PL100445B1 - METHOD OF MEASURING THE INTERNAL RESISTANCE OF THE VOLTAGE SOURCE - Google Patents

METHOD OF MEASURING THE INTERNAL RESISTANCE OF THE VOLTAGE SOURCE Download PDF

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Publication number
PL100445B1
PL100445B1 PL19379976A PL19379976A PL100445B1 PL 100445 B1 PL100445 B1 PL 100445B1 PL 19379976 A PL19379976 A PL 19379976A PL 19379976 A PL19379976 A PL 19379976A PL 100445 B1 PL100445 B1 PL 100445B1
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Poland
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source
internal resistance
measuring
voltage
voltage source
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PL19379976A
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Polish (pl)
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Priority to PL19379976A priority Critical patent/PL100445B1/en
Publication of PL100445B1 publication Critical patent/PL100445B1/en

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Description

Opis patentowy opublikowano: 31.07.1981 100445 lnt,CI2.The patent description was published: 07/31/1981 100445 lnt, Cl2.

G01R 27/00 Int.Cl3. GOIR27/00 CZYTELNIA U1 ±du PoWWgo Twórcawynalazku: Konstanty Bielanski Uprawniony z patentu : Politechnika Czestochowska, Czestochowa (Polska) Sposób pomiaru rezystancji wewnetrznej zródla napiecia Wynalazek dotyczy sposobu pomiaru rezystancji wewnetrznej zródla niskiego i "wysokiego napiecia, przy zmiennych obciazeniach zródla.G01R 27/00 Int.Cl3. GOIR27 / 00 READING ROOM U1 ± du PoWWgo Inventor: Konstanty Bielanski Authorized by the patent: Czestochowa University of Technology, Czestochowa (Poland) The method of measuring the internal resistance of a voltage source The invention relates to a method of measuring the internal resistance of a low and "high voltage source at variable source loads.

Znany sposób polega na dwukrotnym pomiarze okreslonych wielkosci elektrycznych, przykladowo napiec przy róznych obciazeniach zródla najkorzystniej wylaczonego z sieci, a nastepnie na obliczeniu rezystancji wewnetrznej zródla. Dokladnosc pomiaru rezystancji wewnetrznej zródla zalezy od tego, czy w trakcie obu pomiarów nie zostaly losowo wlaczone w uklad sieci dodatkowe odbiorniki.The known method consists in measuring certain electrical quantities twice, for example voltages at different loads on the source, most preferably disconnected from the network, and then on the calculation of the resistance internal source. The accuracy of the internal resistance measurement of the source depends on whether or not both measurements, additional receivers were not randomly included in the network system.

Znany sposób nie moze byc stosowany do pomiaru rezystancji wewnetrznej zródla wysokiego napiecia, gdyz sposób ten wymaga wylaczenia zródla i zastosowania dodatkowego ukladu umozliwiajacego okreslone obciazenie zródla w trakcie pomiarów.The known method cannot be used to measure the internal resistance of a high voltage source, because this method requires switching off the source and the use of an additional circuit enabling the specific source load during measurements.

Istota wynalazku polega na tym, ze mierzy sie wartosc srednia kwadratu napiecia oraz równoczesnie wartosc srednia mocy i mierzy sie czas wspólny obu pomiarów a nastepnie powtarza sie te pomiary przy innym obciazeniu zródla, przy czym odczyty mierzonych wartosci dokonuje sie w identycznym jak poprzednio prze¬ dziale czasu, po czym oblicza sie rezystancje wewnetrzna zródla, która wynosi polowe ilorazu róznicy zmierzo¬ nych uprzednio wartosci srednich kwadratów napiec przez róznice wartosci srednich mocy. Do pomiaru moze byc wykorzystany zainstalowany dla celów rozliczenia energii elektrycznej licznik tej energii z dodatkowo dola¬ czonym licznikiem woltokwadratgodzin.The essence of the invention is that the mean value of the square of the voltage is measured and simultaneously the average value of the power and the time common to both measurements is measured, and then these measurements are repeated with another load of the source, where the readings of the measured values are made in the same as before time division, and then the internal resistance of the source is calculated, which is half the quotient of the difference, measured the previously different values of the mean squares of the voltage through the differences in the values of the mean power. To measure maybe be used the meter installed for electricity billing purposes with additional bottom the volt square hour meter.

