Webinar recording
Horizontal and vertical motors have uniquely different requirements for endplay, while sleeve bearing machines bring their own challenges. This presentation examines those differences.
Article
The information in this article provides comparisons of key characteristics of IEC and NEMA motors to aid in evaluating the potential simplicity or complexity of the IEC to NEMA design conversion.
Article
En este artículo, se profundizará en los motores de CA responsables de las funciones de inclinación y elevación de las apiladoras de troncos. Estos motores poseen características distintivas, incluido un rotor de alta resistencia.
Article
La información de este artículo proporciona comparaciones de las características clave de los motores IEC y NEMA para ayudar a evaluar la posible simplicidad o complejidad de la conversión de diseño IEC a NEMA.
Video
This video shows the proper way to lubricate the deep-groove, open ball bearing before assembling a horizontal induction motor.
Video
This video shows the proper procedure for seating carbon brushes in a DC machine.
Video
This video will walk you through how to check the relative polarity of DC machine interpoles and the armature and correct it if necessary using a simple interpole polarity test.
Video
This video demonstrates the correct way to use an induction bearing heater to install an interference fit ball bearing on a machine shaft.
Article
When working with DC machines, it’s not uncommon to find a customer who runs different products requiring a range of armature current. Unlike other conductors, where lower current is a good thing, carbon brushes are designed for a narrow range of current density. A unique aspect of carbon brush life is that brushes operating at a much lower current density than they are designed for do not last nearly as long as expected.
Article
Being proactive on behalf of the repair industry, EASA created the best practice repair standard for the industry. This article looks back on this history of this important document.
Article
Durante los 90, las normas gubernamentales para la eficiencia de los motores eléctricos fabricados generaron preocupaciones de que pudieran surgir regulaciones o normas para la reparación de motores eléctricos. Como representante de la industria de reparación de motores eléctricos, EASA respondió buscando el reconocimiento de su Práctica Recomendada para la Reparación como Norma Nacional Americana. Ser proactivo en la obtención de dicho reconocimiento significaría que, en nombre de la industria de la reparación, EASA crearía la norma de las mejores prácticas de reparación para la industria.
Article
Al trabajar con máquinas de CC, no es raro encontrar un cliente que fabrica diferentes productos que requieren un rango de corriente de armadura. A diferencia de otros conductores, donde una corriente más baja es algo bueno, las escobillas de carbón están diseñadas con poco margen de densidad de corriente.
Article
The phase balance test is a simple yet effective method for diagnosing some problems with existing windings and for inspecting new windings before resin treatment. Including thermography enhances diagnostic capabilities, making it a valuable addition to the testing process.
Article
La prueba de equilibrio de fases es un método simple y efectivo para diagnosticar algunos problemas en los devanados existentes y para inspeccionar devanados nuevos antes del tratamiento final. Incluir termografía mejora el diagnóstico, lo que es una adición valiosa para el proceso de prueba.
Article
In addition to seal oil, some submersibles have an oil filled stator cavity. The oil in the stator cavity very efficiently transfers heat from the stator winding and core, and especially from the rotor, to the pump casing where convection carries it to the pumpage in which the pump is submerged. While the specifications for seal oil are fairly flexible, stator cavity oil has more constraints.
The Power of Data: Using Step Counters to Optimize Layout
Article
Have you ever thought about using a step counter on your employees in a test setting? This idea can provide valuable data to help you understand how much movement your workers must perform daily due to the current workshop layout. By analyzing this data, you can identify inefficiencies in the layout that may not be immediately obvious.
Article
Además del aceite de sellado, algunas bombas sumergibles tienen una cavidad del estator llena de aceite. Este aceite transfiere de manera muy eficiente el calor desde el devanado y el núcleo del estator, y especialmente desde el rotor, hasta la carcasa de la bomba, donde la convección lo lleva al líquido de bombeo en el que está sumergida. Si bien las especificaciones para el aceite de sellado son bastante flexibles, el aceite de la cavidad del estator tiene más restricciones.
FREE for Members of EASA
Webinar recording
This presentation reviews procedures that explain how to identify unmarked leads of three-phase motors with one or two windings.
Article
This article looks at the installation and removal of quick detachable (QD) and taper lock pulleys.
Article
Pumps, compressors, fans and other types of mechanical movement are crucial to our industrial activities. Consequently, the health of these motors directly influences the operational reliability and longevity of the broader industrial ecosystem. Acknowledging this underscores the necessity for performing online health assessments of electric motors.
Article
En este artículo discutiremos dos tipos de poleas: poleas de desmontaje rápido (QD) y poleas con bloqueo cónico y se proporcionarán instrucciones para instalar y desmontar ambos tipos.
FREE for Members of EASA
Webinar recording
This presentation focusses on critical close fit tolerances and certain surface finish specifications.
Article
Hay una industria que ha estado reciclando silenciosamente desde antes del comienzo del siglo pasado. Así es: Más de 100 años de reciclaje. ¿De qué industria se trata? Es nuestra industria: La reparación de máquinas eléctricas.
Article
There is one industry that has been quietly recycling since before the start of the previous century. That’s right – over 100 years of recycling. What industry is that? It’s our industry – electrical equipment repair.
Article
The Electrical Apparatus Service Association (EASA) stands as the ultimate team, empowering its members with extraordinary abilities. Through shared best practices, high standards and mutual support, EASA’s international community transforms its members into industry superheroes, ready to tackle any challenge.
FREE for Members of EASA
Webinar recording
When a core loss test reveals localized hot spots, or visual inspection identifies physical damage, the ability to repair the damage in a cost-effective manner means the difference between repair or replacement.
Article
EASA will soon be releasing a new Motor Stats feature for both the AC Motor Verification & Redesign and Motor Rewind Data software to assist with determining if the data is reasonable for the machine’s nameplate ratings and core size.
Article
When handling motors, lifting devices are often needed, whether they be cranes, forklifts or otherwise. Given the risks inherent to lifting, EASA members must exercise caution and ensure our teams are well versed in proper rigging techniques.
Article
Al manipular motores, a menudo se necesitan dispositivos de izaje, ya sean grúas, montacargas o de otro tipo. Dados los riesgos inherentes al izaje, los miembros de EASA debemos actuar con precaución y asegurarnos que nuestros empleados conozcan bien las técnicas de manipulación adecuadas.