PRODUCT DESCRIPTION — GE UR8NV ANALOG INPUT MODULE

Overview / Product Summary

The GE UR8NV is an analog input module designed for the GE Multilin UR Series of modular relays. It captures current and voltage signals from CTs and VTs, ensuring highly accurate measurements for protection, metering, and control. Moreover, the module provides enhanced diagnostics that detect internal channel faults, preventing false tripping and improving overall system reliability. Its rugged design supports long-term performance in demanding industrial and utility environments.

Technical Specifications

Attribute — Specification
Model Number — UR8NV
Type — Analog Input Module
System Compatibility — GE Multilin UR Series (Universal Relays)
Analog Inputs — 8 CT inputs (current transformer channels)
Voltage Inputs — Integrated VT interface (standard secondary voltage range)
Diagnostics — Enhanced CT/VT channel health monitoring
Accuracy — Protection-grade accuracy; ±0.2% for metering
Isolation — Galvanic isolation between inputs and CPU
Weight — 600 g
Operating Temperature — –40 °C to +70 °C
Storage Temperature — –40 °C to +85 °C
Country of Manufacture — USA
Applications — Generator, transformer, motor, and line protection relays

FAQ

Q1: Which relays are compatible with the UR8NV module?
It is compatible with all GE Multilin UR Series Universal Relays.

Q2: How many analog inputs does the module support?
The UR8NV supports eight CT inputs and an integrated VT interface for voltage measurement.

Q3: Does the module provide diagnostic features?
Yes, it offers enhanced CT/VT channel health monitoring to prevent incorrect relay operation.

Q4: Can it handle single-ended and differential measurements?
Absolutely, the module supports both measurement modes for versatile protection schemes.

Q5: Is the UR8NV suitable for harsh industrial environments?
Yes, it operates reliably from –40 °C to +70 °C with rugged construction.