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  5. Suggestion on improvement of check of high-fidelity ammeters and voltmeters with basic relative error 0,2% and more

Suggestion on improvement of check of high-fidelity ammeters and voltmeters with basic relative error 0,2% and more

A.V. Kotov, M.V. Borisenko, S.V. Gerasimov
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In the article the existent failings are considered during the leadthrough of check of high-fidelity ammeters and voltmeters, especially in the places of their permanent exploitation. Done suggestion in relation to the improvement of chart of check of high-fidelity ammeters and voltmeters by the class of exactness 0,2 % and anymore, which are entrusted for GOST 8.497-83. The developed method of determination of metrology descriptions of high-fidelity ammeters and voltmeters is resulted by the class of exactness 0,2 % and anymore and charts which he will be realized. Advantages of the offered method are certain in relation to existing, order of calculation of error of measuring result. Substantive provisions are grounded relatively the use offered method and charts to him.
Keywords: ammeter, voltmeter, class of exactness, scale transformer, setting, chart