GE Multilin UR8LM CT/VT Input Module | Universal Relay Accessory

Product Description

The GE Multilin UR8LM is a dedicated CT/VT input module designed to expand the measurement and protection capabilities of GE’s Universal Relay (UR) platform. It allows direct connection to up to 4 current transformers (CTs) and 4 voltage transformers (VTs), converting analog signals into precise digital data for relay protection, monitoring, and metering.

Technical Overview

• Type: CT/VT Input Module

• Inputs: 4 CT + 4 VT

• Module Power Supply: 24 V DC

• Operating Temperature Range: –40 °C to +70 °C

• Communication Protocols: Modbus RTU/TCP, TCP/IP, OPC

• Weight: 350 g

• Compatibility: GE Multilin UR series relays

Key Features

• Provides accurate and reliable CT/VT signal acquisition for advanced relay protection

• Modular design allows flexible system expansion and quick replacement

• Integrated monitoring and metering enable real-time system diagnostics

• Supports high-speed communications for seamless substation and industrial network integration

• Rugged construction ensures operation in extreme environmental conditions

Applications

Ideal for utility substations, industrial power systems, and commercial electrical grids, the UR8LM module is used for protection, metering, and monitoring where precise CT/VT measurements are critical.

FAQ / Engineer Notes

Q: Can the UR8LM operate independently?
A: No, this module must be installed within a GE UR relay chassis.

Q: How do I ensure accurate measurements?
A: Match the CT/VT ratings with the module’s specifications and ensure proper grounding and wiring.

Q: Are there similar modules in the UR series?
A: Modules like UR8IM (digital input) or UR8AO (analog output) provide complementary functionality within the UR platform.