PL415108A1 - Method for measuring parameters of power consumed by two-terminal network powered by sinusoidal alternating current with the frequency of 50 Hz and effective value of such two-terminal network voltage and current - Google Patents
Method for measuring parameters of power consumed by two-terminal network powered by sinusoidal alternating current with the frequency of 50 Hz and effective value of such two-terminal network voltage and currentInfo
- Publication number
- PL415108A1 PL415108A1 PL415108A PL41510815A PL415108A1 PL 415108 A1 PL415108 A1 PL 415108A1 PL 415108 A PL415108 A PL 415108A PL 41510815 A PL41510815 A PL 41510815A PL 415108 A1 PL415108 A1 PL 415108A1
- Authority
- PL
- Poland
- Prior art keywords
- current
- voltage
- terminal network
- effective value
- formula
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000005259 measurement Methods 0.000 abstract 2
- 238000005070 sampling Methods 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000002307 isotope ratio mass spectrometry Methods 0.000 abstract 1
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
Przedmiotem wynalazku jest sposób pomiaru parametrów mocy pobieranej przez dwójnik zasilany napięciem sinusoidalnie zmiennym o częstotliwości 50 Hz oraz wartości skutecznej napięcia i prądu tego dwójnika, znajdujący zastosowanie przy badaniu właściwości elektrycznych dwójników i ich zachowania się w obwodach jednofazowych prądu sinusoidalnie zmiennego o częstotliwości 50 Hz. Sposób polega na dwukrotnym pomiarze wartości chwilowej napięcia i prądu zasilającego dwójnik, uzyskując pary wartości u1 = u(t1) oraz i1 = i(t1 + ?t) dla pierwszej serii pomiarów i u2 = u(t2) oraz i2 = i(t2 + ?t) dla drugiej serii pomiaru, gdzie ?t stanowi czas opóźnienia pobierania przy częstotliwości próbkowania spełniającej warunek: fs = 4f/(2n + 1), a następnie na przetworzeniu i przeliczeniu wartości chwilowych napięcia i prądu oraz obliczeniu mocy czynnej P ze wzoru: P = p cos(?ß) - q sin(?ß), moc bierną Q ze wzoru: Q = p sin(?ß) + q cos(?ß), gdzie p = 1/2 [i1(t1)u1(t1) + i2(t2)u2(t2)], a q = -1/2[(i1(t1)u2(t2) - i2(t2)u1(t1))], natomiast ?ß = ? ?t; wartość skuteczną prądu IRMS wyliczana się ze wzoru (A), a wartość skuteczną napięcia URMS wylicza się ze wzoru (B).The subject of the invention is a method of measuring the parameters of power absorbed by a two-phase alternating voltage supply with 50 Hz frequency and the effective value of voltage and current of this two-terminal connection, which is used in testing the electrical properties of two-terminal connectors and their behavior in single-phase circuits with 50 Hz sinusoidal alternating current. The method consists in measuring the instantaneous value of the voltage and current supplying the binary connector twice, obtaining pairs of values u1 = u (t1) and i1 = i (t1 +? T) for the first series of measurements and u2 = u (t2) and i2 = i (t2 + ? t) for the second series of measurement, where? t is the time delay of sampling at the sampling frequency satisfying the condition: fs = 4f / (2n + 1), and then on the processing and conversion of instantaneous voltage and current values and the calculation of active power P from the formula: P = p cos (? Ss) - q sin (? Ss), reactive power Q from the formula: Q = p sin (? Ss) + q cos (? Ss), where p = 1/2 [i1 (t1) u1 (t1) + i2 (t2) u2 (t2)], aq = -1/2 [(i1 (t1) u2 (t2) - i2 (t2) u1 (t1))], while? ß =? T; the effective value of the IRMS current is calculated from formula (A), and the effective value of URMS voltage is calculated from formula (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL415108A PL415108A1 (en) | 2015-12-03 | 2015-12-03 | Method for measuring parameters of power consumed by two-terminal network powered by sinusoidal alternating current with the frequency of 50 Hz and effective value of such two-terminal network voltage and current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL415108A PL415108A1 (en) | 2015-12-03 | 2015-12-03 | Method for measuring parameters of power consumed by two-terminal network powered by sinusoidal alternating current with the frequency of 50 Hz and effective value of such two-terminal network voltage and current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL415108A1 true PL415108A1 (en) | 2017-06-05 |
Family
ID=58793825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL415108A PL415108A1 (en) | 2015-12-03 | 2015-12-03 | Method for measuring parameters of power consumed by two-terminal network powered by sinusoidal alternating current with the frequency of 50 Hz and effective value of such two-terminal network voltage and current |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL415108A1 (en) |
-
2015
- 2015-12-03 PL PL415108A patent/PL415108A1/en unknown
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