{"id":670,"date":"2026-01-26T06:26:50","date_gmt":"2026-01-26T06:26:50","guid":{"rendered":"http:\/\/yieou.com\/?post_type=products&#038;p=670"},"modified":"2026-09-16T02:12:41","modified_gmt":"2026-09-16T02:12:41","slug":"tg3-35q-180x180x550-3av3-bushing","status":"publish","type":"products","link":"https:\/\/yieou.com\/zh\/product\/tg3-35q-180x180x550-3av3-bushing\/","title":{"rendered":"TG3-35Q\/180x180x550 3AV3 \u7edd\u7f18\u5b50 (\u5de5\u9891\u8010\u538b\uff1a95kV\/1min\uff1b\u5c40\u90e8\u653e\u7535\uff1a\u22645pC @ 40.5kV)"},"content":{"rendered":"<h3 class=\"wp-block-heading\">\u4ea7\u54c1\u6982\u8ff0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/yieou.com\/zh\/products\/\" data-type=\"link\" data-id=\"https:\/\/yieou.com\/products\/\">TG3-35Q\/180\u00d7180\u00d7550 3AV3 \u5899\u5f0f\u7edd\u7f18\u5b50<\/a> \u73af\u6c27\u6811\u8102\u6d47\u6ce8\u7684\u6237\u5185\u9ad8\u538b\u9694\u79bb\u5f00\u5173\u5957\u7ba1\uff0c\u9002\u7528\u4e8e35\u5343\u4f0f\u548c40.5\u5343\u4f0f\u53ef\u62bd\u51fa\u5f0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Switchgear\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Switchgear\" target=\"_blank\" rel=\"noopener\">switchgear<\/a>\u5f00\u5173\u67dc\u53ca\u5176\u4ed6\u6210\u5957\u7535\u6c14\u8bbe\u5907\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is mainly used where live conductors pass through grounded partitions, equipment enclosures, or walls. The bushing provides insulating support, electric field shielding, and an electrical connection transition, helping ensure the safe and stable operation of high-voltage power systems.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6280\u672f\u89c4\u683c<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u53c2\u6570<\/th><th>\u89c4\u683c<\/th><\/tr><\/thead><tbody><tr><td>\u989d\u5b9a\u7535\u538b<\/td><td>40.5 kV, suitable for 35 kV systems<\/td><\/tr><tr><td>\u989d\u5b9a\u9891\u7387<\/td><td>50\/60 \u8d6b\u5179<\/td><\/tr><tr><td>\u5b89\u88c5\u5c3a\u5bf8<\/td><td>180 \u00d7 180 mm flange opening<\/td><\/tr><tr><td>\u603b\u9ad8\u5ea6<\/td><td>550\u6beb\u7c73<\/td><\/tr><tr><td>\u6750\u6599<\/td><td>Epoxy resin with a glass transition temperature of \u2265105\u00b0C<\/td><\/tr><tr><td>\u722c\u7535\u8ddd\u79bb<\/td><td>\u2265810\u6beb\u7c73<\/td><\/tr><tr><td>\u5de5\u9891\u8010\u538b<\/td><td>95 kV for 1 minute<\/td><\/tr><tr><td>\u96f7\u7535\u51b2\u51fb\u8010\u53d7\u7535\u538b<\/td><td>185\u2013200 kV peak<\/td><\/tr><tr><td>\u5c40\u90e8\u653e\u7535<\/td><td>\u22643 pC at a test voltage of 4.5 kV<\/td><\/tr><tr><td>\u989d\u5b9a\u7535\u6d41\u8303\u56f4<\/td><td>1,250\u20132,500 A, customizable<\/td><\/tr><tr><td>Structural Design<\/td><td>One-piece epoxy resin casting with an integrated shielding layer<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ea7\u54c1\u7279\u70b9<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">Excellent Insulation Performance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The bushing is manufactured using an integrated epoxy resin vacuum-casting process. A metal shielding layer is embedded inside the structure to distribute the electric field evenly, suppress partial discharge, and improve resistance to contamination and moisture.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Compact and Reliable Structure<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The central flange mounting structure and upper and lower shed-type external insulation sections provide sufficient creepage distance while fitting the limited internal space of withdrawable switchgear.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The product offers high mechanical strength and reliable resistance to vibration and impact.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u514d\u7ef4\u62a4\u8bbe\u8ba1<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The insulating surface provides good hydrophobicity and ageing resistance. No regular application of anti-pollution coatings is required. Routine surface cleaning is normally sufficient to maintain reliable insulation performance and reduce maintenance costs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Wide Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The product is compatible with 3AV3 standard switchgear configurations. Different rated currents and mounting dimensions can be customized to meet the requirements of various indoor high-voltage electrical assemblies.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Safe and Environmentally Friendly<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The product contains no insulating oil or SF\u2086 gas, eliminating the associated risks of leakage and explosion. It is suitable for environmentally responsible high-voltage electrical equipment.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e94\u7528<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Suitable for indoor AC high-voltage distribution systems with a rated voltage of 35 kV or 40.5 kV and a frequency of 50\/60 Hz.<\/li>\n\n\n\n<li>Mainly used in withdrawable switchgear, high-voltage switchgear, ring main units, box-type substations, and other complete electrical equipment.<\/li>\n\n\n\n<li>Used as an insulating and connecting component where busbars or cables pass through equipment enclosures or grounded partitions.<\/li>\n\n\n\n<li>Suitable for indoor high-voltage locations such as power stations, substations, and distribution rooms in industrial facilities.