{"id":864,"date":"2023-12-14T15:36:02","date_gmt":"2023-12-14T07:36:02","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=864"},"modified":"2024-09-05T16:40:57","modified_gmt":"2024-09-05T08:40:57","slug":"how-does-spd-surge-protection-device-work","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/tr\/blog\/how-does-spd-surge-protection-device-work\/","title":{"rendered":"SPD (A\u015f\u0131r\u0131 Gerilim Koruma Cihaz\u0131) Nas\u0131l \u00c7al\u0131\u015f\u0131r?"},"content":{"rendered":"Surge protective devices (SPDs) are essential devices that protect electrical equipment from damage caused by voltage spikes or surges. These surges, which can be caused by lightning or power outages, can interfere with and even destroy sensitive electronic devices.\r\n\r\nSPDs work by diverting the excess voltage that is generated during a surge away from the devices that are being protected. They do this by moving the excess energy through a path that leads to the ground, away from the equipment. SPDs can be installed at the point where electrical power enters a building or even on individual devices to protect them from the voltage spikes.\r\n\r\nThe two major components of SPDs are metal oxide varistors (MOVs) and gas discharge tubes (GDTs). MOVs are made of a metal oxide and are designed to conduct electricity when a voltage surge occurs. When the voltage exceeds a certain threshold, the MOV conducts electricity, shunting the excess voltage away from the equipment it\u2019s protecting. GDTs work in a similar way, by breaking down and conducting excess voltage away from the device.\r\n\r\nIn addition to MOVs and GDTs, SPDs also usually include a fuse called a transient voltage suppressor (TVS). The TVS helps protect the SPD and the equipment it\u2019s connected to from any short circuits that may occur.\r\n\r\nIn summary, SPDs are critical devices that help protect electronic equipment from potentially harmful voltage surges. Without them, devices could be easily destroyed by surges caused by lightning, power outages, or other voltage fluctuations. With the right use of SPDs in place, you can have peace of mind and protect your valuable electronic devices from unexpected surges and outages.\r\n\r\n<strong>SPD Kategorileri veya T\u00fcrleri<\/strong>\r\n\r\nThe two main types of SPDs are voltage limiting and voltage switching components. Voltage limiting components change in impedance as the voltages rise, resulting in clamping the transient voltage. Voltage switching components \u201cturn on\u201d once a threshold voltage is exceeded and immediately drop to low impedance. Most systems today incorporate both component types together to aggregate the strengths and limit the weaknesses of each individual part.\r\n\r\nExamples of voltage limiting components are metal oxide varistors (MOVs) and transient voltage suppression (TVS) diodes. Voltage switching components include gas discharge tubes (GDTs) and spark gaps.\r\n\r\n<strong>\u00c7al\u0131\u015fma prensibi<\/strong>\r\n\r\nSPDs can vary in types but they have a common working principle: At normal voltage, it doesn\u2019t affect the operation of the circuit. Once the high spike voltage is generated, the impedance of the surge protection device will decrease very quickly. Thus, the surge current will flow into the ground through the surge protector instead of entering the equipment to protect the circuits and other equipment connected to it.\r\n\r\nTypes of SPD\r\n\r\n<img class=\"aligncenter wp-image-17913 size-full\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24.png\" sizes=\"(max-width: 806px) 100vw, 806px\" srcset=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24.png 806w, https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24-400x211.png 400w, https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24-768x406.png 768w, https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24-600x317.png 600w, https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24-150x79.png 150w\" alt=\"\" width=\"806\" height=\"426\" \/>\r\n\r\nTypes of SPD depend on the location, at which it is installed,\r\n\r\nType 1 SPDs \u2013 Main Distribution Panel\r\n\r\nType 2 SPDs \u2013 Sub-Distribution Panel\r\n\r\nType 3 SPDs \u2013 Load Protection Panel\r\n\r\nBy technology, there are two types of SPDs, Namely,\r\n<ul>\r\n \t<li>Gaz De\u015farj T\u00fcp\u00fc (GDT) \u2013 \u0130letkenli\u011fe neden olan \u00e7al\u0131\u015fma voltaj\u0131ndan daha y\u00fcksek bir voltajda par\u00e7alanmak \u00fczere tasarlanm\u0131\u015f soy gazlarla dolu kapal\u0131 bir cam\u0131n i\u00e7ine yerle\u015ftirilmi\u015f elektrotlar aras\u0131nda bir k\u0131v\u0131lc\u0131m aral\u0131\u011f\u0131 kullan\u0131r. Bu bir voltaj anahtarlama sistemidir (MOV'dan daha yava\u015f \u00e7al\u0131\u015f\u0131r).<\/li>\r\n \t<li>Metal Oksit Varist\u00f6r (MOV) \u2013 Bir MOV, sinterlenmi\u015f \u00c7inko Oksit ve ayn\u0131 tek\/\u00e7ok katmanl\u0131 sandvi\u00e7in di\u011fer oksitlerinden olu\u015fan dairesel\/dikd\u00f6rtgen \u015fekilli bir g\u00f6vdedir. Bir dalgalanma meydana geldi\u011finde, MOV \u00fczerindeki diren\u00e7 h\u0131zla azal\u0131r ve b\u00fcy\u00fck bir ak\u0131m ak\u0131\u015f\u0131na neden olur. MOV'lar Gerilim s\u0131n\u0131rlama sistemidir (GDT'den daha h\u0131zl\u0131 hareket eder).<\/li>\r\n \t<li>\u00c7\u0131\u011f Ar\u0131za Diyotu (ABD) \u2013 Nominal voltajdan daha b\u00fcy\u00fck bir voltaj uyguland\u0131\u011f\u0131nda \u00e7\u0131\u011f ar\u0131zas\u0131 (yar\u0131 iletkende b\u00fcy\u00fck miktarda ak\u0131m\u0131n akmas\u0131na izin veren elektriksel bir olay) deneyimlemek i\u00e7in tasarlanm\u0131\u015f bir P-N Ba\u011flant\u0131 diyotu.