Solar Manufacturing Inc., Sellersville, Pennsylvania, has received US Patent No. 11053560, issue date July 6, 2021.
The patent covers the use of a full isolation power transformer for use with a 600 hp 460-volt motor, and with an ionizing gas, such as argon, to prevent electric motor ground fault and failure, with additional solid-state circuit protection, in conjunction with a vacuum furnace gas quench system. Full details will be on the US Patent Office website.
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