PL421876A1 - Method and the system for measurement of complex impedance of a shorting loop - Google Patents

Method and the system for measurement of complex impedance of a shorting loop

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Publication number
PL421876A1
PL421876A1 PL421876A PL42187617A PL421876A1 PL 421876 A1 PL421876 A1 PL 421876A1 PL 421876 A PL421876 A PL 421876A PL 42187617 A PL42187617 A PL 42187617A PL 421876 A1 PL421876 A1 PL 421876A1
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PL
Poland
Prior art keywords
impedance
measuring
measurement
value
complex
Prior art date
Application number
PL421876A
Other languages
Polish (pl)
Other versions
PL233169B1 (en
Inventor
Grzegorz Hołdyński
Zbigniew Skibko
Original Assignee
Politechnika Białostocka
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Politechnika Białostocka filed Critical Politechnika Białostocka
Priority to PL421876A priority Critical patent/PL233169B1/en
Publication of PL421876A1 publication Critical patent/PL421876A1/en
Publication of PL233169B1 publication Critical patent/PL233169B1/en

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Abstract

Przedmiotem zgłoszenia jest sposób i układ do pomiaru wartości zespolonej impedancji pętli zwarciowej w instalacjach elektrycznych o napięciu znamionowym nieprzekraczającym 1 kV. Sposób pomiaru wartości zespolonej impedancji pętli zwarciowej, oparty na pomiarze wartości skutecznej napięcia sieci badanej, w których w jednym okresie obciąża się obwód badany, a w drugim nie obciąża się obwodu badanego prądem pomiarowym, polega na tym, że do obwodu badanego przyłącza się impedor złożony z trzech różnych, znanych (z modułu i fazy) impedancji, a wartość zespoloną wyznaczanej impedancji zwarciowej układu badanego wyznacza się z wykorzystaniem wielomianu. Układ do pomiaru wartości zespolonej impedancji pętli zwarciowej, charakteryzuje się tym, że do zacisków wejściowych (1, 2) przyłączone są gałęzie obciążenia pomiarowego, składające się z impedancji obciążeniowej i wyłącznika sterowanego przez jednostkę centralną sterująco-pomiarowo-liczącą oraz wskaźnika wyniku pomiaru.The subject of the application is a method and system for measuring the complex value of short circuit loop impedance in electrical installations with a rated voltage not exceeding 1 kV. The method of measuring the complex value of short circuit loop impedance, based on the measurement of the RMS voltage value of the tested network, in which the test circuit is loaded in one period and the test circuit is not loaded in the other, the impedance consisting of three different, known (from module and phase) impedance, and the complex value of the determined short-circuit impedance of the tested system is determined using a polynomial. The system for measuring the value of complex short circuit loop impedance is characterized by the fact that the input terminals (1, 2) are connected to the measuring load branches, consisting of load impedance and a switch controlled by the central control-measuring-counting unit and the indicator of the measurement result.

PL421876A 2017-06-12 2017-06-12 Method and the system for measurement of complex impedance of a shorting loop PL233169B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL421876A PL233169B1 (en) 2017-06-12 2017-06-12 Method and the system for measurement of complex impedance of a shorting loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL421876A PL233169B1 (en) 2017-06-12 2017-06-12 Method and the system for measurement of complex impedance of a shorting loop

Publications (2)

Publication Number Publication Date
PL421876A1 true PL421876A1 (en) 2018-12-17
PL233169B1 PL233169B1 (en) 2019-09-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL421876A PL233169B1 (en) 2017-06-12 2017-06-12 Method and the system for measurement of complex impedance of a shorting loop

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PL (1) PL233169B1 (en)

Also Published As

Publication number Publication date
PL233169B1 (en) 2019-09-30

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