<\/li>\n\n\n\n<li>Provides insulation, separation, support, and secure connection between live conductors and grounded structures.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u64cd\u4f5c\u6761\u4ef6<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">Normal Operating Environment<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ambient temperature: -5\u00b0C to +40\u00b0C. Customized versions are available for special environments.<\/li>\n\n\n\n<li>Relative humidity: \u226485% at an ambient temperature of 20\u00b0C.<\/li>\n\n\n\n<li>Installation altitude: \u22641,000 m. For installations above 1,000 m, derating or a customized high-altitude version is required.<\/li>\n\n\n\n<li>Installation location: indoor.<\/li>\n\n\n\n<li>The installation environment should be free from severe vibration, flammable or explosive substances, corrosive gases, heavy dust, and conductive dust.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Extreme Operating Conditions<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Minimum ambient temperature: -25\u00b0C. A cold-resistant epoxy resin formulation is required.<\/li>\n\n\n\n<li>Maximum ambient temperature: +50\u00b0C. Derating is required to avoid accelerated insulation ageing.<\/li>\n\n\n\n<li>Maximum installation altitude: 3,000 m. A reinforced high-altitude version is required.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Prohibited Operating Environments<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Locations containing corrosive gases, vapours, dust, or explosive mixtures.<\/li>\n\n\n\n<li>Outdoor environments involving prolonged water immersion, heavy salt spray, or strong ultraviolet exposure.<\/li>\n\n\n\n<li>Areas with a seismic intensity above Level 8 unless additional mounting reinforcement is provided.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b89\u88c5\u4e0e\u7ef4\u62a4\u6ce8\u610f\u4e8b\u9879<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>During installation, ensure that the busbar or cable passes through the centre opening of the bushing. The conductor must not scrape against or press on the inner wall.<\/li>\n\n\n\n<li>Tighten the flange bolts evenly to prevent uneven mechanical stress, which may cause cracking or sealing failure.<\/li>\n\n\n\n<li>Inspect and clean the insulating surface regularly. Remove accumulated dust and oil to prevent a reduction in the effective creepage distance.<\/li>\n\n\n\n<li>If surface cracks, discharge marks, or abnormal temperature rise are detected during operation, stop the equipment immediately and carry out an inspection and repair.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"390\" height=\"390\" src=\"https:\/\/yieou.com\/wp-content\/uploads\/2026\/01\/TG3-35Q-180x180x550-3AV3-Bushing.png\" alt=\"TG3-35Q-180x180x550-3AV3-\u886c\u5957\" class=\"wp-image-671\" srcset=\"https:\/\/yieou.com\/wp-content\/uploads\/2026\/01\/TG3-35Q-180x180x550-3AV3-Bushing.png 390w, https:\/\/yieou.com\/wp-content\/uploads\/2026\/01\/TG3-35Q-180x180x550-3AV3-Bushing-300x300.png 300w, https:\/\/yieou.com\/wp-content\/uploads\/2026\/01\/TG3-35Q-180x180x550-3AV3-Bushing-150x150.png 150w\" sizes=\"(max-width: 390px) 100vw, 390px\" \/><\/figure>\n\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p>Product Overview The TG3-35Q\/180\u00d7180\u00d7550 3AV3 Wall Bushing is an epoxy resin cast indoor high-voltage wall bushing designed for 35 kV [&hellip;]<\/p>\n","protected":false},"featured_media":671,"template":"","meta":{"_acf_changed":false,"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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-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":"","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-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":"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":""},"mobile":{"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":""}}},"product_category":[34],"class_list":["post-670","products","type-products","status-publish","has-post-thumbnail","hentry","product_category-insulation-components-series"],"acf":{"products_imagines":[671,672],"short_describe":"<p><span style=\"color: #334155; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif; font-size: 16px; white-space: pre-wrap;\">The TG3-35Q\/180&times;180&times;550 3AV3 Wall Bushing is an epoxy resin cast indoor high-voltage wall bushing designed for 35 kV and 40.5 kV withdrawable switchgear, switchgear cabinets, and other complete electrical equipment.<\/span><\/p>","pdf_file":"","related_products":{"products":""},"technical_parameter":"","outline_and_installation_dimension":""},"_links":{"self":[{"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/products\/670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/types\/products"}],"acf:attachment":[{"embeddable":true,"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/media\/672"},{"embeddable":true,"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/media\/671"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/media\/671"}],"wp:attachment":[{"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/media?parent=670"}],"wp:term":[{"taxonomy":"product_category","embeddable":true,"href":"https:\/\/yieou.com\/zh\/wp-json\/wp\/v2\/product_category?post=670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}