{"id":2126,"date":"2025-05-22T07:56:00","date_gmt":"2025-05-22T07:56:00","guid":{"rendered":"https:\/\/ev-chargerstations.com\/?page_id=2126"},"modified":"2026-03-12T04:37:10","modified_gmt":"2026-03-12T04:37:10","slug":"glossarios-de-transformadores","status":"publish","type":"page","link":"https:\/\/energypowertransformer.com\/pt\/transformer-glossaries\/","title":{"rendered":"Gloss\u00e1rios de transformadores"},"content":{"rendered":"<div class=\"banner has-hover\" id=\"banner-493462865\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                        <div class=\"overlay\"><\/div>            \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n   <div id=\"text-box-1511563843\" class=\"text-box banner-layer x50 md-x50 lg-x50 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-center\">\n                  \n<h2 data-start=\"330\" data-end=\"526\">\u00a0<\/h2>\n<h2 data-start=\"330\" data-end=\"526\">\u00a0<\/h2>\n<h2 data-start=\"330\" data-end=\"526\">\u00a0<\/h2>\n<h2 data-start=\"330\" data-end=\"526\">\u00a0<\/h2>\n<p>\u00a0<\/p>\n<h2 style=\"text-align: left;\" data-start=\"330\" data-end=\"526\"><span style=\"color: #000000; font-size: 150%;\">Gloss\u00e1rios de transformadores<\/span><\/h2>\n<p style=\"text-align: left;\" data-start=\"94\" data-end=\"217\"><span style=\"color: #000000; font-size: 150%;\">Explore os principais termos e defini\u00e7\u00f5es com os gloss\u00e1rios elaborados por especialistas do Energy Transformer.<\/span><\/p>\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-1511563843 {\n  width: 100%;\n}\n#text-box-1511563843 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-493462865 {\n  padding-top: 600px;\n  background-color: rgb(255,255,255);\n}\n#banner-493462865 .bg.bg-loaded {\n  background-image: url(https:\/\/energypowertransformer.com\/wp-content\/uploads\/2025\/05\/Chinas-Best-Power-Transformer-Manufacturer-and-Factory-Wholesale-Supplier-for-10kV\u2013500kV-1024x427.webp);\n}\n#banner-493462865 .overlay {\n  background-color: rgba(255, 255, 255, 0.5);\n}\n<\/style>\n  <\/div>\n\n\n<div class=\"row\"  id=\"row-1798227104\">\n\n\t<div id=\"col-699341011\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2 data-start=\"82\" data-end=\"117\"><span style=\"font-size: 150%;\"><strong data-start=\"85\" data-end=\"117\">Gloss\u00e1rios de transformadores (A-Z)<\/strong><\/span><\/h2>\n<h3 data-start=\"119\" data-end=\"128\"><span style=\"font-size: 150%;\"><strong data-start=\"123\" data-end=\"128\">A<\/strong><\/span><\/h3>\n<ul data-start=\"129\" data-end=\"665\">\n<li data-start=\"129\" data-end=\"198\">\n<p data-start=\"131\" data-end=\"198\"><strong data-start=\"131\" data-end=\"160\">Corrente alternada (AC):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Uma corrente que inverte periodicamente o sentido, ao contr\u00e1rio da corrente cont\u00ednua (CC) que flui num s\u00f3 sentido.<\/span><\/p>\n<\/li>\n<li data-start=\"199\" data-end=\"254\">\n<p data-start=\"201\" data-end=\"254\"><strong data-start=\"201\" data-end=\"216\">Alternador:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Uma m\u00e1quina rotativa que gera corrente alternada (CA).<\/span><\/p>\n<\/li>\n<li data-start=\"255\" data-end=\"319\">\n<p data-start=\"257\" data-end=\"319\"><strong data-start=\"257\" data-end=\"281\">Temperatura ambiente:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A temperatura ambiente circundante.<\/span><\/p>\n<\/li>\n<li data-start=\"320\" data-end=\"374\">\n<p data-start=\"322\" data-end=\"374\"><strong data-start=\"322\" data-end=\"334\">Amper\u00edmetro:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um dispositivo para medir a corrente el\u00e9ctrica em amperes.<\/span><\/p>\n<\/li>\n<li data-start=\"375\" data-end=\"437\">\n<p data-start=\"377\" data-end=\"437\"><strong data-start=\"377\" data-end=\"397\">Autotransformador:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um transformador com um enrolamento que actua como prim\u00e1rio e secund\u00e1rio.<\/span><\/p>\n<\/li>\n<li data-start=\"438\" data-end=\"502\">\n<p data-start=\"440\" data-end=\"502\"><strong data-start=\"440\" data-end=\"462\">Indutor de n\u00facleo de ar:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um indutor que utiliza ar (ou v\u00e1cuo) como n\u00facleo magn\u00e9tico.<\/span><\/p>\n<\/li>\n<li data-start=\"503\" data-end=\"558\">\n<p data-start=\"505\" data-end=\"558\"><strong data-start=\"505\" data-end=\"518\">Ampacidade:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A quantidade m\u00e1xima de corrente el\u00e9ctrica que um condutor ou dispositivo pode suportar antes de sofrer uma deteriora\u00e7\u00e3o imediata ou progressiva.<\/span><\/p>\n<\/li>\n<li data-start=\"559\" data-end=\"665\">\n<p data-start=\"561\" data-end=\"665\"><strong data-start=\"561\" data-end=\"586\">Bobina de supress\u00e3o de arco:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Dispositivo utilizado para suprimir os arcos el\u00e9ctricos.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"667\" data-end=\"676\"><span style=\"font-size: 150%;\"><strong data-start=\"671\" data-end=\"676\">B<\/strong><\/span><\/h3>\n<ul data-start=\"677\" data-end=\"1098\">\n<li data-start=\"677\" data-end=\"731\">\n<p data-start=\"679\" data-end=\"731\"><strong data-start=\"679\" data-end=\"691\">Bucha:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um componente isolante que permite a passagem de um condutor atrav\u00e9s de um inv\u00f3lucro ligado \u00e0 terra.<\/span><\/p>\n<\/li>\n<li data-start=\"732\" data-end=\"801\">\n<p data-start=\"734\" data-end=\"801\"><strong data-start=\"734\" data-end=\"761\">Transformador Buck-Boost:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Utilizado para pequenos ajustes de tens\u00e3o em sistemas de ilumina\u00e7\u00e3o e controlo.<\/span><\/p>\n<\/li>\n<li data-start=\"802\" data-end=\"866\">\n<p data-start=\"804\" data-end=\"866\"><strong data-start=\"804\" data-end=\"826\">Tens\u00e3o de rutura:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A tens\u00e3o \u00e0 qual o isolamento falha e se torna condutor.<\/span><\/p>\n<\/li>\n<li data-start=\"867\" data-end=\"942\">\n<p data-start=\"869\" data-end=\"942\"><strong data-start=\"869\" data-end=\"902\">BIL (Basic Insulation Level):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A tens\u00e3o m\u00e1xima que um equipamento el\u00e9trico pode suportar sem sofrer avarias.<\/span><\/p>\n<\/li>\n<li data-start=\"943\" data-end=\"997\">\n<p data-start=\"945\" data-end=\"997\"><strong data-start=\"945\" data-end=\"957\">Banca:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Liga\u00e7\u00e3o de dois ou mais transformadores para funcionarem como uma \u00fanica unidade.<\/span><\/p>\n<\/li>\n<li data-start=\"998\" data-end=\"1098\">\n<p data-start=\"1000\" data-end=\"1098\"><strong data-start=\"1000\" data-end=\"1019\">Revezamento Buchholz:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um rel\u00e9 acionado por g\u00e1s utilizado para a prote\u00e7\u00e3o de transformadores imersos em \u00f3leo.