Pomiar rezystancji wewnetrznej zródla, sposobem wedlug wynalazku jest latwiejszy i bardziej prosty od znanych sposobów, dzieki wykorzystaniu naturalnych wahan obciazenia. Proponowany sposób umozliwia ponad¬ to pomiar rezystancji wewnetrznej zródla wysokiego napiecia bez wylaczenia jego z sieci elektrycznej.The measurement of the internal resistance of the source, according to the invention, is easier and simpler than known methods by taking advantage of natural load fluctuations. The proposed method enables more than is a measurement of the internal resistance of a high voltage source without disconnecting it from the mains.

Pomiaru rezystancji wewnetrznej zródla napiecia dokonuje sie w okreslonym miejscu ukladu sieci, przykladowo w ten sposób, ze przy istniejacym obciazeniu zródla okresla sie dodatkowo dolaczonym licznikiem i stoperem sredni kwadrat napiecia, a ponadto, w tym samym czasie licznikiem energii elektrycznej i stoperem pobierana ze zródla srednia moc. Nastepnie powtarza sie te pomiary w identycznym jak poprzednio przedziale czasu, przy innym niz poprzednio obciazeniu zródla. Po dokonaniu pomiarów oblicza sie rezystancje wewne¬ trzna zródla, która jest proporcjonalna do róznicy dwóch pomiarów srednich kwadratów napiec i odwrotnie proporcjonalna do róznicy dwóch pomiarów srednich mocy.2 100445The internal resistance of the voltage source is measured at a specific location in the network system, for example, in such a way that with the existing source load it is determined by the additionally connected meter and a stopwatch with the mean square of the voltage, and at the same time with an electricity meter and a stopwatch average power consumed from the source. Then these measurements are repeated in the same interval as before time, with a different load from the source than before. After taking the measurements, the internal resistances are calculated the source that is proportional to the difference between the two mean square measurements of the voltage and vice versa proportional to the difference of the two mean power measurements 2 100 445

Claims (1)

1. Z a s t r z e z e n i e p a t e n t o w e Sposób pomiaru rezystancji wewnetrznej zródla napiecia polegajacy na dwukrotnym pomiarze wielkosci elektrycznych przy róznych obciazeniach zródla, z n a m ienny tym, ze mierzy sie wartosc srednia kwadra¬ tu napiecia oraz wartosc srednia mocy i mierzy czas ich pomiaru a nastepnie powtarza sie te pomiary przy innym obciazeniu zródla, po czym okresla sie rezystancje wewnetrzna zródla, która wynosi polowe ilorazu róznicy wartosci srednich kwadratów napiec przez róznice wartosci srednich mocy. Prac. Poligraf. UP PRL naklad 120+18 r ^Cona 45 zl1. Patent design A method of measuring the internal resistance of a voltage source consisting in measuring electrical quantities twice at different loads on the source, characterized by the fact that the mean value of the voltage square and the mean value of the power are measured and the time of their measurement is measured, and then these measurements are repeated. other load of the source, and then the internal resistance of the source is determined, which is half of the quotient of the difference in voltage mean squares by the difference in mean power values. Wash. Typographer. UP PRL circulation 120 + 18 Cona 45 zlotys
PL19379976A 1976-11-18 1976-11-18 METHOD OF MEASURING THE INTERNAL RESISTANCE OF THE VOLTAGE SOURCE PL100445B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19379976A PL100445B1 (en) 1976-11-18 1976-11-18 METHOD OF MEASURING THE INTERNAL RESISTANCE OF THE VOLTAGE SOURCE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL19379976A PL100445B1 (en) 1976-11-18 1976-11-18 METHOD OF MEASURING THE INTERNAL RESISTANCE OF THE VOLTAGE SOURCE

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PL100445B1 true PL100445B1 (en) 1978-10-31

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