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This document outlines accuracy classes for electricity metering applications according to IEC and IEEE standards. Very accurate metering has an accuracy of 0.1-0.2% according to IEC and 0.15% according to IEEE. Tariff metering has an accuracy of 0.2-0.5% according to IEC and 0.3% according to IEEE. Instrument meters and control have an accuracy of 1% according to IEC and 0.6% according to IEEE. Protection has an accuracy of 1-3P and 6P according to IEC and 1.2-1.2R according to IEEE.

Author

Madhav Baral

Language

EN