{"id":3123,"date":"2024-04-16T14:22:30","date_gmt":"2024-04-16T06:22:30","guid":{"rendered":"https:\/\/www.wolunelectric.com\/?post_type=product&#038;p=3123"},"modified":"2026-05-13T14:37:25","modified_gmt":"2026-05-13T06:37:25","slug":"lw9-72-5kv-outdoor-high-voltage-sf6-circuit-breaker","status":"publish","type":"product","link":"https:\/\/www.wolunelectric.com\/vi\/product\/lw9-72-5kv-outdoor-high-voltage-sf6-circuit-breaker\/","title":{"rendered":"LW9-72.5kV Outdoor High Voltage SF6 Circuit Breaker"},"content":{"rendered":"<h2>Introduction<\/h2>\n<p>LW9-72.5 porcelain column high voltage AC sulfur hexafluoridecircuit breaker is a new product,which adopts spring operating mechanism and three poles are installed on one frame to realize three-phase mechanical linkage through transmission mechanism.Electronic controlling can achieve remote and local operation, product performance is more superior. operating noise is small. It has the ability to break capacitive load and inductive load current,It can be used as a special circuit breaker for reactive power compensation.<\/p>\n<h2><\/h2>\n<h2>Basic Information<\/h2>\n<p>Type: LW9\u201172.5 (also marked as LW9\u201166kV)<\/p>\n<p>Rated Voltage: 72.5 kV<\/p>\n<p>Rated Frequency: 50 Hz<\/p>\n<p>Phase: 3-pole, three poles mounted on one frame with mechanical linkage<\/p>\n<p>Structure: Porcelain column type, single break, self-energy arc extinction<\/p>\n<p>Operating Mechanism: CT20 spring mechanism, motor energy storage, local and remote operation available<\/p>\n<p>Application: Outdoor substation, transmission line protection and tie breaker<\/p>\n<p>&nbsp;<\/p>\n<h2>Features<\/h2>\n<p>1. Excellent capacitive and inductive current breaking performance;<\/p>\n<p>2.Longer electrical life;<\/p>\n<p>3.Reliable insulation performance;<\/p>\n<p>4. Longer mechanical life;<\/p>\n<p>5. Safe and reliable operation, small maintenance workload.<\/p>\n<p>&nbsp;<\/p>\n<h2>Technical Parameters<\/h2>\n<p>Rated Current: 1250A \/ 1600A \/ 2000A \/ 2500A \/ 3150A<\/p>\n<div><\/div>\n<p>Rated Short-circuit Breaking Current: 20kA \/ 31.5kA \/ 40kA<\/p>\n<div><\/div>\n<p>Rated Short-time Withstand Current: Same as breaking current, duration 4s<\/p>\n<div><\/div>\n<p>Rated Peak Withstand Current: 80kA (31.5kA level)<\/p>\n<div><\/div>\n<p>SF\u2086 Gas Pressure at 20\u2103: 0.4 MPa (rated) \/ 0.3 MPa (alarm) \/ 0.2 MPa (lockout)<\/p>\n<div><\/div>\n<p>Insulation Level:<\/p>\n<div><\/div>\n<p>Power Frequency Withstand Voltage (1min, to earth): 160 kV (rms)<\/p>\n<div><\/div>\n<p>Lightning Impulse Withstand Voltage (to earth): 350 kV (peak)<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-3126\" src=\"http:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/72.5KV-SF6-circuit-breaker.jpg\" alt=\"lw9 72.5kv outdoor high voltage sf6 circuit breaker\" width=\"989\" height=\"542\" srcset=\"https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/72.5KV-SF6-circuit-breaker.jpg 989w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/72.5KV-SF6-circuit-breaker-300x164.jpg 300w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/72.5KV-SF6-circuit-breaker-768x421.jpg 768w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/72.5KV-SF6-circuit-breaker-600x329.jpg 600w\" sizes=\"(max-width: 989px) 100vw, 989px\" \/><\/p>\n<h2>Dimension<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-3127\" src=\"http:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/SF6-circuit-breaker-dimension.jpg\" alt=\"lw9 72.5kv outdoor high voltage sf6 circuit breaker\" width=\"953\" height=\"576\" srcset=\"https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/SF6-circuit-breaker-dimension.jpg 953w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/SF6-circuit-breaker-dimension-300x181.jpg 300w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/SF6-circuit-breaker-dimension-768x464.jpg 768w, https:\/\/www.wolunelectric.com\/wp-content\/uploads\/2024\/04\/SF6-circuit-breaker-dimension-600x363.jpg 600w\" sizes=\"(max-width: 953px) 100vw, 953px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>LW9-72.5kV outdoor high voltage SF6 circuit breaker adopts porcelain column single break structure with CT20 spring mechanism. Rated current 1250A to 3150A, short-circuit breaking current up to 40kA, featuring high reliability, low maintenance and stable performance for outdoor substation and transmission line application.<\/p>","protected":false},"featured_media":3128,"template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"LW9-72.5kV outdoor porcelain column SF6 circuit breaker, 1250A-3150A, 20kA-40kA, spring operating mechanism, for high voltage substation power transmission protection.","_seopress_robots_index":""},"product_brand":[],"product_cat":[44],"product_tag":[],"class_list":{"0":"post-3123","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-vacuum-circuit-breaker","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product\/3123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/media\/3128"}],"wp:attachment":[{"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/media?parent=3123"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product_brand?post=3123"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product_cat?post=3123"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/vi\/wp-json\/wp\/v2\/product_tag?post=3123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}