Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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EVALUATION OF ERRORS BY MONTE CARLO METHOD IN MEASURING THE COMPONENTS OF IMPEDANCE

Baranov V.A. 1 Danilova A.A. 2 Shumarova S.A. 1
1 Penza state university
2 Penza Center for Standardization
The Monte Carlo method is an effective tool for evaluating the characteristics of the random errors of indirect ,, cumulative and simultaneous measurements in all the laws of probability distribution error in the results of direct measurements ,, in particular, the standard deviation of the results of the impedance measurements that determine the quality of high-voltage insulators : electrical capacity or its inverse ,, active electrical resistance or conductance ,, dielectric loss tangent ,, or tangent of the phase shift. The probability distribution of error in the results of measurements of these parameters from the values of the components of the complex impedance obtained by direct measurement with a relative error of less than ± 1% with a uniform probability distribution of the error of measurement results is triangular ( angle tangent of the loss ,, the tangent of the phase shift ) ,, the uniform (active electrical resistance or conductance) or normal (electric capacity and its inverse ). When the relative error of the measurements of the impedance components of greater than ± 1% ,, the probability distribution of error in the results of the impedance measurements are markedly asymmetric. In such cases, when you make the measurements necessary to further decrees Vat - stress ratio or the type of the distribution of probability of error.