Equipping a pump test facility for variable speed operation can provide greater flexibility and expand opportunities to evaluate pump performance.

Emplear velocidad variable durante las pruebas puede brindar mayor flexibilidad y ampliar las oportunidades para evaluar el rendimiento de las bombas.

While highly effective for control, pulse width modulation introduces high-frequency transients that can compromise motor reliability if left unchecked.

A tilted or improperly sized oil standpipe can allow oil to migrate upward along the pipe’s wall when the motor is in operation, leading to leakage, loss of lubrication and potential bearing damage. This issue can be overlooked during assembly or inspection, but a few simple checks can prevent costly problems. 

A thoughtful succession plan—such as hiring a new manager one year before the retirement of the veteran employee—can turn the process of leadership transition into a positive, future-focused evolution.

Si bien es muy eficaz para el control, la PWM introduce transitorios de alta frecuencia que, si no se controlan, pueden comprometer la confiabilidad del motor.

This presentation provides a practical overview of applying both NFPA 70E (electrical safety) and 70B (electrical maintenance) standards to field and shop operations.

Often when we are dealing with three-phase squirrel cage motors we ask ourselves “Is there a standard or a rule of thumb for this motor characteristic?” The 10 characteristics that follow apply to conditions associated with motor starting as well as steady state operation. Examples are provided for each of the characteristics.

We all need friends, right? Isn’t the world a better place when you have someone to share it with? Electric motor shop leaders are no different. Peer groups have long been known as a means by which to advance collective goals and performance. EASA’s Roving Chief Executive (RCE) groups are exactly that - tailored to the executive, owner or general manager of electromechanical repair facilities.

A menudo, cuando trabajamos con motores trifásicos jaula de ardilla, nos preguntamos: "¿Existe una norma o regla general para esta característica del motor?". Las siguientes 10 características aplican tanto al arranque del motor como al funcionamiento en estado estacionario.

This presentation covers induction motor basics for squirrel-cage and wound rotor motors.

There is now a much-needed DC repair standard, created through the participation of EASA members and industry motor users.

Existe ahora una norma para las reparaciones de CC muy necesaria, creada gracias a la participación de miembros de EASA y usuarios de motores de la industria.

When repairing electrical apparatus of any type, a common task is to ensure that machined fits are within acceptable limits of Geometric Dimensioning and Tolerancing (GD&T). The complexity of the task, of course, adds time, and time is never in surplus at a motor service center. Skipping these GD&T checks to save time can lead to mistakes and failures, with costs ranging from a few days of additional work to complete motor replacement and possibly lost production time for both the customer and the service center.

Al reparar aparatos eléctricos de cualquier tipo, una tarea común consiste en asegurar que los ajustes mecanizados se encuentren dentro de los límites aceptables del Dimensionamiento y Tolerancia Geométrica (GD&T).  La complejidad de la tarea, por supuesto, implica tiempo adicional, y el tiempo nunca sobra en un taller mecánico. Omitir estas comprobaciones GD&T para ahorrar tiempo puede provocar errores y fallos, con costos que van desde unos pocos días adicionales de trabajo hasta completar el reemplazo del motor y la posible pérdida de tiempo de producción tanto para el cliente como para el taller.

This recording provides an overview of common different thrust bearing arrangements, with end play guidance tips for each.

Concentric to lap winding conversions are common practice in many EASA service centers. For most stators, this change is feasible and can be made with little difficulty. In some cases, however, it can be quite challenging and result in undesired outcomes due to reduction in copper or insulation.

Las conversiones de devanados concéntricos a imbricados son una práctica común en muchos centros de servicio de EASA y en la mayoría de los estatores, este cambio es factible y se puede realizar sin dificultad. Sin embargo, en algunos casos, puede resultar muy complicado y generar resultados no deseados debido a la reducción del cobre o la pared de aislamiento.

Effective industrial marketing isn’t about listing services—it’s about solving problems. This brief article explores how shifting your message from offerings to outcomes can better connect with customers and position your company as a true partner in reliability.