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1100\" data-end=\"1109\"><span style=\"font-size: 150%;\"><strong data-start=\"1104\" data-end=\"1109\">C<\/strong><\/span><\/h3>\n<ul data-start=\"1110\" data-end=\"1626\">\n<li data-start=\"1110\" data-end=\"1172\">\n<p data-start=\"1112\" data-end=\"1172\"><strong data-start=\"1112\" data-end=\"1132\">Diagrama de circuito:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Esquema que representa as liga\u00e7\u00f5es el\u00e9ctricas utilizando s\u00edmbolos normalizados.<\/span><\/p>\n<\/li>\n<li data-start=\"1173\" data-end=\"1230\">\n<p data-start=\"1175\" data-end=\"1230\"><strong data-start=\"1175\" data-end=\"1190\">Condu\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A transfer\u00eancia de energia (el\u00e9ctrica ou t\u00e9rmica) atrav\u00e9s de um condutor.<\/span><\/p>\n<\/li>\n<li data-start=\"1231\" data-end=\"1287\">\n<p data-start=\"1233\" data-end=\"1287\"><strong data-start=\"1233\" data-end=\"1247\">Contactor:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um rel\u00e9 de grandes dimens\u00f5es utilizado para controlar circuitos de pot\u00eancia.<\/span><\/p>\n<\/li>\n<li data-start=\"1288\" data-end=\"1342\">\n<p data-start=\"1290\" data-end=\"1342\"><strong data-start=\"1290\" data-end=\"1302\">Arrefecimento:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">O processo de dissipa\u00e7\u00e3o de calor de um transformador.<\/span><\/p>\n<\/li>\n<li data-start=\"1343\" data-end=\"1409\">\n<p data-start=\"1345\" data-end=\"1409\"><strong data-start=\"1345\" data-end=\"1369\">Perdas de cobre (I\u00b2R):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Perdas de calor devido ao fluxo de corrente atrav\u00e9s da resist\u00eancia do enrolamento.<\/span><\/p>\n<\/li>\n<li data-start=\"1410\" data-end=\"1465\">\n<p data-start=\"1412\" data-end=\"1465\"><strong data-start=\"1412\" data-end=\"1425\">Acoplamento:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Transfer\u00eancia de energia entre circuitos, frequentemente atrav\u00e9s de campos magn\u00e9ticos.<\/span><\/p>\n<\/li>\n<li data-start=\"1466\" data-end=\"1528\">\n<p data-start=\"1468\" data-end=\"1528\"><strong data-start=\"1468\" data-end=\"1488\">Satura\u00e7\u00e3o do n\u00facleo:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Uma condi\u00e7\u00e3o em que um aumento da corrente n\u00e3o resulta num aumento do fluxo magn\u00e9tico.<\/span><\/p>\n<\/li>\n<li data-start=\"1529\" data-end=\"1626\">\n<p data-start=\"1531\" data-end=\"1626\"><strong data-start=\"1531\" data-end=\"1547\">Capacit\u00e2ncia:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A capacidade de um sistema para armazenar uma carga el\u00e9ctrica.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1628\" data-end=\"1637\"><span style=\"font-size: 150%;\"><strong data-start=\"1632\" data-end=\"1637\">D<\/strong><\/span><\/h3>\n<ul data-start=\"1638\" data-end=\"2051\">\n<li data-start=\"1638\" data-end=\"1704\">\n<p data-start=\"1640\" data-end=\"1704\"><strong data-start=\"1640\" data-end=\"1664\">Corrente cont\u00ednua (DC):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Corrente el\u00e9ctrica que flui num \u00fanico sentido.<\/span><\/p>\n<\/li>\n<li data-start=\"1705\" data-end=\"1762\">\n<p data-start=\"1707\" data-end=\"1762\"><strong data-start=\"1707\" data-end=\"1722\">Diel\u00e9trico:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Material isolante entre os condutores de um condensador ou transformador.<\/span><\/p>\n<\/li>\n<li data-start=\"1763\" data-end=\"1834\">\n<p data-start=\"1765\" data-end=\"1834\"><strong data-start=\"1765\" data-end=\"1794\">Transformador de distribui\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Diminui a tens\u00e3o para uso residencial ou comercial.<\/span><\/p>\n<\/li>\n<li data-start=\"1835\" data-end=\"1898\">\n<p data-start=\"1837\" data-end=\"1898\"><strong data-start=\"1837\" data-end=\"1858\">Liga\u00e7\u00e3o Delta:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um m\u00e9todo de liga\u00e7\u00e3o de tr\u00eas enrolamentos de transformador numa configura\u00e7\u00e3o triangular.<\/span><\/p>\n<\/li>\n<li data-start=\"1899\" data-end=\"1954\">\n<p data-start=\"1901\" data-end=\"1954\"><strong data-start=\"1901\" data-end=\"1914\">Desajuste:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Ajuste de um circuito para evitar a resson\u00e2ncia numa determinada frequ\u00eancia.<\/span><\/p>\n<\/li>\n<li data-start=\"1955\" data-end=\"2051\">\n<p data-start=\"1957\" data-end=\"2051\"><strong data-start=\"1957\" data-end=\"1972\">Ciclo de trabalho:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">O r\u00e1cio entre o tempo de funcionamento e o tempo total num ciclo de repeti\u00e7\u00e3o.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2053\" data-end=\"2062\"><span style=\"font-size: 150%;\"><strong data-start=\"2057\" data-end=\"2062\">E<\/strong><\/span><\/h3>\n<ul data-start=\"2063\" data-end=\"2500\">\n<li data-start=\"2063\" data-end=\"2120\">\n<p data-start=\"2065\" data-end=\"2120\"><strong data-start=\"2065\" data-end=\"2080\">Efici\u00eancia:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Rela\u00e7\u00e3o entre a pot\u00eancia de sa\u00edda e a pot\u00eancia de entrada, expressa em percentagem.<\/span><\/p>\n<\/li>\n<li data-start=\"2121\" data-end=\"2189\">\n<p data-start=\"2123\" data-end=\"2189\"><strong data-start=\"2123\" data-end=\"2149\">Isolamento el\u00e9trico:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Material que impede a passagem de corrente indesejada.<\/span><\/p>\n<\/li>\n<li data-start=\"2190\" data-end=\"2262\">\n<p data-start=\"2192\" data-end=\"2262\"><strong data-start=\"2192\" data-end=\"2222\">Indu\u00e7\u00e3o electromagn\u00e9tica:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Gera\u00e7\u00e3o de tens\u00e3o atrav\u00e9s da altera\u00e7\u00e3o do campo magn\u00e9tico.<\/span><\/p>\n<\/li>\n<li data-start=\"2263\" data-end=\"2326\">\n<p data-start=\"2265\" data-end=\"2326\"><strong data-start=\"2265\" data-end=\"2286\">Corrente excitante:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A corrente necess\u00e1ria para energizar o n\u00facleo do transformador.<\/span><\/p>\n<\/li>\n<li data-start=\"2327\" data-end=\"2396\">\n<p data-start=\"2329\" data-end=\"2396\"><strong data-start=\"2329\" data-end=\"2354\">Escudo eletrost\u00e1tico:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um condutor ligado \u00e0 terra colocado entre os enrolamentos para reduzir o acoplamento capacitivo.<\/span><\/p>\n<\/li>\n<li data-start=\"2397\" data-end=\"2500\">\n<p data-start=\"2399\" data-end=\"2500\"><strong data-start=\"2399\" data-end=\"2417\">Correntes de Foucault:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Correntes circulantes induzidas nos condutores por um campo magn\u00e9tico vari\u00e1vel.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2502\" data-end=\"2511\"><span style=\"font-size: 150%;\"><strong data-start=\"2506\" data-end=\"2511\">F<\/strong><\/span><\/h3>\n<ul data-start=\"2512\" data-end=\"2917\">\n<li data-start=\"2512\" data-end=\"2576\">\n<p data-start=\"2514\" data-end=\"2576\"><strong data-start=\"2514\" data-end=\"2534\">Fluxo (magn\u00e9tico):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Linhas de campo magn\u00e9tico geradas no n\u00facleo de um transformador.