{"id":555,"date":"2017-01-15T08:03:08","date_gmt":"2017-01-15T09:03:08","guid":{"rendered":"http:\/\/parminsanat.com\/en\/mv-surge-arrester.php"},"modified":"2017-07-22T13:01:36","modified_gmt":"2017-07-22T13:01:36","slug":"mv-surge-arrester","status":"publish","type":"post","link":"https:\/\/parminsanat.com\/en\/mv-surge-arrester\/","title":{"rendered":"Voltage limiting device HVL"},"content":{"rendered":"<h6>Voltage limiting device for DC traction systems<\/h6>\n<p>The HVL is a hybrid system composed by a metal-oxide (MO) surge arrester connected with two anti-parallel thyristors. The surge arrester limits the dangerous transient overvoltages from atmospheric discharges and switching. The thyristors trigger and limit the voltage in all cases with longer lasting overvoltages. The whole device is molded in silicone, designed and tested according to EN 50123-5 (IEC 61992-5) and IEC 60099-4.<\/p>\n<p>Voltage limiting devices are used to prevent impermissible touch voltages in DC traction systems in normal operations and in fault conditions by bonding the return circuit of a DC railway system to the earthing system or to the exposed conductive parts.<\/p>\n<h6>Applications<\/h6>\n<ul>\n<li>\nDC traction Systems\n<\/li>\n<\/ul>\n<h6>Why ABB?<\/h6>\n<ul>\n<li>\nOver 75 years of experience in overvoltage protection and more than 25 years with silicone insulation\n<\/li>\n<li>\nLocal and global ABB application support\n<\/li>\n<li>\nProven safe short-circuit design\n<\/li>\n<li>\nDesign life of more than 30 years\n<\/li>\n<li>\nOwn production of metal-oxide (MO) resistors\n<\/li>\n<li>\nLong term stable under system conditions\n<\/li>\n<li>\nProven safe short-circuit design\n<\/li>\n<li>\nMechanically strong design\n<\/li>\n<li>\nUV resistant  silicone housing with excellent pollution performance\n<\/li>\n<li>\nMaintenance free\n<\/li>\n<\/ul>\n<a class=\"button  button_large button_theme button_js\" href=\"http:\/\/new.abb.com\/high-voltage\/surge-arresters\/medium-voltage-arresters\" target=\"_blank\"   ><span class=\"button_label\">See ABB<\/span><\/a>\n\n","protected":false},"excerpt":{"rendered":"<p>Voltage limiting device for DC traction systems The HVL is a hybrid system composed by a metal-oxide (MO) surge arrester connected with two anti-parallel thyristors. The<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":277,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[37,2,38],"tags":[],"_links":{"self":[{"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/posts\/555"}],"collection":[{"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/comments?post=555"}],"version-history":[{"count":0,"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/posts\/555\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/media\/277"}],"wp:attachment":[{"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/media?parent=555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/categories?post=555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/parminsanat.com\/en\/wp-json\/wp\/v2\/tags?post=555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}