GE Multilin UR-67H Universal Relays series Digital I/O Module

Description

The GE Multilin UR-67H is a specialized digital input/output communication interface card developed for the Universal Relays (UR) platform. This high-density contact execution module provides 8 Form-A digital outputs designed to safely interface with heavy-duty switching apparatus, circuit breakers, and auxiliary field systems within medium-to-high voltage electrical substations.

The primary utility of the UR-67H is to transition internal relay protection algorithms into secure physical control outputs. Operating within compatible protection devices like the B30 Bus Differential Relay or T60 Transformer Protection System, it receives high-speed logic commands over internal backplane links to prompt trip or signal controls across external substation environments. The module utilizes non-monitoring, non-latching mechanical contacts to provide precise macro-level power system management without adding systemic auxiliary circuit overhead. Configuration, routing logic, and status mappings for the component are fully managed via EnerVista software suites.

Features

• Form-A Standard Contacts: Integrated with 8 discrete Form-A (normally open) non-latching and non-monitoring mechanical relay outputs.
• Universal Relay Synchronization: Fully compatible with a wide assortment of UR series protective relay frames, handling up to 64 contacts per total platform system.
• EnerVista Software Support: Integrates seamlessly with EnerVista setup applications for contact assignment, testing, and operational lifecycle mapping.
• Substation Hardened Architecture: Engineered for heavy industrial deployments, providing secure mechanical switching for power plant and utility systems.

Applications

• Bus Differential Tripping Logic: Installed inside units like the B30 relay to manage high-speed physical breaker isolation commands.
• Transformer Control Automation: Integrated with UR system configurations to dispatch automated auxiliary control actions for transformer equipment.
• Industrial Interlocking Systems: Provides physical status interlocks between switchyard machinery, disconnect switches, and central control networks.

Technical Specifications

Installation Guidelines

• Complete Isolation: Disconnect all main power links, external operational voltage paths, and logic control sources before initiating card removal or installation procedures.
• Static Hazard Mitigation: Always wear a properly connected electrostatic discharge (ESD) wrist strap to mitigate high-potential component damage during hardware handling.
• Relay Compatibility Validation: Cross-reference the specific UR platform configuration breakdown or instruction manual order matrix; options with an "XX" indicate the slot was originally left blank, confirming space for physical field retrofit or module upgrades.
• Card Slot Verification: Insert the module firmly into its designated horizontal slot guided by the internal chassis rails until the rear edge connector is completely seated. Tighten faceplate mounting hardware securely.