<\/span><\/p>\n<\/li>\n<li data-start=\"2577\" data-end=\"2635\">\n<p data-start=\"2579\" data-end=\"2635\"><strong data-start=\"2579\" data-end=\"2593\">Frequ\u00eancia:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">N\u00famero de ciclos CA por segundo, medido em hertz (Hz).<\/span><\/p>\n<\/li>\n<li data-start=\"2636\" data-end=\"2689\">\n<p data-start=\"2638\" data-end=\"2689\"><strong data-start=\"2638\" data-end=\"2647\">Fus\u00edvel:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um dispositivo de seguran\u00e7a que se funde sob corrente excessiva para interromper o circuito.<\/span><\/p>\n<\/li>\n<li data-start=\"2690\" data-end=\"2752\">\n<p data-start=\"2692\" data-end=\"2752\"><strong data-start=\"2692\" data-end=\"2710\">Lei de Faraday:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">O princ\u00edpio de que uma altera\u00e7\u00e3o no campo magn\u00e9tico pode induzir uma for\u00e7a eletromotriz (EMF).<\/span><\/p>\n<\/li>\n<li data-start=\"2753\" data-end=\"2814\">\n<p data-start=\"2755\" data-end=\"2814\"><strong data-start=\"2755\" data-end=\"2772\">N\u00facleo de ferrite:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um tipo de n\u00facleo magn\u00e9tico feito de ferrite, utilizado em transformadores de alta frequ\u00eancia.<\/span><\/p>\n<\/li>\n<li data-start=\"2815\" data-end=\"2917\">\n<p data-start=\"2817\" data-end=\"2917\"><strong data-start=\"2817\" data-end=\"2834\">Fuga de fluxo:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Fluxo magn\u00e9tico que n\u00e3o segue o caminho pretendido num circuito magn\u00e9tico.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2919\" data-end=\"2928\"><span style=\"font-size: 150%;\"><strong data-start=\"2923\" data-end=\"2928\">G<\/strong><\/span><\/h3>\n<ul data-start=\"2929\" data-end=\"3333\">\n<li data-start=\"2929\" data-end=\"2998\">\n<p data-start=\"2931\" data-end=\"2998\"><strong data-start=\"2931\" data-end=\"2956\">Liga\u00e7\u00e3o \u00e0 terra (Earthing):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Liga\u00e7\u00e3o dos componentes \u00e0 terra por raz\u00f5es de seguran\u00e7a.<\/span><\/p>\n<\/li>\n<li data-start=\"2999\" data-end=\"3060\">\n<p data-start=\"3001\" data-end=\"3060\"><strong data-start=\"3001\" data-end=\"3018\">Anel de classifica\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Anel met\u00e1lico utilizado nos casquilhos para gerir os campos el\u00e9ctricos.<\/span><\/p>\n<\/li>\n<li data-start=\"3061\" data-end=\"3115\">\n<p data-start=\"3063\" data-end=\"3115\"><strong data-start=\"3063\" data-end=\"3073\">Gauss:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Uma unidade de densidade de fluxo magn\u00e9tico.<\/span><\/p>\n<\/li>\n<li data-start=\"3116\" data-end=\"3173\">\n<p data-start=\"3118\" data-end=\"3173\"><strong data-start=\"3118\" data-end=\"3131\">Perda de lacunas:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Perdas devidas a espa\u00e7os de ar no trajeto magn\u00e9tico.<\/span><\/p>\n<\/li>\n<li data-start=\"3174\" data-end=\"3230\">\n<p data-start=\"3176\" data-end=\"3230\"><strong data-start=\"3176\" data-end=\"3188\">Gaseifica\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A liberta\u00e7\u00e3o de g\u00e1s no \u00f3leo de transformador devido \u00e0 decomposi\u00e7\u00e3o.<\/span><\/p>\n<\/li>\n<li data-start=\"3231\" data-end=\"3333\">\n<p data-start=\"3233\" data-end=\"3333\"><strong data-start=\"3233\" data-end=\"3250\">Falha de terra:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Uma liga\u00e7\u00e3o n\u00e3o intencional entre um circuito el\u00e9trico e a terra.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3335\" data-end=\"3344\"><span style=\"font-size: 150%;\"><strong data-start=\"3339\" data-end=\"3344\">H<\/strong><\/span><\/h3>\n<ul data-start=\"3345\" data-end=\"3790\">\n<li data-start=\"3345\" data-end=\"3403\">\n<p data-start=\"3347\" data-end=\"3403\"><strong data-start=\"3347\" data-end=\"3361\">Harm\u00f3nicos:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Distor\u00e7\u00f5es de tens\u00e3o\/corrente em m\u00faltiplos da frequ\u00eancia de base.<\/span><\/p>\n<\/li>\n<li data-start=\"3404\" data-end=\"3470\">\n<p data-start=\"3406\" data-end=\"3470\"><strong data-start=\"3406\" data-end=\"3428\">HV (Alta Tens\u00e3o):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">N\u00edveis de tens\u00e3o tipicamente superiores a 1 kV.<\/span><\/p>\n<\/li>\n<li data-start=\"3471\" data-end=\"3533\">\n<p data-start=\"3473\" data-end=\"3533\"><strong data-start=\"3473\" data-end=\"3491\">Teste de aquecimento:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um ensaio que mede o aumento da temperatura do transformador em carga.<\/span><\/p>\n<\/li>\n<li data-start=\"3534\" data-end=\"3598\">\n<p data-start=\"3536\" data-end=\"3598\"><strong data-start=\"3536\" data-end=\"3556\">Perda por histerese:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Perda de energia devido ao desfasamento entre a intensidade do campo magn\u00e9tico e a magnetiza\u00e7\u00e3o.<\/span><\/p>\n<\/li>\n<li data-start=\"3599\" data-end=\"3668\">\n<p data-start=\"3601\" data-end=\"3668\"><strong data-start=\"3601\" data-end=\"3626\">Temperatura do ponto quente:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A temperatura mais elevada no enrolamento do transformador.<\/span><\/p>\n<\/li>\n<li data-start=\"3669\" data-end=\"3790\">\n<p data-start=\"3671\" data-end=\"3790\"><strong data-start=\"3671\" data-end=\"3707\">Transformador hermeticamente selado:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um transformador selado para evitar a entrada de humidade.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3792\" data-end=\"3801\"><span style=\"font-size: 150%;\"><strong data-start=\"3796\" data-end=\"3801\">I<\/strong><\/span><\/h3>\n<ul data-start=\"3802\" data-end=\"4239\">\n<li data-start=\"3802\" data-end=\"3860\">\n<p data-start=\"3804\" data-end=\"3860\"><strong data-start=\"3804\" data-end=\"3818\">Imped\u00e2ncia:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Resist\u00eancia \u00e0 corrente alternada, incluindo tanto a resist\u00eancia como a react\u00e2ncia.<\/span><\/p>\n<\/li>\n<li data-start=\"3861\" data-end=\"3924\">\n<p data-start=\"3863\" data-end=\"3924\"><strong data-start=\"3863\" data-end=\"3882\">Corrente de irrup\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Surto de corrente quando um transformador \u00e9 energizado pela primeira vez.<\/span><\/p>\n<\/li>\n<li data-start=\"3925\" data-end=\"3995\">\n<p data-start=\"3927\" data-end=\"3995\"><strong data-start=\"3927\" data-end=\"3953\">Resist\u00eancia de isolamento:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Resist\u00eancia oferecida pelo material isolante ao fluxo de corrente.<\/span><\/p>\n<\/li>\n<li data-start=\"3996\" data-end=\"4067\">\n<p data-start=\"3998\" data-end=\"4067\"><strong data-start=\"3998\" data-end=\"4025\">Transformador de instrumentos:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Utilizado para medir a tens\u00e3o ou a corrente sem liga\u00e7\u00e3o direta a linhas de alta tens\u00e3o.<\/span><\/p>\n<\/li>\n<li data-start=\"4068\" data-end=\"4138\">\n<p data-start=\"4070\" data-end=\"4138\"><strong data-start=\"4070\" data-end=\"4096\">Transformador de isolamento:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Proporciona isolamento el\u00e9trico entre os seus enrolamentos prim\u00e1rio e secund\u00e1rio.