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In this paper authors present the result of a study oriented to assess the metrological characteristics of measuring systems used for verifying the variation of the ratio errors and phase displacements of inductive voltage transformers vs. temperature. Experimental results show that the designed equipment as well as the set up realized can be considered as a benchmark for the verification of the variations...
This paper deals with the problem of synchronizing phasor measurements in different nodes of a power network. Usually, this issue is faced by using a synchronization signal provided by wired or wireless communication infrastructure. As it is well known, the most common implementation of such a solution is the so-called Phasor Measurement Unit (PMU) which relies on a time reference signal coming from...
This paper presents the study of the propagation of the effects of uncertainties in a typical measurement system for modern power networks. Nowadays there is a strong demand from the electricity industry of simple and ready-to-use solutions for calculating uncertainty in such “new” measurement systems. To this purpose a simplified approach is presented whose results are shown to be in good agreement...
The paper presents a novel mathematical approach for assessing the phase angle displacement of voltages at nods of a power network with respect to a node taken as reference. It is accomplished without the use of a global time-reference signal, like those provided by GPS technology or through wired connections. This study origins from the growing interest of Distribution System Operators (DSOs) to...
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