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Genuine Automation Parts | Worldwide Express Delivery | 12-Month Warranty — [GET A QUOTE]
The GE Multilin UR 8LH is a high-precision analog input module engineered for the GE Multilin Universal Relay Series. Designed for mission-critical substation automation, the module provides accurate acquisition of current...
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The GE Multilin UR 8LH is a high-precision analog input module engineered for the GE Multilin Universal Relay Series. Designed for mission-critical substation automation, the module provides accurate acquisition of current transformer (CT) and voltage transformer (VT) signals, enabling reliable protection, monitoring, and measurement for electrical power systems.
With advanced signal conditioning and built-in diagnostics, the UR 8LH ensures stable data acquisition while supporting the protection logic of the relay system. Its robust construction and integrated monitoring functions help maintain system integrity in demanding utility and industrial environments.
| Parameter | Specification |
|---|---|
| Module Type | CT/VT Analog Input Module |
| Manufacturer | GE Multilin |
| Supported Series | Universal Relay (UR) Platform |
| Input Voltage Supply | 100–240 V AC, 50–60 Hz |
| Operating Thermal Range | -10°C to +50°C |
| Physical Dimensions | 200 mm × 150 mm × 100 mm |
| Net Weight | 1.5 kg |
| Diagnostic Capability | Integrated self-monitoring for analog signal integrity |
| Safety Interlocks | Automatic fault-triggered alarm and protection blocking |
The GE Multilin UR 8LH incorporates advanced diagnostic algorithms that continuously monitor the integrity of analog input channels. If a measurement anomaly or internal hardware issue is detected, the module automatically generates a system alarm and temporarily blocks associated relay trip outputs. This protective mechanism prevents false operations and enhances overall system safety.
For optimal performance, proper system integration requires verification of CPU firmware compatibility within the Universal Relay rack assembly. Ensuring firmware alignment allows the module to communicate effectively with other relay components and maintain accurate data processing across the protection system.
Is this module hot-swappable in a running UR chassis?
It is strongly recommended to de-energize the relay rack before inserting or removing the UR 8LH module. This precaution helps prevent electrical transients and avoids potential communication errors on the relay backplane.
How does this module handle sensor calibration?
The module supports digital calibration through the UR configuration software suite, allowing engineers to adjust CT and VT ratio parameters during system commissioning to ensure accurate measurement and protection performance.