<\/span><\/p>\n<\/li>\n<li data-start=\"4139\" data-end=\"4239\">\n<p data-start=\"4141\" data-end=\"4239\"><strong data-start=\"4141\" data-end=\"4156\">Indut\u00e2ncia:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A propriedade de um condutor atrav\u00e9s da qual uma altera\u00e7\u00e3o na corrente induz uma for\u00e7a eletromotriz.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"4241\" data-end=\"4250\"><span style=\"font-size: 150%;\"><strong data-start=\"4245\" data-end=\"4250\">J<\/strong><\/span><\/h3>\n<ul data-start=\"4251\" data-end=\"4659\">\n<li data-start=\"4251\" data-end=\"4312\">\n<p data-start=\"4253\" data-end=\"4312\"><strong data-start=\"4253\" data-end=\"4270\">Efeito Joule:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Calor produzido pela corrente el\u00e9ctrica num condutor.<\/span><\/p>\n<\/li>\n<li data-start=\"4313\" data-end=\"4374\">\n<p data-start=\"4315\" data-end=\"4374\"><strong data-start=\"4315\" data-end=\"4332\">Cabo de liga\u00e7\u00e3o em ponte:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um cabo tempor\u00e1rio utilizado para liga\u00e7\u00f5es el\u00e9ctricas.<\/span><\/p>\n<\/li>\n<li data-start=\"4375\" data-end=\"4444\">\n<p data-start=\"4377\" data-end=\"4444\"><strong data-start=\"4377\" data-end=\"4402\">Temperatura de jun\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A temperatura no ponto em que diferentes materiais se encontram num dispositivo.<\/span><\/p>\n<\/li>\n<li data-start=\"4445\" data-end=\"4500\">\n<p data-start=\"4447\" data-end=\"4500\"><strong data-start=\"4447\" data-end=\"4458\">Casaco:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A cobertura protetora exterior de um cabo ou transformador.<\/span><\/p>\n<\/li>\n<li data-start=\"4501\" data-end=\"4556\">\n<p data-start=\"4503\" data-end=\"4556\"><strong data-start=\"4503\" data-end=\"4514\">Jitter:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Pequenas e r\u00e1pidas varia\u00e7\u00f5es numa forma de onda resultantes de flutua\u00e7\u00f5es no sinal.<\/span><\/p>\n<\/li>\n<li data-start=\"4557\" data-end=\"4659\">\n<p data-start=\"4559\" data-end=\"4659\"><strong data-start=\"4559\" data-end=\"4576\">Caixa de deriva\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um inv\u00f3lucro que aloja liga\u00e7\u00f5es el\u00e9ctricas.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"4661\" data-end=\"4670\"><span style=\"font-size: 150%;\"><strong data-start=\"4665\" data-end=\"4670\">K<\/strong><\/span><\/h3>\n<ul data-start=\"4671\" data-end=\"5092\">\n<li data-start=\"4671\" data-end=\"4742\">\n<p data-start=\"4673\" data-end=\"4742\"><strong data-start=\"4673\" data-end=\"4700\">kVA (Kilovolt-Amperes):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Unidade de pot\u00eancia aparente num transformador.<\/span><\/p>\n<\/li>\n<li data-start=\"4743\" data-end=\"4800\">\n<p data-start=\"4745\" data-end=\"4800\"><strong data-start=\"4745\" data-end=\"4758\">Fator K:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Indica a capacidade de um transformador para lidar com cargas n\u00e3o lineares.<\/span><\/p>\n<\/li>\n<li data-start=\"4801\" data-end=\"4868\">\n<p data-start=\"4803\" data-end=\"4868\"><strong data-start=\"4803\" data-end=\"4826\">Tens\u00e3o do ponto do joelho:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A tens\u00e3o \u00e0 qual o n\u00facleo de um transformador come\u00e7a a saturar.<\/span><\/p>\n<\/li>\n<li data-start=\"4869\" data-end=\"4931\">\n<p data-start=\"4871\" data-end=\"4931\"><strong data-start=\"4871\" data-end=\"4889\">Kilowatt (kW):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Unidade de pot\u00eancia real.<\/span><\/p>\n<\/li>\n<li data-start=\"4932\" data-end=\"4991\">\n<p data-start=\"4934\" data-end=\"4991\"><strong data-start=\"4934\" data-end=\"4949\">Ponto do joelho:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">O ponto na curva de magnetiza\u00e7\u00e3o onde o n\u00facleo come\u00e7a a saturar.<\/span><\/p>\n<\/li>\n<li data-start=\"4992\" data-end=\"5092\">\n<p data-start=\"4994\" data-end=\"5092\"><strong data-start=\"4994\" data-end=\"5009\">Classifica\u00e7\u00e3o KVA:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A pot\u00eancia aparente m\u00e1xima que um transformador pode suportar.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5094\" data-end=\"5103\"><span style=\"font-size: 150%;\"><strong data-start=\"5098\" data-end=\"5103\">L<\/strong><\/span><\/h3>\n<ul data-start=\"5104\" data-end=\"5527\">\n<li data-start=\"5104\" data-end=\"5162\">\n<p data-start=\"5106\" data-end=\"5162\"><strong data-start=\"5106\" data-end=\"5120\">Perda de carga:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Perda de pot\u00eancia na alimenta\u00e7\u00e3o da carga devido \u00e0 resist\u00eancia dos enrolamentos.<\/span><\/p>\n<\/li>\n<li data-start=\"5163\" data-end=\"5230\">\n<p data-start=\"5165\" data-end=\"5230\"><strong data-start=\"5165\" data-end=\"5188\">Para-raios:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Protege o transformador contra sobretens\u00f5es induzidas por raios.<\/span><\/p>\n<\/li>\n<li data-start=\"5231\" data-end=\"5297\">\n<p data-start=\"5233\" data-end=\"5297\"><strong data-start=\"5233\" data-end=\"5255\">React\u00e2ncia de fuga:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">React\u00e2ncia devida ao fluxo de fuga que n\u00e3o liga os enrolamentos prim\u00e1rio e secund\u00e1rio.<\/span><\/p>\n<\/li>\n<li data-start=\"5298\" data-end=\"5359\">\n<p data-start=\"5300\" data-end=\"5359\"><strong data-start=\"5300\" data-end=\"5317\">Tens\u00e3o de linha:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Tens\u00e3o medida entre duas linhas num sistema trif\u00e1sico.<\/span><\/p>\n<\/li>\n<li data-start=\"5360\" data-end=\"5425\">\n<p data-start=\"5362\" data-end=\"5425\"><strong data-start=\"5362\" data-end=\"5383\">Carregar comutador de deriva\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Um dispositivo que ajusta a tens\u00e3o do transformador em condi\u00e7\u00f5es de carga.<\/span><\/p>\n<\/li>\n<li data-start=\"5426\" data-end=\"5527\">\n<p data-start=\"5428\" data-end=\"5527\"><strong data-start=\"5428\" data-end=\"5444\">Laminados:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Folhas finas de a\u00e7o el\u00e9trico utilizadas para construir o n\u00facleo do transformador.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5529\" data-end=\"5538\"><span style=\"font-size: 150%;\"><strong data-start=\"5533\" data-end=\"5538\">M<\/strong><\/span><\/h3>\n<ul data-start=\"5539\" data-end=\"5985\">\n<li data-start=\"5539\" data-end=\"5607\">\n<p data-start=\"5541\" data-end=\"5607\"><strong data-start=\"5541\" data-end=\"5565\">Corrente de magnetiza\u00e7\u00e3o:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Corrente necess\u00e1ria para energizar o n\u00facleo magn\u00e9tico.<\/span><\/p>\n<\/li>\n<li data-start=\"5608\" data-end=\"5668\">\n<p data-start=\"5610\" data-end=\"5668\"><strong data-start=\"5610\" data-end=\"5626\">\u00d3leo mineral:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">\u00d3leo utilizado nos transformadores para isolamento e arrefecimento.