UR 7DH | GE Multilin UR Series | Inter-Relay Communications Module

Overview  

The GE UR7DH Inter-Relay Communications Module is designed for the Multilin Universal Relay (UR) series. It enables high-speed communication between relays, ensuring reliable coordination and protection across power systems. With integrated diagnostics and robust construction, the UR7DH is built for dependable performance in demanding industrial and utility environments.

Technical Specifications

• Manufacturer: General Electric (GE)

• Model: UR7DH

• Type: Inter-Relay Communications Module

• Communication Channel: Single 1300 nm, single-mode LASER channel

• Compatibility: Fully compatible with GE Multilin UR series relays

• Monitoring: Integrated channel health monitoring for diagnostics

• Power Supply: Powered directly through the connected relay unit

• Frequency: 50/60 Hz

• Operating Temperature: -40°C to +70°C (-40°F to +158°F)

• Dimensions: 152 mm (L) × 178 mm (W) × 38 mm (H)

• Weight: 0.77 kg

Key Features

• High-speed optical communication for relay coordination

• Integrated diagnostics for channel health monitoring

• Powered through relay unit, eliminating external supply needs

• Compact design for easy installation in relay systems

• Rugged construction for reliable operation in harsh environments

Applications

• Substation automation requiring relay-to-relay communication

• Power system protection and coordination

• Industrial control systems with distributed relay networks

• Mission-critical environments needing secure optical communication

FAQ

• Q: What type of communication channel does the UR7DH use?  A: It uses a single-mode LASER channel at 1300 nm.

• Q: How is the UR7DH powered?  A: It is powered through the connected relay unit, requiring no external supply.

• Q: Does the UR7DH provide diagnostics?  A: Yes, it includes integrated channel health monitoring for diagnostics.