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Accuracy class of electricity meter refers to the class of measuring instrument that meets certain measurement standard requirements and keeps measurement error within the specified limit. It’s also an important indicator of electricity meter’s performance.At present, there are four accuracy classes of commonly used electricity meters: 2.0, 1.0, 0.5S and 0.2S, which are usually expressed by A, B, ...
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The common electricity meters currently have four accuracy classes: 0.2S, 0.5S, 1.0, and 2.0. So, how to choose the right accuracy class of electricity meter according to the installation environment?Generally speaking, when the electricity meter is installed, the accuracy class is selected according to the transformer's capacity. For example, according to the State Grid's requirements, fo...
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