<\/span><\/p>\n<\/li>\n<li data-start=\"5669\" data-end=\"5740\">\n<p data-start=\"5671\" data-end=\"5740\"><strong data-start=\"5671\" data-end=\"5698\">MVA (Megavolt-Amperes):<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Unidade de pot\u00eancia aparente para grandes transformadores.<\/span><\/p>\n<\/li>\n<li data-start=\"5741\" data-end=\"5807\">\n<p data-start=\"5743\" data-end=\"5807\"><strong data-start=\"5743\" data-end=\"5765\">Indut\u00e2ncia m\u00fatua:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A capacidade de um indutor induzir tens\u00e3o noutro indutor pr\u00f3ximo.<\/span><\/p>\n<\/li>\n<li data-start=\"5808\" data-end=\"5878\">\n<p data-start=\"5810\" data-end=\"5878\"><strong data-start=\"5810\" data-end=\"5836\">Densidade do fluxo magn\u00e9tico:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A quantidade de fluxo magn\u00e9tico numa determinada \u00e1rea.<\/span><\/p>\n<\/li>\n<li data-start=\"5879\" data-end=\"5985\">\n<p data-start=\"5881\" data-end=\"5985\"><strong data-start=\"5881\" data-end=\"5902\">Teor de humidade:<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">A quantidade de \u00e1gua presente no isolamento ou no \u00f3leo do transformador.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5987\" data-end=\"5996\"><span style=\"font-size: 150%;\"><strong data-start=\"5991\" data-end=\"5996\">N<\/strong><\/span><\/h3>\n<ul data-start=\"5997\" data-end=\"6488\">\n<li data-start=\"5997\" data-end=\"6072\">\n<p data-start=\"5999\" data-end=\"6072\"><strong data-start=\"5999\" data-end=\"6016\">Perda sem carga:<\/strong> Pot\u00eancia consumida por um transformador energizado sem carga.<\/p>\n<\/li>\n<li data-start=\"6073\" data-end=\"6159\">\n<p data-start=\"6075\" data-end=\"6159\"><strong data-start=\"6075\" data-end=\"6093\">Ponto Neutro:<\/strong> Caminho de retorno comum para a corrente el\u00e9ctrica em sistemas trif\u00e1sicos.<\/p>\n<\/li>\n<li data-start=\"6160\" data-end=\"6248\">\n<p data-start=\"6162\" data-end=\"6248\"><strong data-start=\"6162\" data-end=\"6183\">Classifica\u00e7\u00e3o da placa de identifica\u00e7\u00e3o:<\/strong> Os limites de funcionamento especificados pelo fabricante para um transformador.<\/p>\n<\/li>\n<li data-start=\"6249\" data-end=\"6320\">\n<p data-start=\"6251\" data-end=\"6320\"><strong data-start=\"6251\" data-end=\"6267\">N\u00edvel de ru\u00eddo:<\/strong> O som emitido por um transformador durante o funcionamento.<\/p>\n<\/li>\n<li data-start=\"6321\" data-end=\"6387\">\n<p data-start=\"6323\" data-end=\"6387\"><strong data-start=\"6323\" data-end=\"6343\">Tens\u00e3o nominal:<\/strong> A tens\u00e3o de funcionamento padr\u00e3o de um sistema.<\/p>\n<\/li>\n<li data-start=\"6388\" data-end=\"6488\">\n<p data-start=\"6390\" data-end=\"6488\"><strong data-start=\"6390\" data-end=\"6406\">Classifica\u00e7\u00e3o NEMA:<\/strong> Normas estabelecidas pela Associa\u00e7\u00e3o Nacional de Fabricantes El\u00e9ctricos para equipamento.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"108\" data-end=\"117\"><span style=\"font-size: 150%;\"><strong data-start=\"112\" data-end=\"117\">O<\/strong><\/span><\/h3>\n<ul data-start=\"118\" data-end=\"743\">\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"48\" data-end=\"76\">Transformador imerso em \u00f3leo<\/strong>Um tipo de transformador de pot\u00eancia em que os enrolamentos e o n\u00facleo magn\u00e9tico est\u00e3o totalmente submersos em \u00f3leo mineral isolante. O \u00f3leo proporciona isolamento el\u00e9trico e uma dissipa\u00e7\u00e3o de calor eficiente.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"272\" data-end=\"293\">Capacidade de sobrecarga<\/strong>A capacidade de um transformador para funcionar temporariamente acima do seu kVA nominal sem sofrer danos, frequentemente definida para dura\u00e7\u00f5es e condi\u00e7\u00f5es ambientais espec\u00edficas.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"447\" data-end=\"468\">Teste de circuito aberto<\/strong>Um ensaio normalmente efectuado no lado de baixa tens\u00e3o de um transformador para medir as perdas no n\u00facleo (ferro) e a corrente de magnetiza\u00e7\u00e3o em condi\u00e7\u00f5es de vazio.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"621\" data-end=\"651\">OLTC (comutador de deriva\u00e7\u00e3o em carga)<\/strong>Um comutador de deriva\u00e7\u00e3o que permite a regula\u00e7\u00e3o da tens\u00e3o enquanto o transformador est\u00e1 sob tens\u00e3o e em carga, utilizado em aplica\u00e7\u00f5es industriais e de rede que requerem um controlo cont\u00ednuo da tens\u00e3o.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"832\" data-end=\"847\">Sobretens\u00e3o<\/strong>Condi\u00e7\u00e3o em que a tens\u00e3o aplicada excede o limite de projeto do transformador, podendo levar \u00e0 rutura do isolamento ou a outras falhas.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"993\" data-end=\"1018\">Alarme de temperatura excessiva<\/strong>Uma carater\u00edstica de prote\u00e7\u00e3o que alerta os operadores quando a temperatura interna excede os limites predefinidos, ajudando a evitar o sobreaquecimento e a avaria.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1167\" data-end=\"1201\">Comutador de deriva\u00e7\u00e3o fora de circuito (OCTC)<\/strong>Dispositivo manual ou motorizado que ajusta as deriva\u00e7\u00f5es do enrolamento para regula\u00e7\u00e3o da tens\u00e3o, mas apenas quando o transformador est\u00e1 desenergizado.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1335\" data-end=\"1370\">Indicador da temperatura do \u00f3leo (OTI)<\/strong>Dispositivo que monitoriza e indica a temperatura m\u00e1xima do \u00f3leo no interior de um transformador imerso em \u00f3leo, frequentemente associado a alarmes ou circuitos de disparo.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1514\" data-end=\"1533\">Indicador de n\u00edvel de \u00f3leo<\/strong>Instrumento que indica o n\u00edvel atual do \u00f3leo isolante no interior do tanque do transformador, essencial para a manuten\u00e7\u00e3o de rotina e a dete\u00e7\u00e3o de fugas.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1685\" data-end=\"1704\">Conservador de \u00f3leo<\/strong>Um tanque de expans\u00e3o montado acima do tanque principal do transformador, permitindo a expans\u00e3o e contra\u00e7\u00e3o t\u00e9rmica do \u00f3leo isolante, minimizando a exposi\u00e7\u00e3o ao ar e \u00e0 humidade.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1884\" data-end=\"1902\">Filtragem de \u00f3leo<\/strong>O processo de purifica\u00e7\u00e3o do \u00f3leo de transformador atrav\u00e9s da remo\u00e7\u00e3o de humidade, g\u00e1s e part\u00edculas para restaurar as suas propriedades de isolamento e arrefecimento.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"2042\" data-end=\"2066\">Detetor de fugas de \u00f3leo<\/strong>Um sensor ou sistema de indicador visual que identifica a perda involunt\u00e1ria de \u00f3leo do dep\u00f3sito, assinalando potenciais falhas de veda\u00e7\u00e3o ou de soldadura.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"2204\" data-end=\"2224\">Vida operacional<\/strong>Vida \u00fatil prevista de um transformador em condi\u00e7\u00f5es normais, variando normalmente entre 25 e 40 anos, dependendo do projeto, da carga e da manuten\u00e7\u00e3o.