{"id":2143,"date":"2026-04-29T14:55:38","date_gmt":"2026-04-29T14:55:38","guid":{"rendered":"https:\/\/www.wonzh.com\/?post_type=product&#038;p=2143"},"modified":"2026-04-29T14:55:39","modified_gmt":"2026-04-29T14:55:39","slug":"kyn28a-12-medium-voltage-withdrawable-switchgear-3-6-12kv-armored-metal-enclosed-switchgear","status":"publish","type":"product","link":"https:\/\/www.wonzh.com\/ja\/product\/kyn28a-12-medium-voltage-withdrawable-switchgear-3-6-12kv-armored-metal-enclosed-switchgear\/","title":{"rendered":"KYN28A-12 \u4e2d\u96fb\u5727\u5f15\u51fa\u3057\u958b\u9589\u88c5\u7f6e\uff083.6-12kV\u88c5\u7532\u91d1\u5c5e\u9589\u9396\u578b\u958b\u9589\u88c5\u7f6e\uff09"},"content":{"rendered":"<p data-start=\"238\" data-end=\"480\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-medium wp-image-2144 alignright\" src=\"https:\/\/www.wonzh.com\/wp-content\/uploads\/2026\/04\/KYN28A-12-Medium-Voltage-Withdrawable-Switchgear-3.6-12kV-Armored-Metal-Enclosed-Switchgear-300x300.png\" alt=\"\" width=\"300\" height=\"300\" srcset=\"\" sizes=\"(max-width: 300px) 100vw, 300px\" data-srcset=\"\" \/>The KYN28A-12 series armored withdrawable AC metal-enclosed switchgear is a second-generation intelligent medium voltage switchgear, developed by integrating advanced international technology with modern CNC manufacturing processes.<\/p>\n<p data-start=\"482\" data-end=\"623\">It is designed for power distribution, control, protection, and monitoring in 3.6\u201312kV AC systems with a rated frequency of 50Hz.<\/p>\n<p data-start=\"625\" data-end=\"652\">\u3053\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u308b\uff1a<\/p>\n<ul data-start=\"653\" data-end=\"718\">\n<li data-section-id=\"1xei0r5\" data-start=\"653\" data-end=\"678\">Single busbar systems<\/li>\n<li data-section-id=\"192ocyv\" data-start=\"679\" data-end=\"718\">Single busbar sectionalized systems<\/li>\n<\/ul>\n<p data-start=\"720\" data-end=\"738\">Widely applied in:<\/p>\n<ul data-start=\"739\" data-end=\"821\">\n<li data-section-id=\"d83scr\" data-start=\"739\" data-end=\"767\">Large-scale power plants<\/li>\n<li data-section-id=\"1ofxk9x\" data-start=\"768\" data-end=\"783\">\u5909\u96fb\u6240<\/li>\n<li data-section-id=\"eakz7s\" data-start=\"784\" data-end=\"821\">\u5de5\u696d\u304a\u3088\u3073\u9271\u696d\u4f01\u696d<\/li>\n<\/ul>\n<hr data-start=\"823\" data-end=\"826\" \/>\n<h2 data-section-id=\"g4vs8k\" data-start=\"828\" data-end=\"854\">\ud83d\udd39 \u898f\u683c\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9<\/h2>\n<ul data-start=\"856\" data-end=\"1010\">\n<li data-section-id=\"nsjv6t\" data-start=\"856\" data-end=\"904\">IEC 60298 \u2013 AC Metal-Enclosed Switchgear<\/li>\n<li data-section-id=\"pcsbov\" data-start=\"905\" data-end=\"950\">GB\/T 3906 \u2013 Metal-Enclosed Switchgear<\/li>\n<li data-section-id=\"18a9m0v\" data-start=\"951\" data-end=\"1010\">DL\/T 404 \u2013 High Voltage Switchgear Technical Standard<\/li>\n<\/ul>\n<hr data-start=\"1012\" data-end=\"1015\" \/>\n<h2 data-section-id=\"17fvu7l\" data-start=\"1017\" data-end=\"1035\">\u4e3b\u306a\u7279\u5fb4<\/h2>\n<h3 data-section-id=\"5fhv34\" data-start=\"1037\" data-end=\"1075\">\u2714 Armored Metal-Enclosed Structure<\/h3>\n<ul data-start=\"1076\" data-end=\"1157\">\n<li data-section-id=\"1qklvor\" data-start=\"1076\" data-end=\"1110\">Fully compartmentalized design<\/li>\n<li data-section-id=\"1c0xflb\" data-start=\"1111\" data-end=\"1157\">High safety and fault isolation