GE Multilin UR-RHV Universal Relay Series Power Supply Module

Description

The UR-RHV functions as a high-reliability Power Supply Module designed for General Electric's Universal Relay (UR) series protection and management platforms. This hardware subassembly delivers vital operational power directly to the internal electronics and CPU framework of the host relay. Specifying the "V" variant within the order structure denotes that this module is optimized exclusively for vertically mounted relay chassis, providing a space-saving option for compact control panels and enclosures where mechanical footprint constraints are severe.

This RH-generation module accepts wide-range AC and DC auxiliary input distributions, rendering it highly adaptable across diverse substation battery banks and power line conditions. The system supports full parallel redundancy when dual modules are integrated into a single UR chassis layout. In a redundant pairing configuration, load-sharing occurs continuously; a failure on one power path initiates an instantaneous transition of the full load to the parallel supply with zero system downtime. Diagnostic LEDs on the front faceplate provide rapid notification of power supply faults to streamline maintenance while maintaining live protection.

Features

• Vertical Form Factor Execution: Optimized mechanical profile engineered precisely for space-constrained vertical mount UR chassis variants.
• Redundant High-Availability Operation: Supports parallel dual-module installation for immediate load switchover without interruption to control processing.
• Flexible Input Architecture: Dual compatibility with high-voltage DC distribution systems and standard AC power infrastructure.
• Front-Panel Status Monitoring: Local LED indicators provide continuous diagnostics and fault classification directly to the faceplate interface.
• Generation Cross-Compatibility: Seamlessly integrates into standard UR systems, operating reliably in tandem with identical generation modules.

Applications

• Power distribution control panels utilizing vertical mount Universal Relays
• Dual-redundant substation protection systems (e.g., D30, C30, T60 relays)
• Compact industrial switchgear automation with restricted mounting space
• Replacement and upgrade of legacy generation UR-1H power supply variants

Technical Specifications

Installation Guidelines

Mounting Variant Verification

Prior to insertion, cross-reference the physical orientation of the target enclosure card slot. The UR-RHV is built with mechanical dimensions tailored solely for vertical-mount chassis systems. Attempting installation into a standard horizontal-mount chassis slot may result in binding or electrical bus misalignment.

Redundancy Configuration Parameters

When utilizing two power modules to establish system redundancy, ensure that both units originate from the same hardware generation. Mixing different engineering generations (such as pairing an RH series module with a legacy or newer group) within a single host relay is not recommended and could disrupt uniform load-sharing.

Electrostatic Discharge and Isolation

• Fully disconnect all input power leads from the main external circuit breaker before working inside the equipment rack.
• Ensure proper grounding through a specialized anti-static wrist strap throughout the module exchange process.
• Fasten all structural faceplate mounting screws securely to preserve adequate electrical chassis grounding and thermal bonding.

FAQ

What specific protection relay lines can accommodate this module?

The module is universally compatible across the wider Universal Relay family, which includes specialized hardware platforms such as the D30 line distance relay, the C30 I/O logic controller, and the T60 transformer management relay.

What happens if one of the modules fails during parallel redundant operation?

If a fault is encountered on one supply path, the parallel redundant module instantly assumes the full operational load of the power system. This transition happens automatically with zero downtime, maintaining continuous uptime for the protection relays.

Can this unit be interchanged freely with horizontal modules from the same generation?

This module cannot be direct-fit interchanged with horizontal versions. The mechanical profile and order code are specialized for vertical systems to accommodate limited spacing layouts within specific power control cabinets.