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"2380\" data-end=\"2406\">Prote\u00e7\u00e3o contra sobreintensidades<\/strong>Um mecanismo de seguran\u00e7a (como fus\u00edveis ou disjuntores) concebido para desligar o transformador da fonte em caso de n\u00edveis de corrente que excedam o limite de seguran\u00e7a.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"2575\" data-end=\"2597\">V\u00e1lvula de amostragem de \u00f3leo<\/strong>V\u00e1lvula instalada no tanque do transformador para extrair pequenas quantidades de \u00f3leo para an\u00e1lise peri\u00f3dica da rigidez diel\u00e9ctrica, teor de humidade e gases dissolvidos.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\"><strong data-start=\"25\" data-end=\"59\">ONAN (Oil Natural Air Natural)<\/strong>:<br data-start=\"60\" data-end=\"63\" \/>Um sistema passivo de arrefecimento de transformadores em que o calor \u00e9 dissipado atrav\u00e9s da convec\u00e7\u00e3o natural do \u00f3leo isolante e do ar ambiente, ideal para condi\u00e7\u00f5es normais de carga e ambiente.<\/li>\n<li data-start=\"634\" data-end=\"743\"><strong data-start=\"237\" data-end=\"289\">Atualiza\u00e7\u00e3o opcional - ONAF (For\u00e7ado a ar natural a \u00f3leo)<\/strong>:<br data-start=\"290\" data-end=\"293\" \/>Uma vers\u00e3o melhorada que utiliza ventoinhas de ar for\u00e7ado para aumentar a capacidade de arrefecimento, adequada para ambientes de carga elevada ou de alta temperatura.<\/li>\n<\/ul>\n<h3 data-start=\"745\" data-end=\"754\"><span style=\"font-size: 150%;\"><strong data-start=\"749\" data-end=\"754\">P<\/strong><\/span><\/h3>\n<ul data-start=\"755\" data-end=\"1288\">\n<li data-start=\"755\" data-end=\"828\">\n<p data-start=\"757\" data-end=\"828\"><strong data-start=\"757\" data-end=\"777\">Enrolamento prim\u00e1rio:<\/strong> O enrolamento de entrada ligado \u00e0 fonte de alimenta\u00e7\u00e3o.<\/p>\n<\/li>\n<li data-start=\"829\" data-end=\"906\">\n<p data-start=\"831\" data-end=\"906\"><strong data-start=\"831\" data-end=\"848\">Fator de pot\u00eancia:<\/strong> O r\u00e1cio entre a pot\u00eancia real e a pot\u00eancia aparente num circuito.<\/p>\n<\/li>\n<li data-start=\"907\" data-end=\"998\">\n<p data-start=\"909\" data-end=\"998\"><strong data-start=\"909\" data-end=\"931\">Descarga parcial:<\/strong> Rutura diel\u00e9ctrica localizada do isolamento sob alta tens\u00e3o.<\/p>\n<\/li>\n<li data-start=\"999\" data-end=\"1103\">\n<p data-start=\"1001\" data-end=\"1103\"><strong data-start=\"1001\" data-end=\"1023\">Transformador de pot\u00eancia:<\/strong> Utilizado em redes de transmiss\u00e3o para transferir energia el\u00e9ctrica a altas tens\u00f5es.<\/p>\n<\/li>\n<li data-start=\"1104\" data-end=\"1192\">\n<p data-start=\"1106\" data-end=\"1192\"><strong data-start=\"1106\" data-end=\"1127\">Rel\u00e9 de prote\u00e7\u00e3o:<\/strong> Dispositivo que acciona um disjuntor em caso de avaria.<\/p>\n<\/li>\n<li data-start=\"1193\" data-end=\"1288\">\n<p data-start=\"1195\" data-end=\"1288\"><strong data-start=\"1195\" data-end=\"1211\">Desloca\u00e7\u00e3o de fase:<\/strong> Uma mudan\u00e7a no \u00e2ngulo de fase entre as tens\u00f5es de entrada e sa\u00edda nos transformadores.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1290\" data-end=\"1299\"><span style=\"font-size: 150%;\"><strong data-start=\"1294\" data-end=\"1299\">Q<\/strong><\/span><\/h3>\n<ul data-start=\"1300\" data-end=\"1760\">\n<li data-start=\"1300\" data-end=\"1401\">\n<p data-start=\"1302\" data-end=\"1401\"><strong data-start=\"1302\" data-end=\"1325\">Fator de qualidade (Q):<\/strong> Uma medida da efici\u00eancia de indutores e condensadores num circuito de corrente alternada.<\/p>\n<\/li>\n<li data-start=\"1402\" data-end=\"1473\">\n<p data-start=\"1404\" data-end=\"1473\"><strong data-start=\"1404\" data-end=\"1418\">Resfriamento:<\/strong> A supress\u00e3o ou extin\u00e7\u00e3o de arcos el\u00e9ctricos.<\/p>\n<\/li>\n<li data-start=\"1474\" data-end=\"1572\">\n<p data-start=\"1476\" data-end=\"1572\"><strong data-start=\"1476\" data-end=\"1498\">Corrente quiescente:<\/strong> A corrente consumida por um transformador ou circuito quando n\u00e3o est\u00e1 a fornecer carga.<\/p>\n<\/li>\n<li data-start=\"1573\" data-end=\"1656\">\n<p data-start=\"1575\" data-end=\"1656\"><strong data-start=\"1575\" data-end=\"1596\">Desconex\u00e3o r\u00e1pida:<\/strong> Conectores que permitem desligar rapidamente os circuitos el\u00e9ctricos.<\/p>\n<\/li>\n<li data-start=\"1657\" data-end=\"1760\">\n<p data-start=\"1659\" data-end=\"1760\"><strong data-start=\"1659\" data-end=\"1688\">Conversor quase-ressonante:<\/strong> Um tipo de conversor de pot\u00eancia que utiliza a resson\u00e2ncia para reduzir as perdas de comuta\u00e7\u00e3o.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1762\" data-end=\"1771\"><span style=\"font-size: 150%;\"><strong data-start=\"1766\" data-end=\"1771\">R<\/strong><\/span><\/h3>\n<ul data-start=\"1772\" data-end=\"2290\">\n<li data-start=\"1772\" data-end=\"1845\">\n<p data-start=\"1774\" data-end=\"1845\"><strong data-start=\"1774\" data-end=\"1788\">React\u00e2ncia:<\/strong> Oposi\u00e7\u00e3o \u00e0 corrente alternada causada por indut\u00e2ncia e capacit\u00e2ncia.<\/p>\n<\/li>\n<li data-start=\"1846\" data-end=\"1934\">\n<p data-start=\"1848\" data-end=\"1934\"><strong data-start=\"1848\" data-end=\"1873\">Regula\u00e7\u00e3o (tens\u00e3o):<\/strong> A varia\u00e7\u00e3o da tens\u00e3o secund\u00e1ria de vazio para plena carga.<\/p>\n<\/li>\n<li data-start=\"1935\" data-end=\"2032\">\n<p data-start=\"1937\" data-end=\"2032\"><strong data-start=\"1937\" data-end=\"1956\">Capacidade nominal:<\/strong> Pot\u00eancia m\u00e1xima que um transformador pode fornecer em condi\u00e7\u00f5es normais.<\/p>\n<\/li>\n<li data-start=\"2033\" data-end=\"2105\">\n<p data-start=\"2035\" data-end=\"2105\"><strong data-start=\"2035\" data-end=\"2048\">Radiador:<\/strong> Componente utilizado para dissipar o calor do \u00f3leo do transformador.<\/p>\n<\/li>\n<li data-start=\"2106\" data-end=\"2190\">\n<p data-start=\"2108\" data-end=\"2190\"><strong data-start=\"2108\" data-end=\"2123\">Resist\u00eancia:<\/strong> Oposi\u00e7\u00e3o ao fluxo de corrente, causando queda de tens\u00e3o e perda de pot\u00eancia.<\/p>\n<\/li>\n<li data-start=\"2191\" data-end=\"2290\">\n<p data-start=\"2193\" data-end=\"2290\"><strong data-start=\"2193\" data-end=\"2214\">Prote\u00e7\u00e3o do rel\u00e9:<\/strong> Sistema utilizado para detetar falhas no transformador e ativar dispositivos de prote\u00e7\u00e3o.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2292\" data-end=\"2301\"><span style=\"font-size: 150%;\"><strong data-start=\"2296\" data-end=\"2301\">S<\/strong><\/span><\/h3>\n<ul data-start=\"2302\" data-end=\"2799\">\n<li data-start=\"2302\" data-end=\"2383\">\n<p data-start=\"2304\" data-end=\"2383\"><strong data-start=\"2304\" data-end=\"2326\">Enrolamento secund\u00e1rio:<\/strong> O enrolamento a partir do qual a energia \u00e9 fornecida \u00e0 carga.<\/p>\n<\/li>\n<li data-start=\"2384\" data-end=\"2465\">\n<p data-start=\"2386\" data-end=\"2465\"><strong data-start=\"2386\" data-end=\"2410\">Transformador elevador:<\/strong> Aumenta a tens\u00e3o do enrolamento prim\u00e1rio para o secund\u00e1rio.