includes phase-segregated line current differential with adaptive restraint, ground differential, in-zone transformer protection, and stub bus protection.

Distance Protection

• Zones: Offers 5 zones for phase and ground distance protection.
• Customization: Features customizable pilot schemes that ensure high-speed single-pole tripping.

Transformer Monitoring

• In-Zone Power Transformer: Facilitates cost savings on current transformers (CTs) and protection device requirements.

Display

• Integrated Display: Equipped with a large, full-color display.
• Visualization: Provides real-time visualization and control of the protected bay, including a bay mimic, annunciator functionality, and graphical visualization of phasors.

Communication

• IEC 61850 Support: Advanced implementation of IEC 61850 Ed. 1 and Ed. 2.
• Settings and Process Bus: Complete settings via SCL files and support for comprehensive process bus options (IEC 61850-9-2LE, IEC 61869, or IEC 61850-9-2 Hardfiber), ensuring interoperability, optimized device management, and reduced cost of ownership.