Product Overview

The UR8FV is a CT/VT relay module used with GE Multilin UR Series (Universal Relay) platforms to bring transformer secondary signals into the relay for protection, metering, and monitoring functions. It is intended for applications where accurate acquisition of feeder or transformer current and voltage quantities is required for protective element performance and operational visibility.

This module supports standard CT and VT secondary interfaces and is typically installed in protection and control panels for substations, industrial distribution systems, and critical power loads. Correct operation depends on matching the module type to the installed UR relay chassis and configuring scaling and ratios within the host relay settings.

Hardware Parameters

• Brand: GE

• Product Family: Multilin UR (Universal Relay)

• Module Category: CT/VT Measurement Module

• Product Type: Relay Module

• Model / Order Number: UR8FV

• Primary Function: Current and voltage measurement interface for UR Series relays

• Transformer Input Capability (as specified):

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

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

• VT Input: Four-terminal voltage transformer input

• Frequency Range: 45–65 Hz

• Measurement Performance (as provided):

• Current Accuracy: ±0.5% of full scale

• Voltage Accuracy: ±0.2% of full scale

• Protection Scheme Support (application-dependent):

• Provides measured quantities used by the relay for protection elements and fault detection

• Suitable for ground fault measurement schemes when configured with the proper grounding approach and relay settings

• CT/VT ratios, scaling, and metering assignments are defined in the host UR relay configuration

• Supply and Logistics:

• Condition: Brand New

• Availability: In Stock

• Lifecycle Status: Active

• Product Origin: USA

• Minimum Order Quantity: 1

• HS Code: 8537101190

• Weight: 0.36 kg

• Dimensions: 8.2 × 12.2 × 6.0 cm

• System Type: DCS / Protection & Control Panel

Industrial Applications

• Substation feeder protection using UR Series relays with CT/VT measurement inputs

• Transformer-connected distribution circuits requiring voltage and current supervision

• Industrial switchgear panels for metering, alarming, and protective trip logic

• Ground fault detection schemes using measured residual/ground current channels

• Maintenance replacement and installed-base support for UR relay measurement modules