A measurement technique for quality control of windings for cast resin power transformers

2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings Pub Date : 2014-05-12 DOI:10.1109/I2MTC.2014.6860830

E. Fiorucci, G. Bucci, Flavio D'Innocenzo, M. Luiso

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引用次数: 3

Abstract

The cast resin transformers are today used in a vast range of applications, as reliable answer for application concerning distribution systems, energy co-generation, rectification, traction and other special requirements. To increase the quality of the resin casting process, a research cooperation between the Department of Electrical and Information Engineering and Economics of the University of L'Aquila and the Bticino Legrand group has been started, with the main aim of developing a non- invasive and reliable measurement procedure, for a fast characterization and the identification of possible nonconformity for cast resin windings. The proposed procedure is based on the SFRA (Sweep Frequency Response Analysis), with some improvements for the correct evaluation of the correlation coefficients among different SFRA profiles. In this paper, the experimental results that have been obtained by applying the SFRA to windings of different sizes are presented, and some faults have been investigated.

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铸造树脂电力变压器绕组质量控制的测量技术

铸造树脂变压器如今广泛应用于配电系统，能源热电联产，整流，牵引和其他特殊要求的可靠解决方案。为了提高树脂铸造工艺的质量，拉奎拉大学电气与信息工程与经济学系与Bticino Legrand集团已经开始了一项研究合作，其主要目的是开发一种非侵入性和可靠的测量程序，用于快速表征和识别铸造树脂绕组可能的不合格。该方法基于SFRA(扫描频响分析)，并对不同SFRA曲线之间的相关系数进行了一些改进。本文给出了将SFRA应用于不同尺寸绕组的实验结果，并对一些故障进行了分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings

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