{"id":6084,"date":"2026-03-20T03:10:10","date_gmt":"2026-03-20T03:10:10","guid":{"rendered":"https:\/\/www.ketetransformer.com\/?p=6084"},"modified":"2026-03-20T03:10:12","modified_gmt":"2026-03-20T03:10:12","slug":"difference-between-scb-and-sc-series-dry-type-transformers","status":"publish","type":"post","link":"https:\/\/www.ketetransformer.com\/es\/difference-between-scb-and-sc-series-dry-type-transformers\/","title":{"rendered":"Diferencias entre los transformadores de tipo seco de las series SCB y SC"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Los transformadores de las series SCB y SC son ambos <strong>transformadores trif\u00e1sicos de tipo seco con resina moldeada<\/strong>, muy utilizado en sistemas de distribuci\u00f3n el\u00e9ctrica, instalaciones industriales y edificios comerciales.<br>Aunque pertenecen a la misma categor\u00eda, existen diferencias significativas en <strong>estructura del devanado, aumento de temperatura, comportamiento en caso de p\u00e9rdidas, resistencia de aislamiento y resistencia a los cortocircuitos<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En este art\u00edculo se explican las principales diferencias entre <strong>Transformadores SCB y transformadores SC<\/strong> en detalle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Diferencia en la estructura del bobinado<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La principal diferencia entre los transformadores de las series SCB y SC radica en el <strong>dise\u00f1o de bobinados de baja tensi\u00f3n<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Serie SCB \u2013 Bobinado de l\u00e1mina de cobre<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Los transformadores SCB se utilizan <strong>bobinado de l\u00e1mina de cobre<\/strong> para la bobina de baja tensi\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Caracter\u00edsticas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bobinado de l\u00e1mina de cobre de una sola capa<\/li>\n\n\n\n<li>Resina epoxi con agente de curado que se utiliza entre capas<\/li>\n\n\n\n<li>Cobre sin ox\u00edgeno de alta pureza (\u226599,991 TP6T)<\/li>\n\n\n\n<li>El grosor de la l\u00e1mina de cobre suele ser inferior a 0,1 mm<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ventajas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mejor disipaci\u00f3n del calor<\/li>\n\n\n\n<li>Menor p\u00e9rdida<\/li>\n\n\n\n<li>Mayor resistencia mec\u00e1nica<\/li>\n\n\n\n<li>Mayor resistencia a los cortocircuitos<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Serie SC \u2013 Bobinas de alambre enrollado<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Los transformadores SC se utilizan <strong>bobinas cil\u00edndricas de alambre enrollado<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Caracter\u00edsticas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Estructura de bobinado cil\u00edndrica<\/li>\n\n\n\n<li>Varios hilos planos de cobre con aislamiento de fibra de vidrio<\/li>\n\n\n\n<li>Cobre electrol\u00edtico est\u00e1ndar (~99,961 TP6T)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En comparaci\u00f3n con SCB:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u00e1s capas de bobinado<\/li>\n\n\n\n<li>Mayor disipaci\u00f3n del calor<\/li>\n\n\n\n<li>Mayor p\u00e9rdida por cobre<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. Diferencia en el aumento de temperatura<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El devanado de baja tensi\u00f3n se encuentra cerca del n\u00facleo, por lo que la capacidad de refrigeraci\u00f3n es fundamental.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ventajas de los transformadores SCB:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>El bobinado en l\u00e1mina permite obtener una superficie de refrigeraci\u00f3n mayor<\/li>\n\n\n\n<li>Mejor circulaci\u00f3n del aire<\/li>\n\n\n\n<li>Mejor dise\u00f1o de la ventilaci\u00f3n<\/li>\n\n\n\n<li>Menor aumento de la temperatura<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Resultado t\u00edpico:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El aumento de temperatura del SCB es de aproximadamente <strong>entre 5 y 7 K menos<\/strong> que SC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ventajas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mayor capacidad de sobrecarga<\/li>\n\n\n\n<li>Mayor vida \u00fatil<\/li>\n\n\n\n<li>Mayor estabilidad t\u00e9rmica<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3. Diferencia en la p\u00e9rdida de carga<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los transformadores SCB se utilizan <strong>l\u00e1mina de cobre sin ox\u00edgeno<\/strong>, que dice lo siguiente:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mayor conductividad<\/li>\n\n\n\n<li>Menos impurezas<\/li>\n\n\n\n<li>Menor resistencia<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Resultado:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Menor p\u00e9rdida de cobre<\/li>\n\n\n\n<li>Menor p\u00e9rdida adicional provocada por el efecto piel<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Para el mismo nivel de potencia y tensi\u00f3n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La p\u00e9rdida por carga del SCB suele ser <strong>aproximadamente 5% menos<\/strong> que SC.