{"id":50560,"date":"2020-12-10T18:57:50","date_gmt":"2020-12-10T16:57:50","guid":{"rendered":"https:\/\/at3w.com\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/"},"modified":"2020-12-10T18:57:50","modified_gmt":"2020-12-10T16:57:50","slug":"permanent-overvoltages-what-are-what-damage-cause-types-protection","status":"publish","type":"post","link":"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/","title":{"rendered":"Permanent overvoltages: What are they, what damage can they cause and appropriate types of protection"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-flat ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/#What_are_permanent_overvoltages\" >What are permanent overvoltages?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/#What_is_the_difference_between_permanent_and_transient_overvoltages\" >What is the difference between permanent and transient overvoltages?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/#What_damage_can_be_caused_by_permanent_surges\" >What damage can be caused by permanent surges?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/#Types_of_permanent_surge_protectors\" >Types of permanent surge protectors<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/#Protection_that_includes_miniature_circuit_breaker\" >Protection that includes miniature circuit breaker:<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/#Protection_which_can_be_assembled_to_other_breaking_elements\" >Protection which can be assembled to other breaking elements:<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/#How_to_choose_the_right_model\" >How to choose the right model?<\/a><\/li><\/ul><\/nav><\/div>\n<p><strong>Aplicaciones Tecnol\u00f3gicas offers a wide range of products to protect installations and equipment against permanent overvoltages. This type of surge, unlike transient overvoltages, can last for an indeterminate period of time, causing significant damage to the equipment connected to the network, such as its deterioration or even destruction.<\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_are_permanent_overvoltages\"><\/span><strong>What are permanent overvoltages?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Permanent surges, either temporary or maintained, are voltage increases above 20 percent of the nominal value of the distribution network that are maintained for several cycles or permanently. They are due to phase imbalance, usually caused by a break in the neutral, defects in the connection of the neutral conductor or faults in the transformer stations.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_permanent_and_transient_overvoltages\"><\/span><strong>What is the difference between permanent and transient overvoltages?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The main difference between transient and permanent surges is their origin and duration. Transient overvoltages are very short duration (milliseconds) voltage increases, measured between two conductors, or between the conductor and the ground. They can be caused by atmospheric electrical discharges (lightning), switching processes or faults (earth contact or short-circuit).<\/p>\n<p>On the other hand, permanent or maintained surges are voltage peaks over a longer or even undetermined period of time. They occur due to phase imbalance, usually caused by problems in the electrical distribution network, or by faults in the connection of the neutral conductor or breakage of the same.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_damage_can_be_caused_by_permanent_surges\"><\/span><strong>What damage can be caused by permanent surges?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Electrical installations are the most likely to be damaged by permanent surges. The long duration of the overvoltage can lead to the loss of service of the connected electrical devices and electronics. This high voltage affects the equipment, reducing its useful life, and can even overheat it to the point of causing irreparable damage or even spark a fire.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Types_of_permanent_surge_protectors\"><\/span><strong>Types of permanent surge protectors<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The best way to protect an electrical installation from the effects of this prolonged rise in voltage is to use specific protectors against permanent surges. Thanks to these protectors, which detect the voltage fluctuation in the electrical network, the equipment is disconnected from the network before the overvoltage can cause damage.