<\/li>\r\n<\/ul>","protected":false},"featured_media":865,"parent":0,"menu_order":145,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-864","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"Surge protective devices (SPDs) are essential devices that protect electrical equipment from damage caused by voltage spikes or surges. These surges, which can be caused by lightning or power outages, can interfere with and even destroy sensitive electronic devices.","txt":"Surge protective devices (SPDs) are essential devices that protect electrical equipment from damage caused by voltage spikes or surges. These surges, which can be caused by lightning or power outages, can interfere with and even destroy sensitive electronic devices.\r\n\r\nSPDs work by diverting the excess voltage that is generated during a surge away from the devices that are being protected. They do this by moving the excess energy through a path that leads to the ground, away from the equipment. SPDs can be installed at the point where electrical power enters a building or even on individual devices to protect them from the voltage spikes.\r\n\r\nThe two major components of SPDs are metal oxide varistors (MOVs) and gas discharge tubes (GDTs). MOVs are made of a metal oxide and are designed to conduct electricity when a voltage surge occurs. When the voltage exceeds a certain threshold, the MOV conducts electricity, shunting the excess voltage away from the equipment it\u2019s protecting. GDTs work in a similar way, by breaking down and conducting excess voltage away from the device.\r\n\r\nIn addition to MOVs and GDTs, SPDs also usually include a fuse called a transient voltage suppressor (TVS). The TVS helps protect the SPD and the equipment it\u2019s connected to from any short circuits that may occur.\r\n\r\nIn summary, SPDs are critical devices that help protect electronic equipment from potentially harmful voltage surges. Without them, devices could be easily destroyed by surges caused by lightning, power outages, or other voltage fluctuations. With the right use of SPDs in place, you can have peace of mind and protect your valuable electronic devices from unexpected surges and outages.\r\n\r\n<strong>SPD Categories or Types<\/strong>\r\n\r\nThe two main types of SPDs are voltage limiting and voltage switching components. Voltage limiting components change in impedance as the voltages rise, resulting in clamping the transient voltage. Voltage switching components \u201cturn on\u201d once a threshold voltage is exceeded and immediately drop to low impedance. Most systems today incorporate both component types together to aggregate the strengths and limit the weaknesses of each individual part.\r\n\r\nExamples of voltage limiting components are metal oxide varistors (MOVs) and transient voltage suppression (TVS) diodes. Voltage switching components include gas discharge tubes (GDTs) and spark gaps.\r\n\r\n<strong>Working Principle<\/strong>\r\n\r\nSPDs can vary in types but they have a common working principle: At normal voltage, it doesn\u2019t affect the operation of the circuit. Once the high spike voltage is generated, the impedance of the surge protection device will decrease very quickly. Thus, the surge current will flow into the ground through the surge protector instead of entering the equipment to protect the circuits and other equipment connected to it.\r\n\r\nTypes of SPD\r\n\r\n<img class=\"aligncenter wp-image-17913 size-full\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24.png\" sizes=\"(max-width: 806px) 100vw, 806px\" srcset=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24.png 806w, https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24-400x211.png 400w, https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24-768x406.png 768w, https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24-600x317.png 600w, https:\/\/www.britecelectric.com\/wp-content\/uploads\/2023\/12\/24-150x79.png 150w\" alt=\"\" width=\"806\" height=\"426\" \/>\r\n\r\nTypes of SPD depend on the location, at which it is installed,\r\n\r\nType 1 SPDs \u2013 Main Distribution Panel\r\n\r\nType 2 SPDs \u2013 Sub-Distribution Panel\r\n\r\nType 3 SPDs \u2013 Load Protection Panel\r\n\r\nBy technology, there are two types of SPDs, Namely,\r\n<ul>\r\n \t<li>Gas Discharge Tube (GDT) \u2013 Uses a spark gap across electrodes placed in a sealed glass filled with noble gases which are designed to break down at a voltage higher than the operating voltage causing it to conduct. This is a voltage-switching system (acts slower than MOV).<\/li>\r\n \t<li>Metal Oxide Varistor (MOV) \u2013 An MOV is a circular\/rectangular-shaped body of sintered Zinc Oxide &amp; other oxides of a single\/multilayer sandwich of the same. When a surge occurs, the resistance across the MOV rapidly decreases causing a large current flow. MOVs are Voltage limiting system (acts quicker than GDT).<\/li>\r\n \t<li>Avalanche Breakdown Diode (ABD) \u2013 A P-N Junction diode designed to experience an avalanche breakdown (an electrical phenomenon in a semiconductor that allows large amounts of current to flow) when a voltage is applied that is greater than the rated voltage.<\/li>\r\n<\/ul>"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/tr\/wp-json\/wp\/v2\/blog\/864","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/tr\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/tr\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/tr\/wp-json\/wp\/v2\/media\/865"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/tr\/wp-json\/wp\/v2\/media?parent=864"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/tr\/wp-json\/wp\/v2\/blog_category?post=864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}