![\"\"](\"http:\/\/147.182.176.68\/wp-content\/uploads\/2026\/07\/DFW-B77_33.jpg\")
<\/p>\nProduct Overview<\/p>\n
With the continuous development and progress of society, China\u2019s urban power grids have undergone significant changes, with most
\ncities having already established\u2014or currently establishing\u2014numerous areas of high electricity demand. The traditional method of
\nsupplying power directly to end-users via 12\/24 kV lines (or feeder lines) from substations is no longer sufficient to meet the demands
\nof urban development. Consequently, a new method of power supply has emerged, involving the supply of electricity to users via
\nswitching stations. However, as urban densification intensifies, some of the existing civil-engineering-based switching stations have
\ncome under constraints imposed by land availability and urban planning. Consequently, a more advanced and practical solution has
\nemerged: the outdoor intelligent switching station (outdoor ring main unit). This type of switching station requires no civil engineering
\nworks, occupies minimal space, offers highly flexible configuration, provides a more reliable power supply, and significantly reduces
\nthe time required for construction, installation and commissioning, whilst lowering overall costs.
\nWith the development of modern industry, the automation and intelligence of electrical control equipment are becoming increasingly
\nsophisticated. By utilising modern electronic technology, sensor technology, communication technology and computer network
\ntechnology to integrate the monitoring, protection, control and metering of power equipment under both normal and fault conditions,
\nachieving effective management has become an inevitable trend and direction of development.
\nThe intelligent switchyard (outdoor ring main unit) adopts and draws upon advanced international technologies. It integrates 12\/24 kV
\nswitchgear, circuit breakers, load switches, current and voltage transformers, 12\/24 kV power transformers (PTs), switchyard FTUs,
\nRTUs, communication control units (CCUs), 12\/24 kV metering and automatic meter reading systems, UPS power supplies and
\nindicating instruments, all installed and commissioned within a single, movable, sealed and moisture-proof stainless steel enclosure.
\nThis realises the integration of primary and secondary systems within urban distribution networks, enables modular assembly, shortens
\nconstruction cycles, and significantly enhances the operational reliability of urban power grids.<\/p>\n
Main technical parameters<\/p>\n
<\/p>\n
Installation base diagram (for reference only)<\/p>\n
![\"\"](\"http:\/\/147.182.176.68\/wp-content\/uploads\/2026\/07\/DFW-D4_33-scaled.jpg\")
<\/p>\n
Type Meaning<\/p>\n
![\"\"](\"http:\/\/147.182.176.68\/wp-content\/uploads\/2026\/07\/DFW-C75_33-scaled.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"
Product Overview With the continuous development and progress of society, China\u2019s urban power grids have undergone significant changes, with most cities having already established\u2014or currently establishing\u2014numerous areas of high electricity demand. The traditional method of supplying power directly to end-users via 12\/24 kV lines (or feeder lines) from substations is no longer sufficient to meet […]<\/p>\n","protected":false},"featured_media":2134,"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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[34,35],"product_tag":[],"class_list":["post-2133","product","type-product","status-publish","has-post-thumbnail","product_cat-complete-switchgear","product_cat-high-voltage-switchgear","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\n