Description

The GE UR67H serves as a high-speed interface for the Universal Relay (UR) series. This module expands the I/O capacity of Multilin protection and control devices. It specifically facilitates the acquisition of real-time status data from field equipment. By converting physical contact states into digital signals, it enables precise logic execution. This ensures that the central processor makes accurate decisions during critical power system events.

Communication and Scalability

This module excels in managing high-density signal requirements within a single relay chassis. While this specific card provides 8 digital inputs, the UR platform supports broad scalability. The system can manage up to 96 contact inputs when fully populated. Furthermore, the UR67H ensures low-latency communication between the field sensors and the protective relay. This rapid data transfer is vital for maintaining synchronization across complex electrical grids.

Performance and Protection Logic

Engineers designed the UR67H to operate reliably in electrically noisy substation environments. It provides high-speed debounce filtering to prevent false triggering from mechanical contact bounce. Additionally, the module supports advanced timestamping for sequential events recording (SER). This feature allows for detailed post-fault analysis after a system trip. Its robust isolation protects the internal sensitive electronics from high-voltage transients on the field side.

Technical Specifications

Integration and Utility

The UR67H integrates seamlessly into the modular slots of GE Multilin relay frames. This hot-swappable design reduces downtime during hardware maintenance or system expansion. It bridges the gap between auxiliary substation equipment and the main automation network. Consequently, operators gain enhanced visibility into the status of breakers, switches, and transformers. This hardware remains a standard choice for modernizing aging protection infrastructure with digital monitoring.