A METHOD FOR CALIBRATING 10-TURN AND 50-TURN CURRENT COIL USING MULTIPRODUCT CALIBRATOR

Hayati Amalia, Agah Faisal

Abstract

This paper presents a traceable measurement method developed in the Laboratory of National Measurement Standards for Electricity and Time (NMS Lab for Electricity and Time) - National Standardization Agency of Indonesia for calibrating current coil in order to obtain correction and uncertainty estimation of the current coil windings number (N). Current coils as objects of this research were 10-turn and 50-turn current coil. Calibration was performed using standard multiproduct calibrator (MPC) and two auxiliary devices, current coil F-5500 and clamp meter F-337. Correction and uncertainty values of N current coil were evaluated for DC and AC supplied current using formulation developed based on principle of current division between current coil output and supplied current from MPC. Based on evaluation result analysis, the expanded uncertainties of this method span from 0.47% to 1.0% (when supplied by DC current) and from 0.57% to 1.1% (when supplied by AC current) for 10-turn current coil, and span from 0.44% to 0.65% (when supplied by DC current) and from 0.54% to 0.96% (when supplied by AC current) for 50-turn current coil. Moreover, it also showed that the largest uncertainty component came from current coil F-5500. Meanwhile, the largest correction for 10-turn current coil was obtained 1.2% at 10 A DC, and for 50-turn current coil was obtained -0.47% at 700 A AC. Verification of the calibration and evaluation methods had also been carried out and it indicated that the calibration and analysis methods developed can be used to examine the performance of the current coil.

Keywords

calibration, current coil, multiproduct calibrator, uncertainty

Full Text:

PDF

References

Amalia, H., & Faisal, A. (2017). Kalibrasi daya ac pada power quality analyzer dengan menggunakan multiproduct calibrator. widyariset, 3(1), 67–80. https://doi.org/http://dx.doi.org/10.14203/widyariset.3.1.2017.67-80

Bell, S. (2001). A Beginner ’s Guide to Uncertainty of Measurement (11th ed.). United Kingdom: National Physical Laboratory.

Costa, M. (2018). Electrical current coil metrological confirmation for current clamp meters calibration Electrical current coil metrological confirmation for current clamp meters calibration.XXII World Congress of the International Measurement Confederation (IMEKO 2018) (p. 4). https://doi.org/10.1088/1742-6596/1065/5/052014

Draxler, K., & Styblíková, R. (2016). Calibration of AC Clamp Meters. IEEE Transactions on Instrumentation and Measurement, 65(5), 1156–1162. https://doi.org/10.1109/TIM.2015.2507413

Farrance, I., & Frenkel, R. (2012). Uncertainty of Measurement : A Review of the Rules for Calculating Uncertainty Components through Functional Relationships. Clin Biochem, 33(May), 49–75.

Fluke Corporation. (2002). Instruction Sheet, Model 5500A / COIL, 50-Turn Current Coil. United State of America.

Fluke Corporation. (2003). Operators Manual 5520A Multi-Product Calibrator. United State of America.

Galliana, F., Capra, P. P., & Gasparotto, E. (2012). Inter-laboratories comparison at 100 G X and 1 T X level to evaluate the traceability transfer from INRIM in the field of high dc resistance SET OF PRIMARY. Measurement, 45(3), 615–621. https://doi.org/10.1016/j.measurement.2011.10.028

Habte, A., Sengupta, M., Reda, I., & Andreas, A. (2014). Calibration and measurement uncertainty estimation of radiometric data preprint. in solar 2014. National Renewable Energy Laboratory (NREL).

Hogan, R. (2015). 7 steps to calculate measurement uncertainty. United State of America: ISOBudgets LLC.

Horálek, V. (2013). Analysis of basic probability distributions , their properties and use in determining type B evaluation of measurement uncertainties. Measurement, 46, 16–23. https://doi.org/10.1016/j.measurement.2012.09.006

Jaiswal, S. K., Ojha, V. N., & Singh, A. (2005). Estimation of uncertainty in measurement in precision calibration of DC high current source up to 100 A. Journal of Scientific and Industrial Research, 64(9), 666–673.

JCGM. (2008). JCGM 100 : 2008, Evaluation of measurement data: Guide to the expression of uncertainty in measurement (1st ed.). JCGM. https://doi.org/10.1373/clinchem.2003.030528

Jornada, D. H. da, Caten, C. ten, & Pizzolato, M. (2016). Guidance Documents on Measurement Uncertainty : An Overview and Critical Analysis. NCSLI Measure, The Journal of Measurement Science, 5:1(May), 68–76. https://doi.org/10.1080/19315775.2010.11721507

KRISS. (2014). Certificate of calibration. Daejeon, Republic of Korea.

Ljubljanac, A. (2018). Basic principles and operation of a transformer networks. https://doi.org/10.1016/0003-9861(69)90264-1

NMIA. (2017). Measurement Report on Reference Multimeter. West Lindfield, Australia.

Olencki, A., & Mróz, P. (2017). Traceable technique to calibrate current coils for calibration of the power clamp meters in AC current range up to 1000 A. Measurement, 109, 366–372. https://doi.org/10.1016/j.measurement.2017.05.024

P2M-LIPI. (2017). Sertifikat kalibrasi multifunction calibrator fluke 5520A. Tangerang Selatan, Indonesia.

Transmille. (2008). Certificate of calibration. United Kingdom.

Ziegler, S., Woodward, R. C., Iu, H. H., & Borle, L. J. (2009). Current sensing techniques : A review. IEEE SENSORS JOURNAL, 9(4), 354–376.

DOI: http://dx.doi.org/10.31153/js.v21i3.749