<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In the recent years, the reducing of audible noise of laminated machine cores has become great importance, due to high relevance given to environmental awareness. The strain caused by magnetostriction and magnetostatic forces is recognized as one of the main sources of noise. Especially for transformers, strain in the core interior tends to be different from that on the surface, due to differences of clamping, variation of in-plane fluxes and pronounced off-plane (normal) fluxes. For the first time, local measurements of strain in the core interior are presented by means of a novel printed detector band. First results tend to be very promising, exhibiting very high sensitivity and resolution. So far, the relevance of measurements is restricted to comparisons of different core regions.</p></abstract>

In the recent years, the reducing of audible noise of laminated machine cores has become great importance, due to high relevance given to environmental awareness. The strain caused by magnetostriction and magnetostatic forces is recognized as one of the main sources of noise. Especially for transformers, strain in the core interior tends to be different from that on the surface, due to differences of clamping, variation of in-plane fluxes and pronounced off-plane (normal) fluxes. For the first time, local measurements of strain in the core interior are presented by means of a novel printed detector band. First results tend to be very promising, exhibiting very high sensitivity and resolution. So far, the relevance of measurements is restricted to comparisons of different core regions.

Printed detector bands for measurements of strain in core interior of transformers

Institute of Electrodynamics, Microwave and Circuit Engineering (EMCE)

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

In the recent years, the reducing of audible noise of laminated machine cores has become great importance, due to high relevance given to environmental...

Printed detector bands for measurements of strain in core interior of transformers

Published Online: Dec 31, 2018

Page range: 481 - 484

Received: Feb 13, 2018

DOI: https://doi.org/10.2478/jee-2018-0081

Keywords
magnetostriction, transformer cores, magnetic sensors

© 2018 Georgi Shilyashki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Printed detector bands for measurements of strain in core interior of transformers

Published Online: Dec 31, 2018

Page range: 481 - 484

Received: Feb 13, 2018

DOI: https://doi.org/10.2478/jee-2018-0081

Keywordsmagnetostriction, transformer cores, magnetic sensors

© 2018 Georgi Shilyashki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
magnetostriction, transformer cores, magnetic sensors