{"id":33952,"date":"2026-08-02T04:18:43","date_gmt":"2026-08-01T20:18:43","guid":{"rendered":"https:\/\/electricalcabinet.net\/?p=33952"},"modified":"2026-08-02T04:18:43","modified_gmt":"2026-08-01T20:18:43","slug":"air-insulated-switchgear-components","status":"publish","type":"post","link":"https:\/\/electricalcabinet.net\/fa\/air-insulated-switchgear-components\/","title":{"rendered":"Air-Insulated Switchgear Components: Bus, Switching, Protection, and Interfaces"},"content":{"rendered":"<h2><span class=\"ez-toc-section\" id=\"Define_the_assembly_functions\"><\/span>Define the assembly functions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Air-insulated switchgear uses air as the primary insulation medium around defined switching, bus, protection, measurement, earthing, and cable interfaces. The component arrangement depends on voltage, fault duty, feeder role, and the project operating philosophy.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/div>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/electricalcabinet.net\/fa\/air-insulated-switchgear-components\/#Define_the_assembly_functions\" >Define the assembly functions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/electricalcabinet.net\/fa\/air-insulated-switchgear-components\/#Component_groups\" >Component groups<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/electricalcabinet.net\/fa\/air-insulated-switchgear-components\/#Scope_boundary\" >Scope boundary<\/a><\/li><\/ul><\/nav><\/div>\n\n<h2><span class=\"ez-toc-section\" id=\"Component_groups\"><\/span>Component groups<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Group<\/th>\n<th>Planning role<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Busbars and compartments<\/td>\n<td>Distribute power and define access boundaries<\/td>\n<\/tr>\n<tr>\n<td>Breakers or switches<\/td>\n<td>Switch or interrupt the defined circuit duty<\/td>\n<\/tr>\n<tr>\n<td>CTs, VTs, and relays<\/td>\n<td>Measure conditions and support protection<\/td>\n<\/tr>\n<tr>\n<td>Earthing and interlocks<\/td>\n<td>Control safe operating states<\/td>\n<\/tr>\n<tr>\n<td>Terminations and surge protection<\/td>\n<td>Connect the external network and manage interfaces<\/td>\n<\/tr>\n<tr>\n<td>Control power and indications<\/td>\n<td>Support local, remote, and maintenance functions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Scope_boundary\"><\/span>Scope boundary<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Request the single-line diagram, voltage, current, fault duty, cable data, protection functions, environment, and drawings. This guide does not select a device or certify an AIS assembly.<\/p>","protected":false},"excerpt":{"rendered":"<p>Define air-insulated switchgear bus, switching, protection, measurement, earthing, terminations, control, and environment inputs.<\/p>","protected":false},"author":1,"featured_media":33228,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[437],"tags":[],"class_list":["post-33952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-switchgears"],"jetpack_featured_media_url":"https:\/\/electricalcabinet.net\/wp-content\/uploads\/2024\/07\/Metal-Enclosed-vs.-Metal-Clad-Switchgear.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/posts\/33952","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/comments?post=33952"}],"version-history":[{"count":1,"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/posts\/33952\/revisions"}],"predecessor-version":[{"id":33957,"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/posts\/33952\/revisions\/33957"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/media\/33228"}],"wp:attachment":[{"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/media?parent=33952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/categories?post=33952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/electricalcabinet.net\/fa\/wp-json\/wp\/v2\/tags?post=33952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}