Modern commercial dc current transformers (DCCTs) can measure currents up to the kiloampere range with accuracies better than $1 times 10^{-5}$ . We discuss here a DCCT calibration method and its implementation with commercial instruments typically employed in low-resistance calibration laboratories. The primary current ranges up to 2 kA; in the current range <100 A, the calibration uncertainty is better than $3 times 10^{-7}$ . An example of calibration of a high-performance DCCT specified for primary currents measurement up to 900 A is discussed in detail.

On the Calibration of Direct-Current Current Transformers (DCCT) / Callegaro, Luca; Cassiago, Cristina; Gasparotto, E.. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - 64:3(2015), pp. 723-727. [10.1109/TIM.2014.2359812]

On the Calibration of Direct-Current Current Transformers (DCCT)

CALLEGARO, LUCA;CASSIAGO, CRISTINA;Gasparotto E.
2015

Abstract

Modern commercial dc current transformers (DCCTs) can measure currents up to the kiloampere range with accuracies better than $1 times 10^{-5}$ . We discuss here a DCCT calibration method and its implementation with commercial instruments typically employed in low-resistance calibration laboratories. The primary current ranges up to 2 kA; in the current range <100 A, the calibration uncertainty is better than $3 times 10^{-7}$ . An example of calibration of a high-performance DCCT specified for primary currents measurement up to 900 A is discussed in detail.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/32734
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