<\/p>\n<\/li>\n<li data-start=\"2466\" data-end=\"2549\">\n<p data-start=\"2468\" data-end=\"2549\"><strong data-start=\"2468\" data-end=\"2494\">Transformador abaixador:<\/strong> Diminui a tens\u00e3o do enrolamento prim\u00e1rio para o secund\u00e1rio.<\/p>\n<\/li>\n<li data-start=\"2550\" data-end=\"2630\">\n<p data-start=\"2552\" data-end=\"2630\"><strong data-start=\"2552\" data-end=\"2567\">Perda perdida:<\/strong> Perdas devidas a fugas de fluxo na estrutura ou no dep\u00f3sito do transformador.<\/p>\n<\/li>\n<li data-start=\"2631\" data-end=\"2714\">\n<p data-start=\"2633\" data-end=\"2714\"><strong data-start=\"2633\" data-end=\"2652\">Protetor de sobretens\u00e3o:<\/strong> Dispositivo de prote\u00e7\u00e3o contra sobretens\u00f5es ou descargas atmosf\u00e9ricas.<\/p>\n<\/li>\n<li data-start=\"2715\" data-end=\"2799\">\n<p data-start=\"2717\" data-end=\"2799\"><strong data-start=\"2717\" data-end=\"2735\">A\u00e7o sil\u00edcio:<\/strong> Material magn\u00e9tico utilizado nos n\u00facleos dos transformadores para reduzir as perdas.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2801\" data-end=\"2810\"><span style=\"font-size: 150%;\"><strong data-start=\"2805\" data-end=\"2810\">T<\/strong><\/span><\/h3>\n<ul data-start=\"2811\" data-end=\"3352\">\n<li data-start=\"2811\" data-end=\"2902\">\n<p data-start=\"2813\" data-end=\"2902\"><strong data-start=\"2813\" data-end=\"2829\">Mudan\u00e7a de torneira:<\/strong> Dispositivo para ajustar a tens\u00e3o de sa\u00edda do transformador atrav\u00e9s da altera\u00e7\u00e3o das voltas do enrolamento.<\/p>\n<\/li>\n<li data-start=\"2903\" data-end=\"3002\">\n<p data-start=\"2905\" data-end=\"3002\"><strong data-start=\"2905\" data-end=\"2926\">Aumento da temperatura:<\/strong> Aumento da temperatura durante o funcionamento do transformador acima do n\u00edvel ambiente.<\/p>\n<\/li>\n<li data-start=\"3003\" data-end=\"3102\">\n<p data-start=\"3005\" data-end=\"3102\"><strong data-start=\"3005\" data-end=\"3033\">Transformador trif\u00e1sico:<\/strong> Transformador para sistemas de energia trif\u00e1sicos com tr\u00eas conjuntos de enrolamentos.<\/p>\n<\/li>\n<li data-start=\"3103\" data-end=\"3195\">\n<p data-start=\"3105\" data-end=\"3195\"><strong data-start=\"3105\" data-end=\"3126\">Sobrecarga t\u00e9rmica:<\/strong> Condi\u00e7\u00e3o quando a temperatura excede os limites de seguran\u00e7a devido a sobrecarga.<\/p>\n<\/li>\n<li data-start=\"3196\" data-end=\"3261\">\n<p data-start=\"3198\" data-end=\"3261\"><strong data-start=\"3198\" data-end=\"3214\">R\u00e1cio de rota\u00e7\u00f5es:<\/strong> Rela\u00e7\u00e3o entre as voltas do enrolamento prim\u00e1rio e secund\u00e1rio.<\/p>\n<\/li>\n<li data-start=\"3262\" data-end=\"3352\">\n<p data-start=\"3264\" data-end=\"3352\"><strong data-start=\"3264\" data-end=\"3289\">Transformador Toroidal:<\/strong> Transformador em forma de rosca com reduzida fuga de fluxo magn\u00e9tico.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3354\" data-end=\"3363\"><span style=\"font-size: 150%;\"><strong data-start=\"3358\" data-end=\"3363\">U<\/strong><\/span><\/h3>\n<ul data-start=\"3364\" data-end=\"3939\">\n<li data-start=\"3364\" data-end=\"3474\">\n<p data-start=\"3366\" data-end=\"3474\"><strong data-start=\"3366\" data-end=\"3387\">Certifica\u00e7\u00e3o UL:<\/strong> Certifica\u00e7\u00e3o que indica a conformidade com as normas de seguran\u00e7a do Underwriters Laboratories.<\/p>\n<\/li>\n<li data-start=\"3475\" data-end=\"3572\">\n<p data-start=\"3477\" data-end=\"3572\"><strong data-start=\"3477\" data-end=\"3494\">Subtens\u00e3o:<\/strong> Funcionamento abaixo da tens\u00e3o nominal, o que pode causar inefici\u00eancia ou instabilidade.<\/p>\n<\/li>\n<li data-start=\"3573\" data-end=\"3645\">\n<p data-start=\"3575\" data-end=\"3645\"><strong data-start=\"3575\" data-end=\"3593\">Campo de uniformes:<\/strong> Um campo magn\u00e9tico ou el\u00e9trico uniformemente distribu\u00eddo.<\/p>\n<\/li>\n<li data-start=\"3646\" data-end=\"3743\">\n<p data-start=\"3648\" data-end=\"3743\"><strong data-start=\"3648\" data-end=\"3672\">Transformador de utilidade p\u00fablica:<\/strong> Transformador utilizado pelas empresas de eletricidade para distribuir energia el\u00e9ctrica.<\/p>\n<\/li>\n<li data-start=\"3744\" data-end=\"3835\">\n<p data-start=\"3746\" data-end=\"3835\"><strong data-start=\"3746\" data-end=\"3766\">Carga n\u00e3o equilibrada:<\/strong> Quando as cargas nas tr\u00eas fases de um transformador n\u00e3o s\u00e3o iguais.<\/p>\n<\/li>\n<li data-start=\"3836\" data-end=\"3939\">\n<p data-start=\"3838\" data-end=\"3939\"><strong data-start=\"3838\" data-end=\"3855\">N\u00facleo em forma de U:<\/strong> Forma do n\u00facleo de um transformador concebida para requisitos espec\u00edficos de espa\u00e7o ou desempenho.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3941\" data-end=\"3950\"><span style=\"font-size: 150%;\"><strong data-start=\"3945\" data-end=\"3950\">V<\/strong><\/span><\/h3>\n<ul data-start=\"3951\" data-end=\"4498\">\n<li data-start=\"3951\" data-end=\"4050\">\n<p data-start=\"3953\" data-end=\"4050\"><strong data-start=\"3953\" data-end=\"3970\">Grupo Vetor:<\/strong> Representa\u00e7\u00e3o simb\u00f3lica mostrando a configura\u00e7\u00e3o do enrolamento e a desloca\u00e7\u00e3o de fase.<\/p>\n<\/li>\n<li data-start=\"4051\" data-end=\"4148\">\n<p data-start=\"4053\" data-end=\"4148\"><strong data-start=\"4053\" data-end=\"4076\">Regula\u00e7\u00e3o da tens\u00e3o:<\/strong> A capacidade de manter a tens\u00e3o de sa\u00edda constante apesar da varia\u00e7\u00e3o da carga.<\/p>\n<\/li>\n<li data-start=\"4149\" data-end=\"4244\">\n<p data-start=\"4151\" data-end=\"4244\"><strong data-start=\"4151\" data-end=\"4169\">Secagem a v\u00e1cuo:<\/strong> Processo para remover a humidade do isolamento do transformador durante o fabrico.<\/p>\n<\/li>\n<li data-start=\"4245\" data-end=\"4322\">\n<p data-start=\"4247\" data-end=\"4322\"><strong data-start=\"4247\" data-end=\"4268\">Volt-Ampere (VA):<\/strong> Unidade de pot\u00eancia aparente utilizada nas classifica\u00e7\u00f5es dos transformadores.<\/p>\n<\/li>\n<li data-start=\"4323\" data-end=\"4421\">\n<p data-start=\"4325\" data-end=\"4421\"><strong data-start=\"4325\" data-end=\"4364\">VPI (Impregna\u00e7\u00e3o por press\u00e3o de v\u00e1cuo):<\/strong> M\u00e9todo para melhorar o isolamento de transformadores de tipo seco.<\/p>\n<\/li>\n<li data-start=\"4422\" data-end=\"4498\">\n<p data-start=\"4424\" data-end=\"4498\"><strong data-start=\"4424\" data-end=\"4440\">Tens\u00e3o de alimenta\u00e7\u00e3o:<\/strong> Ponto de liga\u00e7\u00e3o num enrolamento para selecionar a tens\u00e3o de sa\u00edda.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"4500\" data-end=\"4509\"><span style=\"font-size: 150%;\"><strong data-start=\"4504\" data-end=\"4509\">W<\/strong><\/span><\/h3>\n<ul data-start=\"4510\" data-end=\"5041\">\n<li data-start=\"4510\" data-end=\"4581\">\n<p data-start=\"4512\" data-end=\"4581\"><strong data-start=\"4512\" data-end=\"4524\">Enrolamento:<\/strong> Bobina condutora num transformador onde os CEM s\u00e3o induzidos.<\/p>\n<\/li>\n<li data-start=\"4582\" data-end=\"4660\">\n<p data-start=\"4584\" data-end=\"4660\"><strong data-start=\"4584\" data-end=\"4598\">Perda de watts:<\/strong> Pot\u00eancia total perdida sob a forma de calor devido \u00e0 resist\u00eancia e \u00e0s perdas no n\u00facleo.