capability<\/li>\n<\/ul>\n<p data-start=\"1159\" data-end=\"1203\">\ud83d\udc49 Minimizes the impact of internal faults<\/p>\n<hr data-start=\"1205\" data-end=\"1208\" \/>\n<h3 data-section-id=\"32liwa\" data-start=\"1210\" data-end=\"1246\">\u2714 Withdrawable (Draw-out) Design<\/h3>\n<ul data-start=\"1247\" data-end=\"1318\">\n<li data-section-id=\"1b2oxwc\" data-start=\"1247\" data-end=\"1281\">Removable circuit breaker unit<\/li>\n<li data-section-id=\"qjo5m6\" data-start=\"1282\" data-end=\"1318\">Easy maintenance and replacement<\/li>\n<\/ul>\n<p data-start=\"1320\" data-end=\"1365\">\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u524a\u6e1b\u3068\u52b9\u7387\u306e\u5411\u4e0a<\/p>\n<hr data-start=\"1367\" data-end=\"1370\" \/>\n<h3 data-section-id=\"toa8t\" data-start=\"1372\" data-end=\"1424\">\u2714 Advanced \u201cFive Prevention\u201d Interlocking System<\/h3>\n<p data-start=\"1425\" data-end=\"1434\">Prevents:<\/p>\n<ul data-start=\"1435\" data-end=\"1550\">\n<li data-section-id=\"l66xwq\" data-start=\"1435\" data-end=\"1451\">Misoperation<\/li>\n<li data-section-id=\"1xvjcif\" data-start=\"1452\" data-end=\"1477\">Load switching errors<\/li>\n<li data-section-id=\"1bewz5n\" data-start=\"1478\" data-end=\"1496\">Live grounding<\/li>\n<li data-section-id=\"m5memd\" data-start=\"1497\" data-end=\"1517\">Energized access<\/li>\n<li data-section-id=\"11r67yz\" data-start=\"1518\" data-end=\"1550\">Incorrect sequence operation<\/li>\n<\/ul>\n<p data-start=\"1552\" data-end=\"1588\">\ud83d\udc49 Ensures maximum operator safety<\/p>\n<hr data-start=\"1590\" data-end=\"1593\" \/>\n<h3 data-section-id=\"1lp3cor\" data-start=\"1595\" data-end=\"1634\">\u2714 Internal Arc Withstand Capability<\/h3>\n<ul data-start=\"1635\" data-end=\"1729\">\n<li data-section-id=\"psq0ar\" data-start=\"1635\" data-end=\"1677\">Successfully passed internal arc tests<\/li>\n<li data-section-id=\"8g0j7c\" data-start=\"1678\" data-end=\"1729\">Enhances operational safety in fault conditions<\/li>\n<\/ul>\n<hr data-start=\"1731\" data-end=\"1734\" \/>\n<h3 data-section-id=\"114yc6h\" data-start=\"1736\" data-end=\"1775\">\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8\u30fb\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u6a5f\u80fd<\/h3>\n<ul data-start=\"1776\" data-end=\"1873\">\n<li data-section-id=\"b5zm3q\" data-start=\"1776\" data-end=\"1834\">Supports protection, control, and monitoring functions<\/li>\n<li data-section-id=\"1q3ju9x\" data-start=\"1835\" data-end=\"1873\">\u30aa\u30fc\u30c8\u30e1\u30fc\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u4e92\u63db\u6027<\/li>\n<\/ul>\n<p data-start=\"1875\" data-end=\"1923\">\ud83d\udc49 Suitable for modern smart grid applications<\/p>\n<hr data-start=\"1925\" data-end=\"1928\" \/>\n<h3 data-section-id=\"1nfccu1\" data-start=\"1930\" data-end=\"1969\">\u67d4\u8edf\u306a\u96fb\u6c17\u69cb\u6210<\/h3>\n<ul data-start=\"1970\" data-end=\"2085\">\n<li data-section-id=\"1gfibl8\" data-start=\"1970\" data-end=\"2043\">Supports various circuit breaker types (e.g., vacuum circuit breaker)<\/li>\n<li data-section-id=\"e5s0ig\" data-start=\"2044\" data-end=\"2085\">Adaptable to different system designs<\/li>\n<\/ul>\n<hr data-start=\"2087\" data-end=\"2090\" \/>\n<h2 data-section-id=\"1hq6i26\" data-start=\"2092\" data-end=\"2115\">\ud83d\udd39 \u69cb\u9020\u8a2d\u8a08<\/h2>\n<h3 data-section-id=\"s2r0x6\" data-start=\"2117\" data-end=\"2148\">\ud83d\udd38 Compartmentalized