<\/p>\n<p>The permanent surge protectors manufactured by Aplicaciones Tecnol\u00f3gicas <strong>can be divided into two branches<\/strong>:<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Protection_that_includes_miniature_circuit_breaker\"><\/span><strong>Protection that includes miniature circuit breaker:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><a href=\"https:\/\/at3w.com\/en\/power-frequency-overvoltages\/manual-reclosing-protection\/protection-main-protective-device\/iga-test\/\" target=\"_blank\" rel=\"noopener noreferrer\">IGA TEST<\/a><a href=\"https:\/\/at3w.com\/en\/power-frequency-overvoltages\/manual-reclosing-protection\/protection-main-protective-device\/iga-test\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"img-responsive img-fluid alignright wp-image-23075 size-full\" src=\"https:\/\/at3w.com\/wp-content\/uploads\/2020\/12\/20_12_03-Sobretensiones-permanentes_IGA_TEST_200x220.jpg\" alt=\"Permanent overvoltages, IGA TEST\" width=\"221\" height=\"201\" \/><\/a><\/h3>\n<p>Its main features are:<\/p>\n<ul>\n<li>Integrated miniature circuit breaker<\/li>\n<li>They disconnect the line when they detect a permanent surge (like neutral faults), thus protecting the equipment installed downstream.<\/li>\n<li>They can be used in combination with ATSUB-D type surge protectors. The IGA TEST COMPACT version includes the surge protection in the same device.<\/li>\n<li>The integrated circuit breaker is available for the usual nominal currents: 6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100 and 125 A.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Protection_which_can_be_assembled_to_other_breaking_elements\"><\/span><strong>Protection which can be assembled to other breaking elements:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><a href=\"https:\/\/at3w.com\/en\/power-frequency-overvoltages\/manual-reclosing-protection\/only-protection\/atcontrol-b\/\" target=\"_blank\" rel=\"noopener noreferrer\">ATCONTROL<\/a><a href=\"https:\/\/at3w.com\/en\/power-frequency-overvoltages\/manual-reclosing-protection\/only-protection\/atcontrol-b\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"img-responsive img-fluid alignright wp-image-23079 size-full\" src=\"https:\/\/at3w.com\/wp-content\/uploads\/2020\/12\/20_12_03-Sobretensiones-permanentes_ATCONTROL_200x220.jpg\" alt=\"Permanent overvoltages, ATCONTROL\/B\" width=\"221\" height=\"201\" \/><\/a><\/h3>\n<p>Its main features are:<\/p>\n<ul>\n<li>It can be adapted to other breaking elements.<\/li>\n<li>The \/B version operates on a circuit breaker as a switching element (manual reset). While the \/R option works on the contactor, which gives it the capacity of automatic reclosing.<\/li>\n<li>The warning system consists in two light indicators: green (correct power supply) and red (permanent overvoltage)<\/li>\n<li>It derives transitory surges to earth.<\/li>\n<li>It is equipped with a thermodynamic device to disconnect it from the power supply in case of degradation and a warning system for transient overvoltage.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"How_to_choose_the_right_model\"><\/span><strong>How to choose the right model?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In order to correctly protect any installation, Aplicaciones Tecnol\u00f3gicas published a <a href=\"https:\/\/at3w.com\/en\/blog\/new-product-selection-guide-for-surge-protectors\/\" target=\"_blank\" rel=\"noopener noreferrer\">surge protection selection guide<\/a> that allows to choose the right permanent overvoltage protector by answering a few simple questions:<\/p>\n<ul>\n<li>Does it include protection against transient overvoltages?<\/li>\n<li>Does it include a breaking element?<\/li>\n<li>Protection with or without automatic reset<\/li>\n<li>Single-phase or three-phase line<\/li>\n<\/ul>\n<p>To learn more about products related to permanent overvoltages, access <a href=\"https:\/\/at3w.com\/en\/smart-lightning\/protection-power-frequency-overvoltages\/\" target=\"_blank\" rel=\"noopener noreferrer\">this page.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aplicaciones Tecnol\u00f3gicas offers a wide range of products to protect installations and equipment against permanent overvoltages. This type of surge, unlike transient overvoltages, can last for an indeterminate period of time, causing significant damage to the equipment connected to the network, such as its deterioration or even destruction.<\/p>\n","protected":false},"author":11,"featured_media":50561,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[5549,5574],"tags":[5644,5918],"class_list":["post-50560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-smart-lightning-en","category-surge-protection","tag-permanent-overvoltages","tag-surge-protection"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Permanent overvoltages: what are they - Aplicaciones Tecnol\u00f3gicas<\/title>\n<meta name=\"description\" content=\"Permanent overvoltages: Aplicaciones Tecnol\u00f3gicas offers a wide range of products to protect installations and equipment sensitive to surges.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/at3w.com\/en\/blog\/permanent-overvoltages-what-are-what-damage-cause-types-protection\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Permanent overvoltages: what are they - 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