Product Description
GE UR8LH
The GE Multilin UR8LH is a member of the L90 family of Line Current Differential Relays, providing advanced protection, control, and monitoring for transmission lines. Engineered for high-speed performance, the UR8LH offers sub-cycle fault clearing to enhance power system stability and minimize equipment damage. It integrates comprehensive protection functions, including phase and ground distance, directional overcurrent, and breaker failure protection, all within a single, modular device. With flexible communication options and support for protocols like IEC 61850, the L90 relay seamlessly integrates into modern substation automation systems, making it an ideal solution for critical transmission line applications.
Technical Specifications:
- Protection Function: Sub-cycle line current differential (87L), phase/ground distance (21P/21G), and directional overcurrent (67)
- Sensing Input: 1/5 A phase and neutral current inputs, 120/240 V AC voltage inputs
- Communication: Modular communications with options for Ethernet (10/100BASE-TX, 100BASE-FX), RS485, and support for protocols including IEC 61850, DNP 3.0, and Modbus RTU/TCP
- Key Features: Integrated breaker control, auto-reclosing, synchronism check, high-accuracy metering, and extensive event recording capabilities
GE UR8LH
GE UR8LH L90 Line Current Differential Relay for high-speed transmission line protection. Features sub-cycle fault clearing, integrated control, and advanced IEC 61850 communications.
