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MAXIMUM INFLUENCE OF NONIDENTICAL R- AND C-ELEMENTS OF A HIGH-VOLTAGE DIVIDER ON ITS FREQUENCY CHARACTERISTICS

Authors: Brzhezytskyi, Volodymyr Oleksandrovych; Masliuchenko, Ihor Mykolaiovych; Laposha, Mykola Yuriiovych;

MAXIMUM INFLUENCE OF NONIDENTICAL R- AND C-ELEMENTS OF A HIGH-VOLTAGE DIVIDER ON ITS FREQUENCY CHARACTERISTICS

Abstract

This paper describes the impact of non-identical resistive and capacitive elements of high-voltage arm of mixed voltage divider on its frequency characteristics. The authors emphasized the general features and substantiated main shortcomings of existing methods of calculating the characteristics of high-voltage dividers. The analytical expressions received for influence study of non-identical elements of a high-voltage divider at extreme discrete distribution of these elements. Feature of the received analytical expressions is that they are valid for any values of not identity as for resistive, and capacitive elements, and also their cumulative action. It is shown that the selected discrete distribution of resistive and capacitive elements influence of their not identity on fluctuations of amplitude frequency response and the phase-frequency characteristic of a voltage divider increases more than five times in relation to "triangular" distribution of parameters of elements in case of equal values of their maximum deviations (from mean values). The maximum influence of not identity of resistive and capacitive elements of a high-voltage arm on its frequency characteristics was studied. The influence becomes significant at its extreme discrete distribution and can be considered as the worst case of influence of not identity of the components of a high-voltage arm of a voltage divider. The results received in the article are recommended for assessment "from above" of influence of not identity of resistive and capacitive elements of a high-voltage divider on his frequency characteristics that allows to define possible values of not identity of elements of a high-voltage arm depending on permissible instability of frequency characteristics of the voltage divider.

У статті розглянуто вплив неідентичності резистивних та ємнісних елементів високовольтного плеча змішаного подільника напруги на його частотні характеристики. Одержані аналітичні вирази для дослідження впливу неідентичності елементів високовольтного подільника напруги при граничному дискретному розподіленні цих елементів. Показано, що при даному дискретному розподіленні резистивних та ємнісних елементів вплив їх неідентичності на амплітуди коливань амплітудо-частотної характеристики та фазо-частотної характеристики подільника напруги збільшується більше ніж у п’ять разів по відношенню до «трикутного» розподілення параметрів елементів при рівних значеннях їх максимальних відхилень (від середніх значень). Отримані в статті результати рекомендується використовувати для оцінки «зверху» впливу неідентичності резистивних та ємнісних елементів високовольтного подільника напруги на його частотні характеристики.

Keywords

the phase-frequency characteristic, фазо-частотна характеристика, the non-identical elements, the amplitude-frequency characteristic, високовольтний подільник напруги, high-voltage divider, неідентичність елементів, амплітудно-частотна характеристика

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze