{"id":76,"date":"2026-10-11T16:43:20","date_gmt":"2026-10-11T19:43:20","guid":{"rendered":"https:\/\/electrotecniaml.com.ar\/blog\/?p=76"},"modified":"2026-10-11T17:13:01","modified_gmt":"2026-10-11T20:13:01","slug":"termografia-infrarroja-electrica-que-detecta","status":"publish","type":"post","link":"https:\/\/electrotecniaml.com.ar\/blog\/termografia-infrarroja-electrica-que-detecta\/","title":{"rendered":"Termograf\u00eda infrarroja el\u00e9ctrica: qu\u00e9 detecta y por qu\u00e9 conviene hacerla a tiempo"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">En una f\u00e1brica de pl\u00e1sticos de CABA, una inspecci\u00f3n termogr\u00e1fica de rutina encontr\u00f3 dos <br>fallas que, a simple vista, parec\u00edan instalaciones normales. El contactor principal del tablero de<br>transferencia ten\u00eda un borne flojo. Sin termograf\u00eda, esa falla segu\u00eda invisible hasta el d\u00eda que<br>cortara la luz en toda la planta.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 es la termograf\u00eda infrarroja el\u00e9ctrica?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La termograf\u00eda infrarroja es una t\u00e9cnica de inspecci\u00f3n no invasiva que mide la temperatura<br>superficial de los componentes el\u00e9ctricos sin necesidad de apagar la instalaci\u00f3n ni tocar ning\u00fan<br>cable. La c\u00e1mara detecta la radiaci\u00f3n infrarroja que emite cualquier cuerpo con temperatura y la<br>convierte en im\u00e1genes donde el calor anormal aparece claramente diferenciado.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En instalaciones el\u00e9ctricas, el calor anormal es el primer s\u00edntoma de casi todas las fallas antes de<br>que se conviertan en un corte, un incendio o un equipo quemado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 fallas detecta la c\u00e1mara termogr\u00e1fica?<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La causa m\u00e1s frecuente en instalaciones industriales y comerciales es el borne flojo: una conexi\u00f3n<br>que no hace contacto perfecto genera resistencia el\u00e9ctrica adicional y, con ella, calor. A mayor<br>corriente circulando por esa conexi\u00f3n, mayor calor. La c\u00e1mara lo detecta incluso cuando ladiferencia de temperatura todav\u00eda es de pocos grados.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br>Otras fallas habituales que aparecen en una inspecci\u00f3n termogr\u00e1fica:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Terminales de cobre mal indentados.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cuando el terminal de cobre esta\u00f1ado se coloca con la herramienta incorrecta o sin aplicar la<br>fuerza adecuada, queda un microhueco entre el conductor y el terminal. Ese hueco genera calor<br>bajo carga. La falla no es visible desde afuera porque el terminal parece bien colocado.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Desequilibrios de fase.<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En tableros trif\u00e1sicos, una fase con mayor carga que las otras genera un punto caliente f\u00e1cilmente<br>identificable en la imagen t\u00e9rmica.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Disyuntores y contactores deteriorados<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Los componentes que est\u00e1n llegando al final de su vida \u00fatil muestran temperaturas superiores a las<br>normales incluso cuando todav\u00eda funcionan.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Empalmes defectuosos.<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tanto en borneras como en conexiones directas, los empalmes que perdieron continuidad el\u00e9ctrica<br>se calientan bajo carga.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">El caso real: f\u00e1brica de pl\u00e1sticos en CABA<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Durante una inspecci\u00f3n de mantenimiento preventivo anual, la c\u00e1mara detect\u00f3 dos puntos cr\u00edticos<br>en la misma visita.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hallazgo 1 \u2014 Contactor del tablero de transferencia.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">El contactor principal la l\u00ednea presentaba temperatura elevada en uno de sus bornes. Este<br>equipo controla la transferencia de energ\u00eda de toda la planta: una falla en ese punto habr\u00eda<br>significado un corte de luz general sin causa aparente, con todo lo que implica detener una l\u00ednea de<br>producci\u00f3n de forma no planificada.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hallazgo 2 \u2014 Interruptor principal de m\u00e1quina.<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"240\" src=\"https:\/\/electrotecniaml.com.ar\/blog\/wp-content\/uploads\/2026\/10\/FLIR0020.jpg\" alt=\"Inspecci\u00f3n termogr\u00e1fica de interruptor principal de m\u00e1quina industrial con borne flojo en CABA\" class=\"wp-image-78\" srcset=\"https:\/\/electrotecniaml.com.ar\/blog\/wp-content\/uploads\/2026\/10\/FLIR0020.jpg 320w, https:\/\/electrotecniaml.com.ar\/blog\/wp-content\/uploads\/2026\/10\/FLIR0020-300x225.jpg 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">El interruptor general de una de las m\u00e1quinas mostraba el mismo problema: borne flojo con<br>temperatura anormal. La consecuencia no era solo la parada de esa m\u00e1quina en el momento<br>menos esperado, sino la posibilidad de que el interruptor se quemara. Reemplazar un interruptor de<br>potencia implica conseguirlo \u2014lo que puede tomar d\u00edas\u2014, perder la producci\u00f3n durante ese<br>per\u00edodo, y el costo del equipo y la mano de obra del cambio.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ambas fallas se resolvieron con un apriete y, en el caso del terminal mal indentado, con el<br>reindentado correcto. El costo de la correcci\u00f3n fue m\u00ednimo. El de no detectarlas, considerablemente<br>mayor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfC\u00f3mo se realiza la inspecci\u00f3n?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La inspecci\u00f3n se hace <strong>con la instalaci\u00f3n en funcionamiento y bajo carga normal<\/strong>. No requiere<br>cortes ni intervenci\u00f3n sobre los equipos. El t\u00e9cnico recorre el tablero o instalaci\u00f3n con la c\u00e1mara y<br>registra las im\u00e1genes de cada componente relevante.<br>Para que los resultados sean v\u00e1lidos, la instalaci\u00f3n debe estar operando con al menos el 40% de<br>su carga habitual al momento de la visita. Si la planta trabaja en horario reducido, conviene<br>coordinar la visita en un momento de operaci\u00f3n normal.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Si quer\u00e9s saber si tu instalaci\u00f3n requiere una inspecci\u00f3n termogr\u00e1fica o ten\u00e9s dudas sobre la<br>frecuencia recomendada para tu caso, pod\u00e9s consultarnos sin compromiso<a href=\"http:\/\/electrotecniaml.com.ar\/servicios\/termografia-infraroja\/\"> <strong>haciendo clic aqui<\/strong>.<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>En una f\u00e1brica de pl\u00e1sticos de CABA, una inspecci\u00f3n termogr\u00e1fica de rutina encontr\u00f3 dos fallas que, a simple vista, parec\u00edan instalaciones normales. El contactor principal del tablero detransferencia ten\u00eda un borne flojo. Sin termograf\u00eda, esa falla segu\u00eda invisible hasta el d\u00eda quecortara la luz en toda la planta. \u00bfQu\u00e9 es la termograf\u00eda infrarroja el\u00e9ctrica? La [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":77,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[45,46,33],"class_list":["post-76","post","type-post","status-publish","format-standard","has-post-thumbnail","category-general","tag-mantenimiento-preventivo","tag-seguridad-electrica","tag-termografia-infrarroja","h-entry","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"Descubr\u00ed qu\u00e9 fallas detecta la termograf\u00eda infrarroja el\u00e9ctrica antes de que causen un incendio o una parada de producci\u00f3n. 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