Description

The General Electric Multilin UR 8AH is a specialized CT/VT (Current Transformer/Voltage Transformer) input module designed for use within the Universal Relay (UR) platform. This horizontal unit is engineered to provide precise analog signal acquisition for protection and monitoring applications, featuring sensitive ground fault detection capabilities.

Features

• Configured for sensitive ground sensing applications.
• Equipped with 4 CT inputs and 4 VT inputs.
• Supports standard 1 A or 5 A current transformer inputs.
• High accuracy signal processing for reliable relay performance.
• Designed for integration into the standard UR chassis environment.

Technical Specifications

Installation Guidelines

• Ensure the relay chassis is powered down before inserting or removing the UR 8AH module.
• Slide the module into the designated horizontal slot of the UR chassis, ensuring proper alignment with the backplane connector.
• Secure the module using the integrated front-panel fasteners to ensure a solid electrical ground connection to the chassis.
• Verify that all CT and VT wiring is correctly terminated according to the specific relay wiring diagram to prevent measurement errors or hazardous open-CT conditions.
• Maintain proper ventilation within the control cabinet to ensure the module operates within its specified temperature range.

FAQ

What is the primary function of the UR 8AH module?

The UR 8AH is an analog input module for the GE Multilin Universal Relay series, specifically designed to process current and voltage signals, including sensitive ground current measurement.

Can this module be used in any UR chassis?

This is a horizontal unit designed for standard UR chassis configurations. Please verify your specific relay model's hardware compatibility before installation.