A complex current ratio device for the calibration of current transformer test sets.

• Autorzy: Çayci H.
• Języki publikacji: EN

Abstrakty

EN

A practical method with high accuracy in generation and application of error values for calibration of current transformer test sets is described. A PC-controlled three-phase power source with a standard wattmeter is used for generating the nominal and error test currents while an electronically compensated current comparator is used to provide summation and subtraction of them, precisely. With this method, any ratio error and phase displacement values could be generated automatically and nominal and test currents could be grounded on the test set safely. Because of its high accurate ratio and phase error generating capability, any type of test set regardless of its operating principles could be calibrated.

Słowa kluczowe

EN

current transformer test set; ratio error; phase displacement; current comparator; compensation

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2011
• Tom: Vol. 18, nr 1
• Strony: 159--164
• Opis fizyczny: Bibliogr. 4 poz., rys., tab.

Twórcy

autor

Çayci H.

• National Metrology Institute of Turkey (TUBITAK UME), Power & Energy Laboratory, P.O. Box:54, Gebze, 41470 Kocaeli, Turkey,

Bibliografia

• [1] Ramm, G., Roeissle, G., Latzel, H.G. (1998). Rechnergesteuerte Kalibrierung von Messeinrichtungen für Strom- und Spannungswandler. PTB-Mitteilungen,108, 188-200.
• [2] Moore, W.J.M., Miljanic, P.N. (1988). The current comparator. Inst. Elec. Eng. Electrical Measurement Series. London. UK. Peter Peregrinus, 4.
• [3] Miljanic, P.N, So, E., Moore, W.J.M. (1991). An electronically enhanced magnetic core for current transformers. IEEE Trans. Instrum. Meas., 40(2).
• [4] Çaycı, H. (2010). Electronically compensated current comparator. TUBITAK UME Technical Report.