Electric motors bring new issues in acoustic insulation. They create high frequencies noise wich are more unpleasant and we need to absorb or reduce them. I'm asking to myself if association of fiber materials and foams could be efficient and why exactly. are there new technologies for electric motors insulation ? Thank you in advance.
B Koti Reddy Bhupendra Desai thank you for your answers. I've read that Polyurethane foam was good materials for insulation too. I'll check the Mica for my future projects.
Dear Dr Yannis Sinnamalé . NEMA motor insulation classes describes the ability of motor insulation in the windings to handle heat. There are four insulation classes in use namely: A, B, F, and H. All four classes identify the allowable temperature rise from an ambient temperature of 40° C (104° F). See the link: https://www.electricalengineeringtoolbox.com/2016/02/insulation-classes-for-electric-motors.html?m=1
Kindly see also the following useful RG link: Chapter Insulation of Electrical Machines
Also check please the following good link: https://custommaterials.com/electrical-insulator-materials/
The following link is also very useful: https://www.ieh.kit.edu/1416.php
Thank you Dr Aref Wazwaz for your answers, but I meant acoustic insulation. Sorry, that's my fault, I didn't explain correctly my demand.
Dear Dr Yannis Sinnamalé . For acoustic insulation, see the following useful RG link: Article Acoustic Absorption of Natural Fiber Composites
Kindly see also the following RG link: Article Research on the technology of noise reduction in hybrid elec...
Also check the following useful link: http://sandv.com/downloads/1007croc.pdf
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