Wireless vibration monitoring enables proactive maintenance by providing real-time diagnostics, reducing downtime, and improving asset reliability. With evolving technology and lower costs, service providers can enhance offerings, strengthen customer relationships, and gain a competitive edge through predictive insights and smarter asset management strategies.

La monitorización inalámbrica de vibraciones permite un mantenimiento proactivo al proporcionar diagnósticos en tiempo real, reducir el tiempo de inactividad y mejorar la fiabilidad de los activos. Gracias a la evolución de la tecnología y la reducción de costes, los proveedores de servicios pueden optimizar su oferta, fortalecer las relaciones con los clientes y obtener una ventaja competitiva mediante información predictiva y estrategias de gestión de activos más inteligentes.

Revisit EASA's 2025 Convention & Solutions Expo by buying access to recordings of the general sessions and education events streamed from EASA's website! These recordings provide just over 32 hours of training. Downloadable PDFs of slides and technical papers are included!

There are various applications for vertical motors, but most of them are mounted on vertical turbine pumps (VTPs). Vertical motors may be hollow shaft or solid shaft; the hollow shaft motors are used exclusively on VTPs and vibration is a common problem with these installations. The focus of this article will be on imbalance and 1x RPM vibration.

Los motores verticales son un elemento común en la mayoría de los centros de servicio adscritos a EASA y existen diversas aplicaciones para ellos, sin embargo la mayoría de ellos se montan en bombas de turbina vertical (VTP). La vibración es un problema común. Este artículo se centrará en el desbalanceo y la vibración a 1x RPM.

For service professionals working with large electric motors and generators, machines with voltage ratings 5 kV and higher can be vulnerable to invisible threats of partial discharge (PD). Corona and PD activity have long been a challenge to detect before failure occurs. Traditionally, detecting these issues required indirect methods like radio interference voltage (RIV) testing, ultrasonic detection or offline insulation tests. But recent advances in partial discharge imaging—sometimes called corona cameras—are giving engineers and technicians a powerful new tool: the ability to see electrical discharge activity directly and in real time. 

As a small business owner employing skilled trade workers who are aging out of the workforce, sustainability is not just about the natural or political environment outside of our walls; it is increasingly becoming challenging in terms of sustaining the capabilities that our customers have come to expect from us.

As our company has grown, we have had to learn to trust others to get things done in a way that is consistent with how you would want them done. Here is how we chose to attack the trust issue and some of the lessons learned along the way.

Para los profesionales que trabajan con grandes motores y generadores eléctricos, las máquinas con tensiones nominales de 5 kV o superiores pueden ser vulnerables a amenazas invisibles de descargas parciales (DP). Detectar la actividad corona y las DP antes de que se produzca un fallo ha sido un desafío durante mucho tiempo. Tradicionalmente, detectar estos problemas requería métodos indirectos como pruebas de voltaje de radio interferencia (RIV), detección ultrasónica o pruebas de aislamiento a máquina parada. Sin embargo, los recientes avances en imágenes de descargas parciales, a veces llamadas cámaras corona, brindan a ingenieros y técnicos una nueva y poderosa herramienta: la capacidad de ver la actividad de descargas eléctricas directamente y en tiempo real.

The 2024 NEMA MG 00001 standard introduces key updates, including new Design BE and CE motors with defined locked-rotor current limits, Class N insulation for high-temperature use, and revised stall time requirements. It adds Super Premium efficiency levels aligned with IEC IE4, adopts IEC voltage/frequency variation guidelines, and expands duty ratings for variable load/speed motors.

La norma NEMA MG 00001 2024 introduce actualizaciones clave, incluyendo nuevos motores de Diseño BE y CE con límites de corriente de rotor bloqueado definidos, aislamiento Clase N para uso a alta temperatura y requisitos revisados ​​de tiempo de pérdida. Añade niveles de eficiencia Super Premium alineados con IEC IE4, adopta las directrices IEC sobre variación de voltaje/frecuencia y amplía las capacidades de servicio para motores de carga/velocidad variable.