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True RMS measurement for accurate fault detection
The G4AC is widely used in substation automation for long-distance telemetry over existing power conductors
Refer to the manual for frequency roll-off at longer lengths
140 mA (24 V DC)
REF630 1KHL160003R0001 ABB Feeder Protection Control Panel Automation Cable True RMS measurement for accurateOverview The ABB REF630 1KHL160003R0001 is a high performance feeder protection and control relay engineered for medium voltage distribution networks. As part of the Relion 630 series, it is optimized for radial, looped, and meshed power systems including those incorporating distributed energy resources. This relay unifies protection, control, measurement, and monitoring into a single intelligent unit, enabling grid operators to detect faults rapidly,
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