Abstract
IN a paper read before the Institution of Electrical Engineers in London, D. J. Bolton pointed out that technical developments may at any time make it possible to increase the working densities in electrical machines and so enable a larger output to be obtained from a given frame-size and weight of active materials.
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Economic Flux Density in Large Transformers. Nature 153, 19 (1944). https://doi.org/10.1038/153019b0
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DOI: https://doi.org/10.1038/153019b0