Design<\/h3>\n<p data-start=\"2149\" data-end=\"2177\">The cabinet is divided into:<\/p>\n<ul data-start=\"2178\" data-end=\"2286\">\n<li data-section-id=\"1wgz4bd\" data-start=\"2178\" data-end=\"2200\">Busbar compartment<\/li>\n<li data-section-id=\"pdbdqv\" data-start=\"2201\" data-end=\"2232\">Circuit breaker compartment<\/li>\n<li data-section-id=\"1eiou4l\" data-start=\"2233\" data-end=\"2254\">Cable compartment<\/li>\n<li data-section-id=\"qvi9pq\" data-start=\"2255\" data-end=\"2286\">Relay &amp; control compartment<\/li>\n<\/ul>\n<p data-start=\"2288\" data-end=\"2330\">\u27a1 Ensures safety and ease of maintenance<\/p>\n<hr data-start=\"2332\" data-end=\"2335\" \/>\n<h3 data-section-id=\"gmyjv4\" data-start=\"2337\" data-end=\"2372\">\ud83d\udd38 Withdrawable Circuit Breaker<\/h3>\n<ul data-start=\"2373\" data-end=\"2449\">\n<li data-section-id=\"12su80x\" data-start=\"2373\" data-end=\"2397\">Draw-out type design<\/li>\n<li data-section-id=\"1jlcd7y\" data-start=\"2398\" data-end=\"2449\">Position indication (service\/test\/disconnected)<\/li>\n<\/ul>\n<hr data-start=\"2451\" data-end=\"2454\" \/>\n<h3 data-section-id=\"1tnodmb\" data-start=\"2456\" data-end=\"2476\">\ud83d\udd38 \u30d0\u30b9\u30d0\u30fc\u30b7\u30b9\u30c6\u30e0<\/h3>\n<ul data-start=\"2477\" data-end=\"2549\">\n<li data-section-id=\"rj0pb8\" data-start=\"2477\" data-end=\"2513\">\u9ad8\u5c0e\u96fb\u6027\u9285\u30d0\u30b9\u30d0\u30fc<\/li>\n<li data-section-id=\"wthntg\" data-start=\"2514\" data-end=\"2549\">Optimized insulation and layout<\/li>\n<\/ul>\n<hr data-start=\"2551\" data-end=\"2554\" \/>\n<h3 data-section-id=\"4cyygx\" data-start=\"2556\" data-end=\"2583\">\ud83d\udd38 Protection &amp; Control<\/h3>\n<ul data-start=\"2584\" data-end=\"2661\">\n<li data-section-id=\"1821r22\" data-start=\"2584\" data-end=\"2622\">Integrated relay protection system<\/li>\n<li data-section-id=\"mjytnw\" data-start=\"2623\" data-end=\"2661\">Supports monitoring and automation<\/li>\n<\/ul>\n<hr data-start=\"2663\" data-end=\"2666\" \/>\n<h2 data-section-id=\"15du31k\" data-start=\"2668\" data-end=\"2686\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/h2>\n<ul data-start=\"2688\" data-end=\"2829\">\n<li data-section-id=\"79zscl\" data-start=\"2688\" data-end=\"2715\">Power generation plants<\/li>\n<li data-section-id=\"1rhd9cb\" data-start=\"2716\" data-end=\"2742\">Electrical substations<\/li>\n<li data-section-id=\"p9p65o\" data-start=\"2743\" data-end=\"2768\">Industrial facilities<\/li>\n<li data-section-id=\"1ev0gas\" data-start=\"2769\" data-end=\"2790\">\u9271\u696d<\/li>\n<li data-section-id=\"spqb3m\" data-start=\"2791\" data-end=\"2829\">Infrastructure and utility systems<\/li>\n<\/ul>\n<hr data-start=\"2831\" data-end=\"2834\" \/>\n<h2 data-section-id=\"1rg4wz9\" data-start=\"2836\" data-end=\"2860\">\u30e1\u30ea\u30c3\u30c8 \ud83d\udd39 \u6982\u8981<\/h2>\n<ul data-start=\"2862\" data-end=\"3142\">\n<li data-section-id=\"yg9hvx\" data-start=\"2862\" data-end=\"2895\">High safety armored structure<\/li>\n<li data-section-id=\"1jf9lx6\" data-start=\"2896\" data-end=\"2940\">Withdrawable design for easy maintenance<\/li>\n<li data-section-id=\"16mac2p\" data-start=\"2941\" data-end=\"2991\">Reliable \u201cFive Prevention\u201d interlocking system<\/li>\n<li data-section-id=\"m9wwwl\" data-start=\"2992\" data-end=\"3039\">Internal arc resistance for enhanced safety<\/li>\n<li data-section-id=\"12irse7\" data-start=\"3040\" data-end=\"3089\">Intelligent control and monitoring capability<\/li>\n<li data-section-id=\"1ga2229\" data-start=\"3090\" data-end=\"3142\">Suitable for medium voltage distribution systems<\/li>\n<\/ul>\n<hr data-start=\"3144\" data-end=\"3147\" \/>\n<h1 data-section-id=\"1lxd8kj\" data-start=\"3149\" data-end=\"3156\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h1>\n<h3 data-section-id=\"vipkmq\" data-start=\"3158\" data-end=\"3204\">1\ufe0f\u20e3 What is KYN28A-12 switchgear used for?