<\/p>\n<\/li>\n<li data-start=\"4661\" data-end=\"4766\">\n<p data-start=\"4663\" data-end=\"4766\"><strong data-start=\"4663\" data-end=\"4689\">Liga\u00e7\u00e3o em estrela (Wye):<\/strong> Liga\u00e7\u00e3o trif\u00e1sica em que cada enrolamento se une a um ponto neutro comum.<\/p>\n<\/li>\n<li data-start=\"4767\" data-end=\"4837\">\n<p data-start=\"4769\" data-end=\"4837\"><strong data-start=\"4769\" data-end=\"4783\">Watt\u00edmetro:<\/strong> Instrumento utilizado para medir a pot\u00eancia real num circuito.<\/p>\n<\/li>\n<li data-start=\"4838\" data-end=\"4939\">\n<p data-start=\"4840\" data-end=\"4939\"><strong data-start=\"4840\" data-end=\"4863\">Resist\u00eancia de enrolamento:<\/strong> A resist\u00eancia dos enrolamentos do transformador afecta a queda de tens\u00e3o e as perdas.<\/p>\n<\/li>\n<li data-start=\"4940\" data-end=\"5041\">\n<p data-start=\"4942\" data-end=\"5041\"><strong data-start=\"4942\" data-end=\"4971\">Transformador \u00e0 prova de intemp\u00e9ries:<\/strong> Concebida para utiliza\u00e7\u00e3o no exterior e protegida dos elementos ambientais.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5043\" data-end=\"5052\"><span style=\"font-size: 150%;\"><strong data-start=\"5047\" data-end=\"5052\">X<\/strong><\/span><\/h3>\n<ul data-start=\"5053\" data-end=\"5524\">\n<li data-start=\"5053\" data-end=\"5129\">\n<p data-start=\"5055\" data-end=\"5129\"><strong data-start=\"5055\" data-end=\"5069\">Rela\u00e7\u00e3o X\/R:<\/strong> R\u00e1cio entre a react\u00e2ncia e a resist\u00eancia, utilizado na an\u00e1lise de falhas.<\/p>\n<\/li>\n<li data-start=\"5130\" data-end=\"5213\">\n<p data-start=\"5132\" data-end=\"5213\"><strong data-start=\"5132\" data-end=\"5154\">Transformador de raios X:<\/strong> Transformador de alta tens\u00e3o utilizado em m\u00e1quinas de raios X m\u00e9dicas.<\/p>\n<\/li>\n<li data-start=\"5214\" data-end=\"5294\">\n<p data-start=\"5216\" data-end=\"5294\"><strong data-start=\"5216\" data-end=\"5234\">Desloca\u00e7\u00e3o em fase X:<\/strong> Desloca\u00e7\u00e3o de fase ajust\u00e1vel para controlar o fluxo de pot\u00eancia em redes.<\/p>\n<\/li>\n<li data-start=\"5295\" data-end=\"5376\">\n<p data-start=\"5297\" data-end=\"5376\"><strong data-start=\"5297\" data-end=\"5321\">Enrolamento ligado em X:<\/strong> Uma configura\u00e7\u00e3o \u00fanica na transmiss\u00e3o de alta tens\u00e3o.<\/p>\n<\/li>\n<li data-start=\"5377\" data-end=\"5455\">\n<p data-start=\"5379\" data-end=\"5455\"><strong data-start=\"5379\" data-end=\"5402\">Classe X Isolamento:<\/strong> Classe de classifica\u00e7\u00e3o de temperatura para materiais de isolamento.<\/p>\n<\/li>\n<li data-start=\"5456\" data-end=\"5524\">\n<p data-start=\"5458\" data-end=\"5524\"><strong data-start=\"5458\" data-end=\"5481\">Alimenta\u00e7\u00e3o de flash de x\u00e9non:<\/strong> Transformador utilizado em sistemas de ilumina\u00e7\u00e3o de x\u00e9non.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5526\" data-end=\"5535\"><span style=\"font-size: 150%;\"><strong data-start=\"5530\" data-end=\"5535\">Y<\/strong><\/span><\/h3>\n<ul data-start=\"5536\" data-end=\"6035\">\n<li data-start=\"5536\" data-end=\"5590\">\n<p data-start=\"5538\" data-end=\"5590\"><strong data-start=\"5538\" data-end=\"5555\">Liga\u00e7\u00e3o em Y:<\/strong> Outro termo para a liga\u00e7\u00e3o Wye.<\/p>\n<\/li>\n<li data-start=\"5591\" data-end=\"5662\">\n<p data-start=\"5593\" data-end=\"5662\"><strong data-start=\"5593\" data-end=\"5602\">Yoke:<\/strong> A parte horizontal superior e inferior do n\u00facleo de um transformador.<\/p>\n<\/li>\n<li data-start=\"5663\" data-end=\"5762\">\n<p data-start=\"5665\" data-end=\"5762\"><strong data-start=\"5665\" data-end=\"5694\">Isoladores \u00e0 base de \u00edtrio:<\/strong> Isoladores de alto desempenho utilizados em projectos avan\u00e7ados de transformadores.<\/p>\n<\/li>\n<li data-start=\"5763\" data-end=\"5861\">\n<p data-start=\"5765\" data-end=\"5861\"><strong data-start=\"5765\" data-end=\"5784\">Resist\u00eancia ao escoamento:<\/strong> A tens\u00e3o m\u00e1xima que um material pode suportar sem deforma\u00e7\u00e3o permanente.<\/p>\n<\/li>\n<li data-start=\"5862\" data-end=\"5951\">\n<p data-start=\"5864\" data-end=\"5951\"><strong data-start=\"5864\" data-end=\"5887\">Transforma\u00e7\u00e3o Y-\u0394:<\/strong> Convers\u00e3o matem\u00e1tica entre as configura\u00e7\u00f5es em estrela e em tri\u00e2ngulo.<\/p>\n<\/li>\n<li data-start=\"5952\" data-end=\"6035\">\n<p data-start=\"5954\" data-end=\"6035\"><strong data-start=\"5954\" data-end=\"5982\">Transformador de controlo de guinada:<\/strong> Utilizado em turbinas e\u00f3licas para controlar a rota\u00e7\u00e3o da nacela.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"6037\" data-end=\"6046\"><span style=\"font-size: 150%;\"><strong data-start=\"6041\" data-end=\"6046\">Z<\/strong><\/span><\/h3>\n<ul data-start=\"6047\" data-end=\"6595\">\n<li data-start=\"6047\" data-end=\"6149\">\n<p data-start=\"6049\" data-end=\"6149\"><strong data-start=\"6049\" data-end=\"6075\">Corrente de sequ\u00eancia zero:<\/strong> Um componente de corrente em sistemas desequilibrados que afecta o neutro e a terra.<\/p>\n<\/li>\n<li data-start=\"6150\" data-end=\"6242\">\n<p data-start=\"6152\" data-end=\"6242\"><strong data-start=\"6152\" data-end=\"6175\">Transformador em ziguezague:<\/strong> Fornece liga\u00e7\u00e3o \u00e0 terra e reduz os harm\u00f3nicos em sistemas trif\u00e1sicos.<\/p>\n<\/li>\n<li data-start=\"6243\" data-end=\"6339\">\n<p data-start=\"6245\" data-end=\"6339\"><strong data-start=\"6245\" data-end=\"6269\">Para-raios de \u00f3xido de zinco:<\/strong> Para-raios que utiliza \u00f3xido de zinco como material de resist\u00eancia n\u00e3o linear.<\/p>\n<\/li>\n<li data-start=\"6340\" data-end=\"6411\">\n<p data-start=\"6342\" data-end=\"6411\"><strong data-start=\"6342\" data-end=\"6360\">Aquecimento por zonas:<\/strong> Aquecimento desigual em diferentes regi\u00f5es do transformador.<\/p>\n<\/li>\n<li data-start=\"6412\" data-end=\"6502\">\n<p data-start=\"6414\" data-end=\"6502\"><strong data-start=\"6414\" data-end=\"6432\">Design Z-Core:<\/strong> Uma configura\u00e7\u00e3o de n\u00facleo para layouts de transformadores compactos e eficientes.<\/p>\n<\/li>\n<li data-start=\"6503\" data-end=\"6595\">\n<p data-start=\"6505\" data-end=\"6595\"><strong data-start=\"6505\" data-end=\"6526\">Prote\u00e7\u00e3o Zener:<\/strong> Prote\u00e7\u00e3o contra sobretens\u00f5es utilizando d\u00edodos Zener em transformadores de controlo.<\/p>\n<\/li>\n<\/ul>\n\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f280-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"280\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/pt\/wp-json\/wp\/v2\/pages\/2126#wpcf7-f280-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Formul\u00e1rio de contacto\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/pt\/wp-json\/wp\/v2\/pages\/2126#wpcf7-f280-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"280\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.1\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f280-o1\" \/><input 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