Research on the Calibration Instrument for the Medium-Voltage Electronic Instrument Transformers

Abstract:

Electronic instrument transformers are used in power line for electrical measurement and protection purposes. Calibration instruments are necessary for the transformation error test of electronic instrument transformers. The operation principles of the direct and difference measurement method based calibration instrument for the medium-voltage electronic instrument transformers are systematically analyzed in this paper. The analysis results show that the direct measurement method based instrument can be used for the calibration of electronic instrument transformers with air-core coils or resistor-capacitor voltage divider without a built-in integrator, and the difference measurement method based instrument is suitable for the calibration of the electronic instrument transformers with no rated phase offset.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 7471-7478
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.7471
• Online since: January 2012
• Authors: Yue Xie, Jing Chen
• Keywords: Calibration, Electronic Instrument Transformers, Instrument

References

[1] Instrument Transformers-Part8: Electronic Current Transformers, IEC60044-8, (2002).

[2] Instrument Transformers-Part7: Electronic Voltage Transformers, IEC60044-7, (1999).

[3] Communication Networks and Systems in Substations, Part9-1: Specific Communication Service Mapping (SCSM)-Sampled Analogue Values Over Serial Unidirectional Multidrop Point to Point Link, IEC61850-9-1, (2003).

DOI: 10.3403/02845915

[4] A. Brandolini, M. Faifer and R. Ottoboni, A novel and simple method for VT and CT calibration, in Proc. IEEE Int Instrum. and Meas. Technol. Conf., pp.1879-1881, May 12-15, (2008).

DOI: 10.1109/imtc.2008.4547352

[5] E. So, R. Arseneau, D. Bennett, T. L. Nelson and B. C. Waltrip, NRC-NIST intercomparision of calibration systems for current transducers with a voltage output at power frequencies, IEEE Trans. on Instrum. and Meas., vol. 52, no. 2, pp.424-428, April. (2003).

DOI: 10.1109/tim.2003.809909

[6] R. Sasdelli, A. Menchetti and L. Peretto, A Digital Instrument for the calibration of current-to-voltage transducers, IEEE Trans. on Instrum. and Meas., vol. 47, no. 1, pp.189-194, Feb. (1998).

DOI: 10.1109/19.728816

[7] B. Djokic, Calibration of Rogowski Coils at Frequencies up to 10 kHz Using Digital Sampling, in Proc. IEEE Int Instrum. and Meas. Technol. Conf., pp.437-441, May 5-7, (2009).

DOI: 10.1109/imtc.2009.5168488