The Multilin UR and URPlus series provide a future-ready foundation for protecting critical assets across the entire grid. With field-proven algorithms, flexible I/O and logic, redundant communications, and comprehensive cybersecurity, they deliver both security and actionable intelligence. The integrated EnerVista tools reduce engineering effort, spare parts, and fault resolution time. As renewable integration and digital substations advance, this scalable platform ensures reliable, cost-effective, and standards-compliant protection and control for years to come.
The Multilin UR and URPlus family, from GE Digital Energy, offers a single scalable platform for protection, control, monitoring, and metering across generation, transmission, distribution, and industrial sites. Its common hardware design lets users mix power supplies, CPU, AC inputs, digital I/O, and communication modules in a plug-and-play manner, simplifying spares and retrofitting legacy schemes. Engineers choose these relays for proven algorithms – distance, differential, overcurrent, and generator ground fault – plus the flexibility to adapt to changing conditions. URPlus models double event storage to 8192 records, aiding post-fault analysis. Both vertical and horizontal form factors fit tight cabinets, ensuring reliable operation in new or existing substations.
Advanced Protection and Built-In Automation Intelligence
Every UR relay integrates high-speed protection for generators (G60, G30), transformers (T60, T35), lines (L90, L60, D60), busbars (B90, B95plus), capacitors (C70), feeders (F60, F35), and motors (M60). Operating times reach one cycle for differential and sub-cycle for D90plus, critical for tight breaker-failure margins. The FlexLogic engine enables custom trip schemes, interlocking, and dynamic settings without external auxiliaries, adapting to real-time grid changes. All units include accurate metering (voltage, current, power, harmonics) and a built-in disturbance recorder with 40 analog and 64 digital channels, replacing separate fault recorders. Synchrophasor (PMU) support per IEEE C37.118 and IEC 61850-90-5 allows wide-area monitoring and streaming to multiple clients. Event summaries and oscillography pinpoint fault locations, speeding restoration and reducing downtime for utilities and plants alike.
Robust Communication, Cybersecurity, and Software Ecosystem
Three independent Ethernet ports support simultaneous SCADA, engineering, and GOOSE traffic, with PRP redundancy (IEC 62439-3) ensuring zero-switchover network availability. The relays speak IEC 61850 Ed.2, DNP3, Modbus, IEC 60870-5-104/103, and IEEE 1588 for microsecond-accurate sync over LAN, eliminating IRIG-B wiring. CyberSentry delivers role-based access, RADIUS/AAA, Syslog logging, and strong passwords to meet NERC CIP and NIST requirements. The EnerVista suite – Launchpad, Viewpoint Monitoring, UR Engineer, and Maintenance – simplifies configuration, logic design, HMI, and audit reporting. The HardFiber Process Bus replaces copper with fiber-optic IEC 61850-9-2, cutting installation labor and lifecycle costs. This convergence of protection, control, and cyber-defense empowers resilient, easy-to-manage power systems.
Recommended Model
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UR 6UH |
UR 9EH UR9EH |
UR1HH |
UR5CH |
UR5EH |
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UR67H |
UR6AH |
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UR6AV |
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UR6BH |
UR6CH |
UR6CH |
UR6CV |
UR6DH |
UR6DH |
UR6DH |
UR6DV |
UR6EH |
UR6EV |
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UR6FH |
UR6NH |
UR6PH |
UR6TH |
UR6UH |
UR6UH |
UR6UH |
UR7BH |
UR7BH |
UR7BH |
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UR7CM |
UR7CV |
UR7IH |
UR8AH |
UR8CH |
UR8FH |
UR8FH |
UR8FH |
UR8FV |
UR8GH |
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