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. Diferencias en el rendimiento del aislamiento<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El bobinado de l\u00e1minas SCB presenta las siguientes caracter\u00edsticas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Peque\u00f1o gradiente de tensi\u00f3n entre capas<\/li>\n\n\n\n<li>Mayor capacitancia entre espiras<\/li>\n\n\n\n<li>Mayor rigidez diel\u00e9ctrica<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ventajas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Un aislamiento m\u00e1s eficaz<\/li>\n\n\n\n<li>Mayor resistencia a los impulsos de rayo<\/li>\n\n\n\n<li>Mayor capacidad de resistencia a sobretensiones<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Esto hace que los transformadores SCB sean m\u00e1s adecuados para:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Edificios de gran altura<\/li>\n\n\n\n<li>Centros de datos<\/li>\n\n\n\n<li>Hospitales<\/li>\n\n\n\n<li>Sistemas de alimentaci\u00f3n el\u00e9ctrica cr\u00edticos<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">5. Capacidad de resistencia a cortocircuitos<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los transformadores SCB ofrecen un mejor rendimiento en situaciones de cortocircuito repentino.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ventajas de SCB<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bobinado de l\u00e1mina con una gran \u00e1rea de corriente<\/li>\n\n\n\n<li>La misma altura para los devanados de baja tensi\u00f3n y alta tensi\u00f3n<\/li>\n\n\n\n<li>Menor fuerza axial durante un cortocircuito<\/li>\n\n\n\n<li>Gran resistencia mec\u00e1nica<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Desventajas de SC<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>El bobinado multifilar genera un campo de fuga m\u00e1s amplio<\/li>\n\n\n\n<li>Fuerte fuerza axial en los extremos del bobinado<\/li>\n\n\n\n<li>Mayor riesgo de deformaci\u00f3n en caso de cortocircuito<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Resultado:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los transformadores SCB cuentan con:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mayor resistencia a los cortocircuitos<\/li>\n\n\n\n<li>Mayor fiabilidad<\/li>\n\n\n\n<li>Mayor vida \u00fatil<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">6. Dimensiones, peso y capacidad<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En comparaci\u00f3n con SC:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los transformadores SCB suelen tener:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tama\u00f1o m\u00e1s peque\u00f1o<\/li>\n\n\n\n<li>Menor peso<\/li>\n\n\n\n<li>Mayor capacidad por volumen<\/li>\n\n\n\n<li>Mayor capacidad de sobrecarga<\/li>\n\n\n\n<li>Mayor nivel de aislamiento<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En un principio, el SCB se utilizaba principalmente para transformadores especiales.<br>(como los transformadores de excitaci\u00f3n),<br>pero hoy en d\u00eda se utiliza cada vez m\u00e1s para <strong>transformadores de distribuci\u00f3n est\u00e1ndar<\/strong> y se considera la tendencia de desarrollo futura.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. Resumen: transformador SC frente a SCB<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Art\u00edculo<\/th><th>Transformador SC<\/th><th>Transformador SCB<\/th><\/tr><\/thead><tbody><tr><td>Tipo de bobinado<\/td><td>Bobinado de alambre<\/td><td>Bobinado de l\u00e1mina de cobre<\/td><\/tr><tr><td>Pureza del cobre<\/td><td>~99.96%<\/td><td>\u226599,991 TP6T<\/td><\/tr><tr><td>Aumento de la temperatura<\/td><td>M\u00e1s alto<\/td><td>Inferior<\/td><\/tr><tr><td>P\u00e9rdida por carga<\/td><td>M\u00e1s alto<\/td><td>Inferior<\/td><\/tr><tr><td>Resistencia del aislamiento<\/td><td>Normal<\/td><td>M\u00e1s alto<\/td><\/tr><tr><td>Resistencia a los cortocircuitos<\/td><td>Medio<\/td><td>Fuerte<\/td><\/tr><tr><td>Tama\u00f1o \/ peso<\/td><td>M\u00e1s grande<\/td><td>M\u00e1s peque\u00f1o<\/td><\/tr><tr><td>Capacidad de sobrecarga<\/td><td>Normal<\/td><td>Mejor<\/td><\/tr><tr><td>Nivel de aplicaci\u00f3n<\/td><td>Est\u00e1ndar<\/td><td>De alto rendimiento<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusi\u00f3n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tanto la serie SC como la SCB son transformadores de tipo seco fiables, pero:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SC \u2192 aplicaciones est\u00e1ndar<\/li>\n\n\n\n<li>SCB \u2192 aplicaciones de alto rendimiento<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Gracias a una mejor refrigeraci\u00f3n, menores p\u00e9rdidas y una mayor fiabilidad,<br><strong>Los transformadores de tipo seco con bobinado laminado de SCB se est\u00e1n convirtiendo en el dise\u00f1o preferido en los sistemas modernos de distribuci\u00f3n el\u00e9ctrica.<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>SCB and SC series transformers are both three-phase cast resin dry-type transformers, widely used in power distribution systems, industrial plants, and commercial buildings.Although they belong to the same category, there are significant differences in winding structure, temperature rise, loss performance, insulation strength, and short-circuit resistance. This article explains the key differences between SCB transformers and 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