GE fanuc UR-8NH UR Series Analog Input Module

Availability: 10 left in stock

GE UR-8NH Universal Relay 8-Channel Analog Input Card Configured for high-fidelity CT/VT measurement execution in GE Multilin Universal Relay platforms,...

SKU: UR8NH

Manufacturer: GE Fanuc
Product No.: UR8NH
Product Type: Protection Relay Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 900g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

GE UR-8NH Universal Relay 8-Channel Analog Input Card

Configured for high-fidelity CT/VT measurement execution in GE Multilin Universal Relay platforms, the GE UR-8NH (UR8NH Analog Input Module) provides direct physical/electrical execution. The module captures raw secondary currents and voltages from primary power lines and digitizes the analog waveforms for the central processing unit, utilizing 8 discrete channels with full galvanic isolation across the internal backplane architecture.

Hardware Specifications

Parameter	Specification
Model	UR-8NH (UR8NH)
Brand	GE (GE Multilin)
Origin	USA
Weight	0.9 kg
Dimensions	28.0 cm x 21.4 cm x 1.7 cm
Operating Temp	-40 deg C to +85 deg C
Power Consumption	Powered via UR Chassis backplane bus
Module Type	8-Channel CT/VT Analog Input Module
Channel Configuration	8 Channels (8 CT or mixed CT/VT configurations)
Nominal Inputs	1 A or 5 A secondary currents (Field-programmable)
Isolation	Full galvanic isolation (Field terminals to backplane)
System Compatibility	GE Multilin Universal Relay Series (G60, L90, D60, B30)

Backplane Bus Communication Velocity and Firmware Flash Compatibility

The GE UR-8NH utilizes dedicated internal communication paths linked directly to the primary chassis motherboard to maintain real-time wave oscillography synchronization. The module manages I/O density scaling via its 8-channel matrix while maintaining strict firmware flash compatibility with the host controller software profile. Full galvanic isolation boundaries between high-voltage CT/VT field terminals and low-voltage internal logic prevent cross-talk noise, while onboard state registers feed digital values across deterministic backplane bus structures for instantaneous distance and differential protection execution.

Frequently Asked Questions

Q: How do you adjust the nominal current input parameters between 1 A and 5 A settings?

A: The hardware supports field-programmable adjustments via the EnerVista setup software, which modifies internal firmware gain scaling values without requiring physical jumper alterations on the circuit board.

Q: Can this plug-in card be hot-swapped while the Universal Relay chassis is fully energized?

A: No, field engineers must isolate the main power supply and short-circuit all active secondary CT wiring paths prior to inserting or removing the card to prevent hazardous open-circuit voltage transients.

Q: What mechanisms report an internal A/D converter or transformer winding failure?

A: Integrated self-testing diagnostics monitor component health continuously; if conversion parameters drift beyond operating limits, the card asserts a failure flag across the backplane bus to trip the host trouble alarm.

Field Installation Guidelines

Follow these core physical and electrical installation steps during field commissioning:

Align the top and bottom edge guides of the card with the designated slot rails in the 6U Universal Relay chassis.
Push the module inward firmly until the rear backplane interface connector seats completely into the bus motherboard.
Tighten the top and bottom retaining screws on the front faceplate to ensure electrical chassis ground continuity and vibration resistance.
Verify that all external current transformer circuits are shortened and grounded before terminating field wires to the module input terminals.
Ground all analog cable shields at the enclosure entry bar and route signal leads away from high-current AC power cables to prevent electromagnetic coupling.

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