Product Overview

The UR8LV is a CT/VT measurement module intended for use with GE Multilin Universal Relays (UR Series). It provides the relay with transformer secondary inputs used for protection, metering, and monitoring functions in power systems. By accepting standard current and voltage transformer signals, the module supports accurate acquisition of line quantities needed for protective elements, event records, and operational supervision.

This part is commonly installed in substation and industrial switchgear panels where modular relay hardware is used to maintain serviceability and simplify maintenance. Since the UR8LV has a defined discontinuation date, it is typically sourced for installed-base support and replacement of existing UR relay configurations.

Key Technical Characteristics

• Brand: GE

• Product Family: Multilin UR (Universal Relay)

• Module Category: CT/VT Module / Measurement Input Module

• Model / Order Number: UR8LV

• Primary Function: CT and VT input interface for UR Series relays

• Transformer Input Capability (typical configuration for this module class):

• Phase CT Inputs: 3 channels, 1 A or 5 A nominal

• Ground CT Input: 1 channel, 1 A or 5 A nominal

• VT Inputs: Multi-terminal voltage transformer inputs for AC line sensing (panel and relay configuration dependent)

• Operational Characteristics:

• Provides an isolated, relay-integrated measurement interface for current and voltage sensing

• Supports relay diagnostics and signal validation functions through the host UR relay firmware

• Designed for continuous operation in protection and control cabinets

• Wiring and Installation Notes:

• Field termination is typically performed using appropriately rated conductors per the UR relay installation manual

• CT polarity, grounding practices, and VT fuse/protection schemes must follow substation standards and site procedures

• Supply and Logistics:

• Condition: Brand New

• Availability: In Stock

• System Type: PLC / Protection Relay System

• Product Origin: USA

• Discontinued On: Dec 31, 2018

• Minimum Order Quantity: 1

• HS Code: 8537101190

• Weight: 0.84 kg

• Dimensions: 6.0 × 19.5 × 17.2 cm

Industrial Applications

• Feeder protection schemes using UR Series relays with CT and VT inputs

• Substation switchgear panels requiring current and voltage measurement to the relay

• Transformer protection and monitoring applications

• Generator and motor protection systems using UR relay hardware

• Replacement module for legacy UR relay installations to restore CT/VT sensing capability