One of the main sub-systems of the experimental device. a cryogenic system uses the sub-cooled liquid nitrogen (LN 2) pressurized to cool the HTS cable and its terminations. This cryogenic system has the sub-cooled LN 2 cycle part and the refrigeration part. The former applies a cryogenic pump to force LN 2 through a heat exchanger in the sub-cooler. https://globechemicalcompanyls.shop/product-category/shoe-covers/