<\/h3>\n<p data-start=\"3206\" data-end=\"3336\">\u305d\u306e\u305f\u3081\u306b\u4f7f\u308f\u308c\u308b\uff1a<br \/>\n\ud83d\udc49 Receiving, distributing, controlling, and protecting electrical power in medium voltage systems (3.6\u201312kV).<\/p>\n<hr data-start=\"3338\" data-end=\"3341\" \/>\n<h3 data-section-id=\"1feltfr\" data-start=\"3343\" data-end=\"3400\">2\ufe0f\u20e3 What is the advantage of withdrawable switchgear?<\/h3>\n<ul data-start=\"3402\" data-end=\"3484\">\n<li data-section-id=\"1rvzi8r\" data-start=\"3402\" data-end=\"3422\">Easy maintenance<\/li>\n<li data-section-id=\"6umffb\" data-start=\"3423\" data-end=\"3463\">Fast replacement of circuit breakers<\/li>\n<li data-section-id=\"16zesr\" data-start=\"3464\" data-end=\"3484\">\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u524a\u6e1b<\/li>\n<\/ul>\n<hr data-start=\"3486\" data-end=\"3489\" \/>\n<h3 data-section-id=\"14gmyk1\" data-start=\"3491\" data-end=\"3538\">3\ufe0f\u20e3 What does \u201carmored\u201d mean in switchgear?<\/h3>\n<p data-start=\"3540\" data-end=\"3663\">It refers to:<br \/>\n\ud83d\udc49 Metal compartmentalized structure, which improves safety by isolating faults within specific sections.<\/p>\n<hr data-start=\"3665\" data-end=\"3668\" \/>\n<h3 data-section-id=\"1vcvu6b\" data-start=\"3670\" data-end=\"3720\">4\ufe0f\u20e3 Does KYN28A-12 support automation systems?<\/h3>\n<p data-start=\"3722\" data-end=\"3739\">\u306f\u3044\u3001\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul data-start=\"3740\" data-end=\"3811\">\n<li data-section-id=\"1hrw582\" data-start=\"3740\" data-end=\"3762\">Monitoring systems<\/li>\n<li data-section-id=\"1dhi2u3\" data-start=\"3763\" data-end=\"3784\">Protection relays<\/li>\n<li data-section-id=\"18qstw7\" data-start=\"3785\" data-end=\"3811\">Smart grid integration<\/li>\n<\/ul>\n<hr data-start=\"3813\" data-end=\"3816\" \/>\n<h3 data-section-id=\"7zwnec\" data-start=\"3818\" data-end=\"3860\">5\ufe0f\u20e3 Is it safe under fault conditions?<\/h3>\n<p data-start=\"3862\" data-end=\"3870\">Yes. It:<\/p>\n<ul data-start=\"3871\" data-end=\"3949\">\n<li data-section-id=\"mbhcsd\" data-start=\"3871\" data-end=\"3900\">Passes internal arc tests<\/li>\n<li data-section-id=\"1lmnr1x\" data-start=\"3901\" data-end=\"3949\">Includes full mechanical interlocking system<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p data-start=\"238\" data-end=\"480\">The KYN28A-12 series armored withdrawable AC metal-enclosed switchgear is a second-generation intelligent medium voltage switchgear, developed by integrating advanced international technology with modern CNC manufacturing processes.<\/p>\n<p data-start=\"482\" data-end=\"623\">It is designed for power distribution, control, protection, and monitoring in 3.6\u201312kV AC systems with a rated frequency of 50Hz.<\/p>","protected":false},"featured_media":2144,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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