The GE Multilin UR67H is a high-performance 8-channel digital input module designed for the Universal Relay series. It provides reliable status monitoring and signal processing for substation automation, featuring a compact design and seamless integration for advanced power system protection and control.
The General Electric UR67H serves as a high-density digital interface designed specifically for the Multilin Universal Relay (UR) platform. This module expands the monitoring capabilities of power system protection schemes by providing eight dedicated digital input channels. It facilitates the real-time acquisition of status data from primary equipment, such as circuit breakers, disconnect switches, and external sensors. By converting physical contact closures into digital signals, the UR67H enables the central processing unit to execute complex logic for protection, control, and automation sequences across utility and industrial power networks.
Engineers typically deploy the UR67H in environments requiring robust electromagnetic compatibility and high reliability. The module integrates seamlessly into the UR chassis, where it contributes to comprehensive substation automation. Furthermore, its hardware design prioritizes low latency, which is essential for time-critical tripping logic and sequence-of-events (SOE) recording. Because it supports a wide range of voltage thresholds, the module remains adaptable to various station battery voltages. Consequently, this flexibility ensures that the UR67H can monitor auxiliary equipment status without requiring additional interposing relays, thereby simplifying the overall wiring architecture.
The implementation of the UR67H module significantly improves the diagnostic depth of a protection relay system. Since the module communicates directly with the internal bus of the Multilin relay, it eliminates the communication delays often found in external I/O solutions. Additionally, the rugged construction complies with stringent utility standards for vibration and temperature resilience. Therefore, this module provides a stable interface for critical feedback loops, ensuring that the protection system receives accurate data even during severe electrical faults or environmental stress.
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