ABB RARIC Shaft-Current Relay Datasheet
Summary
Guardian of large industrial machinery, this system monitors critical shaft current to prevent catastrophic failure from internal electrical anomalies. It continuously detects overcurrents, asymmetry, and induced voltages that can damage rotors during operation. The accompanying manual provides comprehensive technical coverage for electricians and plant engineers, detailing the installation, configuration, and troubleshooting of various protective relays (e.g., RARIC). Use it for ensuring maximum uptime and safety in powerful industrial power generation units.
Page 1 Text Content
ASEEA
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Page Summary Contents For ABB RARIC Shaft-Current Relay Datasheet
Manual Details
| Brand | Current |
|---|---|
| Pages | 4 |
| File Size | 434.94 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What specific condition does this relay detect?
It monitors current flow in the shaft to detect deviations that could damage the bearing or affect the magnetic circuit.
What auxiliary voltage are these relays designed for?
The permissible auxiliary voltages commonly include 100-110 V or 220 V AC at 50-60 Hz, depending on the specific model.
How must a comprehensive test of the relay be performed?
A complete subsidiary test requires using a specialized auxiliary test plug inserted into the Test Switch mechanism.
What is the maximum permissible ambient temperature?
The document specifies that the permitted ambient temperature range includes concentrations requiring proper cooling measures.