用于变压器损耗校准的移相装置研制

doi:10.3969/j.issn.1000-1158.2022.12.21

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Abstract Research on phase shifting technology and instrument were carried on, which was applied in a high voltage and current source with tunable power factor for the calibration of transformer loss measurement system (TLMS). The instrument was based on Hilbert Transform. Input signal was convolved to generate a quadrature signal, and then the output signal with required phase was generated with vector synthesis method. Based on the aboved research, a phase shifting device was built with Compact RIO platform. Meanwhile, a phase difference measurement instrument was developed, which combined signal acquiring and processing technology of Compact RIO and LabVIEW platform. Resolution and stability of the phase shifting device were also verified by a commercial phase angle voltmeter Clark-Hess 2600. The experimental results show that resolution, stability, and accuracy of the system resolution are all better than 0.001°.

Key words： metrology transformer loss measurement Hilbert transform phase shifting technology Compact RIO power factor

Received: 07 January 2021 Published: 28 December 2022

PACS:

TB971

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	Articles by authors
	LI Wei-jie
	ZHAO Wei
	SHAO Hai-ming
	CAI Jin-Hui

Cite this article:

LI Wei-jie,ZHAO Wei,SHAO Hai-ming, et al. Development of Phase Shifting Instrument Applied for Transformer Loss Calibration[J]. Acta Metrologica Sinica, 2022, 43(12): 1651-1657.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.12.21 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I12/1651

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