{"id":44,"count":1,"description":"Distribution surge arrester is a protective device used in medium-voltage power distribution systems to protect electrical equipment against lightning and switching overvoltages. It is commonly installed on overhead distribution lines, distribution transformers, substations, and other electrical installations.\r\n\r\nMost modern distribution surge arresters use zinc oxide (ZnO) varistor blocks as their main protective components. They are typically designed with silicone rubber polymer housings, offering good resistance to pollution, moisture, and outdoor weather conditions. Their lightweight construction also makes transportation and installation easier.\r\n\r\n<img class=\"wp-image-4749 size-full aligncenter\" src=\"https:\/\/gaoyapowers.com\/wp-content\/uploads\/2026\/10\/surge-arrester-diagram.webp\" alt=\"surge arrester diagram\" width=\"1000\" height=\"537\" \/>\r\n\r\nLos pararrayos de distribuci\u00f3n est\u00e1n disponibles para sistemas de distribuci\u00f3n el\u00e9ctrica que operan a niveles de tensi\u00f3n de 11 kV, 15 kV, 22 kV, 24 kV y 36 kV. Seg\u00fan el modelo y los requisitos de la aplicaci\u00f3n, pueden dise\u00f1arse y ensayarse de acuerdo con la norma IEC 60099-4 o IEEE C62.11.\r\n\r\n<strong>Principio de funcionamiento del pararrayos de \u00f3xido met\u00e1lico<\/strong>\r\n\r\nA metal oxide surge arrester (MOA) uses zinc oxide (ZnO) varistor blocks with nonlinear voltage-current characteristics. The electrical resistance of these blocks changes with the applied voltage, allowing the arrester to limit transient overvoltages in power distribution systems.\r\n\r\nUnder normal operating voltage, the ZnO varistor blocks remain in a high-resistance state, allowing only a small leakage current to flow. When a lightning or switching overvoltage occurs, their resistance drops rapidly, allowing surge current to flow through the arrester to ground while limiting the voltage across the protected equipment.\r\n\r\nAfter the overvoltage subsides, the ZnO varistor blocks return to their high-resistance state, and the arrester continues operating normally. This process helps prevent insulation damage to distribution transformers and other connected electrical equipment.\r\n\r\n<strong>Especificaciones del pararrayos de distribuci\u00f3n<\/strong>\r\n\r\n<img class=\"wp-image-4748 aligncenter\" src=\"https:\/\/gaoyapowers.com\/wp-content\/uploads\/2026\/10\/distribution-surge-arrester-specifications.webp\" alt=\"surge arrester specifications\" width=\"800\" height=\"603\" \/>","link":"https:\/\/gaoyapowers.com\/es\/distribution-surge-arrester\/","name":"Pararrayos de distribuci\u00f3n","slug":"distribution-surge-arrester","taxonomy":"product_cat","parent":31,"meta":[],"_links":{"self":[{"href":"https:\/\/gaoyapowers.com\/es\/wp-json\/wp\/v2\/product_cat\/44"}],"collection":[{"href":"https:\/\/gaoyapowers.com\/es\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/gaoyapowers.com\/es\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"up":[{"embeddable":true,"href":"https:\/\/gaoyapowers.com\/es\/wp-json\/wp\/v2\/product_cat\/31"}],"wp:post_type":[{"href":"https:\/\/gaoyapowers.com\/es\/wp-json\/wp\/v2\/product?product_cat=44"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}