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Details the GRD130's function in numerical under and overvoltage protection.
Lists comprehensive protection, monitoring, and communication capabilities of the GRD130 relay.
Covers three independent overvoltage thresholds with inverse or definite time operation.
Details three independent undervoltage thresholds with inverse or definite time operation.
Explains ZPS protection with two independent overvoltage thresholds and calculation methods.
Describes NPS protection with two independent overvoltage thresholds and time operation settings.
Details electrical ratings, overload capabilities, and protection thresholds/delays.
Provides accuracy figures for pick-up, PU/DO ratio, and time delays.
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