{"id":1574,"date":"2025-12-03T11:04:32","date_gmt":"2025-12-03T03:04:32","guid":{"rendered":"https:\/\/www.northpwr.cn\/?post_type=product&p=1574"},"modified":"2025-12-03T11:04:32","modified_gmt":"2025-12-03T03:04:32","slug":"kyn28a-12-armored-withdrawable-ac-metal-clad-switchgear","status":"publish","type":"product","link":"https:\/\/www.northpwr.cn\/nl\/product\/kyn28a-12-armored-withdrawable-ac-metal-clad-switchgear\/","title":{"rendered":"KYN28A-12 Armored withdrawable AC metal-clad switchgear"},"content":{"rendered":"

The KYN28-12 metal-enclosed switchgear is suitable for 7.2~12kV three-phase AC 50Hz power grids. It is used for receiving and distributing electrical energy, as well as controlling, monitoring, and protecting circuits.<\/p>\n

Overview
\u3000\u3000The KYN28-12 metal-clad withdrawable switchgear is suitable for 7.2~12kV three-phase AC 50Hz power grids. It is used for receiving and distributing electrical energy, and for controlling, monitoring, and protecting circuits. It can be used in single busbar and single busbar sectionalizing systems. It complies with IEC298 \u201cAC metal-enclosed switchgear and controlgear above 1kV and up to 52kV\u201d, OEC694 \u201cCommon clauses for high-voltage switchgear and controlgear\u201d, GB3906 \u201c3.6kV-40.5kV AC metal-enclosed switchgear and controlgear\u201d, GB11022 \u201cCommon technical conditions for standards of high-voltage switchgear and controlgear\u201d, and DL\/T404 \u201c3.6kV-40.5kV AC metal-enclosed switchgear and controlgear\u201d, and has complete and reliable anti-misoperation functions.
Usage Environmental Conditions
\u3000\u3000\u2022 Ambient temperature: Maximum temperature +40\u2103, minimum temperature -15\u2103.<\/p>\n

\u3000\u3000\u2022 Ambient humidity: Daily average relative humidity not exceeding 95%, monthly average not exceeding 90%.<\/p>\n

\u3000\u3000\u2022 Altitude: Not exceeding 1000m.<\/p>\n

\u3000\u3000\u2022 Earthquake resistance: Seismic intensity not exceeding level 8.<\/p>\n

\u3000\u3000\u2022 The surrounding air should not be significantly polluted by corrosive or combustible gases, water vapor, etc. No frequent violent vibrations.<\/p>\n

\u3000\u3000\u2022 When used under conditions exceeding the normal environmental conditions specified in GB3906, it shall be negotiated between the user and our company.
Technical Parameters
Switchgear Technical Parameters<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Item<\/span><\/td>\nUnit<\/span><\/td>\nData<\/span><\/td>\n<\/tr>\n
Rated Voltage<\/span><\/td>\nkV<\/span><\/td>\n7.2\u300112<\/span><\/td>\n<\/tr>\n
Rated Frequency<\/span><\/td>\nHz<\/span><\/td>\n50<\/span><\/td>\n<\/tr>\n
Rated Current<\/span><\/td>\nA<\/span><\/td>\n630~4000<\/span><\/td>\n<\/tr>\n
Rated Insulation<\/span><\/td>\nImin Power Frequency Withstand Voltage (relative to ground\/open circuit)<\/span><\/td>\nkV<\/span><\/td>\n28\/32\u300142\/48<\/span><\/td>\n<\/tr>\n
Level<\/span><\/td>\nLightning Impulse Withstand Voltage (relative to ground\/open circuit)<\/span><\/td>\nkV<\/span><\/td>\n60\/70\u300175\uff0f85<\/span><\/td>\n<\/tr>\n
Rated Short-Time Withstand Current (4S)<\/span><\/td>\nkA<\/span><\/td>\n20\uff0c25\uff0c31.5\uff0c40\uff0c50<\/span><\/td>\n<\/tr>\n
Rated Peak Withstand Current<\/span><\/td>\nkA<\/span><\/td>\n50\uff0c63\uff0c80\uff0c100\uff0c125<\/span><\/td>\n<\/tr>\n
Protection Level<\/span><\/td>\n<\/span><\/td>\nShell IP4X, IP2X when the trolley compartment door is open<\/span><\/td>\n<\/tr>\n
Dimensions (Width \u00d7 Depth \u00d7 Height)<\/span><\/td>\nmm<\/span><\/td>\n800(1000)x1500(1700,1900) x 2370<\/span><\/td>\n<\/tr>\n
Weight<\/span><\/td>\nkg<\/span><\/td>\n800~1200<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u3000\u3000For rated short-time withstand current of 31.5kA and below, and branch busbar rated current of 1600A and below, the cabinet width is 800mm;<\/p>\n

\u3000\u3000For rated short-time withstand current of 40kA and above, and branch busbar rated current of 1600A and above, the cabinet width is 1000mm, and the cabinet depth is selected by the user according to the scheme.<\/p>\n

\u3000\u3000This switchgear is equipped with SCHVI vacuum circuit breakers manufactured by our company, and can also be equipped with Siemens 3AE and 3AJ1, ABB VD4 and HD4, and Schneider Evolis and EV12 vacuum circuit breakers.
Ordering Information
\u3000\u3000Please provide the following information when ordering:<\/p>\n

\u3000\u3000\u2022 Switchgear model, quantity, delivery date and primary scheme number;<\/p>\n

\u3000\u3000\u2022 Primary system diagram, secondary principle diagram and switchgear arrangement diagram;<\/p>\n

\u3000\u3000\u2022 Main busbar rated current and model and specifications of primary components;<\/p>\n

\u3000\u3000\u2022 Special requirements (if any).<\/p>","protected":false},"excerpt":{"rendered":"

The KYN28-12 metal-enclosed switchgear is suitable for 7.2~12kV three-phase AC 50Hz power grids. It is used for receiving and distributing electrical energy, as well as controlling, monitoring, and protecting circuits. Overview \u3000\u3000The KYN28-12 metal-clad withdrawable switchgear is suitable for 7.2~12kV three-phase AC 50Hz power grids. It is used for receiving and distributing electrical energy, and [\u2026]<\/p>","protected":false},"featured_media":1575,"template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":""},"product_brand":[],"product_cat":[58],"product_tag":[],"class_list":{"0":"post-1574","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ring-main-unit","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/www.northpwr.cn\/nl\/wp-json\/wp\/v2\/product\/1574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.northpwr.cn\/nl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.northpwr.cn\/nl\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.northpwr.cn\/nl\/wp-json\/wp\/v2\/media\/1575"}],"wp:attachment":[{"href":"https:\/\/www.northpwr.cn\/nl\/wp-json\/wp\/v2\/media?parent=1574"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.northpwr.cn\/nl\/wp-json\/wp\/v2\/product_brand?post=1574"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.northpwr.cn\/nl\/wp-json\/wp\/v2\/product_cat?post=1574"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.northpwr.cn\/nl\/wp-json\/wp\/v2\/product_tag?post=1574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}