is the physical value for current divided by the cross-sectional surface area. The\nunit of measure is A\/mm2. With mains frequency, air-cooled current rails have a\nmaximum of 2 A\/mm2, and with medium frequency up to 500 Hz approx. 1\nA\/mm2. If the electrical conductor is surrounded by flowing water, as in water-\ncooled cables, a maximum of 16 A\/mm2 will be available in this application.\nBecause of the line losses, the length must also be taken into account in addition\nto the cross-section. double the length with the same cross-section also means\ndouble the losses. A 5 m long cable with 600 mm2 copper cross-section has loss-\nes of 13.7 kW at 9,600 A of transmitted current, so the losses in a 10 m cable will\nbe 27.4 kW. If the furnace has 2 cables, the losses will therefore be 27.4 kW at a\nlength of 5 m and 54.8 kW with a 10 m cable length. This application example\napplies to a furnace with an output of 2,150 kW at 1,000 V. The reduction of the\ncurrent density, in this case from 16 A\/mm2 to 10.67 A\/mm2 thus produces loss-\nes of 18.2 kW and 36.4 kW.\n<\/p>\n","protected":false},"excerpt":{"rendered":"
is the physical value for current divided by the cross-sectional surface area. The unit of measure is A\/mm2. With mains frequency, air-cooled current rails have a maximum of 2 A\/mm2, and with medium frequency up to 500 Hz approx. 1 A\/mm2. If the electrical conductor is surrounded by flowing water, as in water- cooled cables, … Continue reading Current density<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1267","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":{"adresse":"","telefon":"","e-mail":"","webseite":""},"_links":{"self":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/comments?post=1267"}],"version-history":[{"count":1,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1267\/revisions"}],"predecessor-version":[{"id":1268,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1267\/revisions\/1268"}],"wp:attachment":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/media?parent=1267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/categories?post=1267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/tags?post=1267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}