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Articles in Industry Publications

Addressing Vertical Motor Balance Issues

  • July 2025
  • Number of views: 385
Article

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.

Corrigiendo Problemas de Balanceo en Motores Verticales

  • July 2025
  • Number of views: 257
Article

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.

Seeing the Invisible: Partial Discharge Imaging for Large Motors and Generators

  • July 2025
  • Number of views: 258
Article

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. 

Selling the Idea of Business Sustainability to Your Team

  • July 2025
  • Number of views: 259
Article

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.

Take the Time to Establish Core Values and Specific Company Goals

  • July 2025
  • Number of views: 217
Article

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.

Viendo lo Invisible: Imágenes de Descargas Parciales en Motores y Generadores Grandes

  • July 2025
  • Number of views: 94
Article

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.

What’s New in NEMA MG 00001-2024 Besides the Title

  • June 2025
  • Number of views: 943
Article

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.

Novedades en la NEMA MG 00001-2024 Además del Título

  • June 2025
  • Number of views: 550
Article

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.

Managing in a Changing and Dynamic Environment

  • June 2025
  • Number of views: 508
Article

Managing through this polarizing political climate doesn’t mean that you must choose sides, but we do have to motor on. I have found three tips that help me in my business life.

Documenting Motor Upcycling: A Value Proposition for Sustainability-Conscious Customers

  • June 2025
  • Number of views: 753
Article

This article highlights how motor repair service centers can support sustainability goals by documenting carbon offsets from motor upcycling. Rewinding motors typically reuses or recycles over 90% of materials, significantly reducing Scope 3 emissions. By leveraging EPA and transportation emission data, centers can provide science-based reports to clients aiming to meet environmental targets. This approach positions service centers as valuable partners in the circular economy and appeals to sustainability-conscious customers.

Skilled Workers Remain Irreplaceable in a Robotics Era

  • June 2025
  • Number of views: 610
Article

While robotic systems are advancing rapidly, their ability to replicate the complex, highly dexterous tasks performed by skilled craftworkers like motor winders, manual machinists and mechanics, especially in bespoke electric motor repair, is still significantly limited. Expert human judgment, adaptability and fine motor skills are not easily replicated by robots today, particularly in nuanced troubleshooting, diagnostics and precise manual repairs.

Documentando el reciclaje de motores: Una propuesta de valor para clientes preocupados por la sostenibilidad

  • June 2025
  • Number of views: 259
Article

Este artículo destaca cómo los centros de servicio de reparación de motores pueden apoyar los objetivos de sostenibilidad mediante la documentación de las compensaciones de carbono del reciclaje de motores. El rebobinado de motores suele reutilizar o reciclar más del 90 % de los materiales, lo que reduce significativamente las emisiones de Alcance 3. Al aprovechar los datos de emisiones de la EPA y del transporte, los centros pueden proporcionar informes con base científica a los clientes que buscan cumplir los objetivos ambientales. Este enfoque posiciona a los centros de servicio como socios valiosos en la economía circular y atrae a clientes conscientes de la sostenibilidad.

Pump Impeller Balancing

  • May 2025
  • Number of views: 1363
FREE for Members of EASA
Webinar recording

The impeller is the primary mass component on most pump rotors. Impeller balancing is an important component of pump repair. Proper balancing procedures will ensure the repaired pump will operate with a minimum of vibration.

Performing a Single-Phase Rotor Test on an Assembled Three-Phase Induction Motor

  • May 2025
  • Number of views: 1513
Video

The video provides a comprehensive guide on performing a single-phase rotor test on a three-phase squirrel cage motor to check for open rotor bars.

Rewind Tips For 2300-Volt, Random-Wound Motors

  • May 2025
  • Number of views: 1046
Article

From the manufacturer’s perspective, a random-wound, 2300-volt motor represents a substantial reduction in manufacturing cost. For the service center, the challenge is to successfully rewind them while providing a reliable repair. Here are some techniques which will enhance your success rate.

Are Single Function Test Devices Necessary with the Availability of Multi-Function Test Equipment?

  • May 2025
  • Number of views: 804
Article

Modern testing devices now have more capability than ever. Modern test equipment has gained multi-function testing capability. They even package the tests into colorful professional reports. With that being said, do we still need single function equipment to accurately diagnose and perform high quality inspections on electromechanical equipment?

Consejos para rebobinar motores de alambre redondo de 2300 Voltios

  • May 2025
  • Number of views: 753
Article

Desde la perspectiva del fabricante, un motor de 2300 voltios con bobinado aleatorio representa una reducción sustancial en el costo de fabricación. Para el centro de servicio, el reto es rebobinarlos con éxito y ofrecer una reparación confiable. Aquí hay algunas técnicas que mejorarán su tasa de éxito.

¿Son necesarios los dispositivos de prueba monofunción cuando hay disponibilidad de equipos multifunción?

  • May 2025
  • Number of views: 618
Article

Los dispositivos de prueba modernos cuentan con más capacidades que nunca.  Los equipos de prueba modernos también han adquirido la capacidad de realizar pruebas multifunción. Incluso compilan el resultado de las pruebas en informes profesionales a todo color. Dicho esto, ¿seguimos necesitando equipos monofunción para diagnosticar con precisión y realizar inspecciones de alta calidad en equipos electromecánicos?

Taking Three-Phase Winding Data

  • April 2025
  • Number of views: 1273
FREE for Members of EASA
Webinar recording

This presentation stresses the importance of taking accurate winding data and explains and emphasizes the consequences of inaccurate data. One of the main benefits of this presentation is to improve ability to “get it right the first time” to avoid the added cost and time of another rewind to correct errors.

Cleaning Commutator and Slip Ring Surfaces with a Brush

  • April 2025
  • Number of views: 1642
Article

When there is a need for cleaning the contact surfaces of commutators and slip rings with brushes, emery cloth with aluminum oxide is NOT recommended, as conductive abrasive particles will cause arcing and damage to the surface. Many times, stone cleaning, garnet paper and machining are not a convenient, sufficient, or cost-effective option for machines as the priority is to keep the downtime to a minimum. This is when the carbon brush can be designed to clean up the contact surface.

Introduction to Large Language Models (LLMs) and Prompt Engineering

  • April 2025
  • Number of views: 1580
Article

Large Language Models (LLMs), powered by artificial intelligence (AI), can process and generate human-like text, making them invaluable for a variety of applications, including technical support, documentation, and troubleshooting. Just remember, these tools can be prone to error and when unrealistic or poor prompts are used.

Limpiando las superficies de los colectores y anillos rozantes con escobillas

  • April 2025
  • Number of views: 771
Article

Cuando sea necesario limpiar las superficies de contacto de los colectores y anillos rozantes, NO se recomienda usar tela de esmeril con óxido de aluminio, ya que las partículas abrasivas conductoras pueden causar arcos eléctricos y dañar la superficie. Muchas veces, la limpieza con piedra, el papel granate (Garnett) y el mecanizado no son una opción conveniente, suficiente ni rentable para las máquinas, ya que la prioridad es minimizar el tiempo de parada. En este caso, la escobilla de carbón se puede diseñar para limpiar la superficie de contacto.

How K&N an Impel Company Uses EASA’s Online Learning Center to Encourage Continuing Education

  • April 2025
  • Number of views: 1138
Article

Employee recruitment, retention and succession are all areas that are challenging and infinitely important to business and personal success. Increased employee engagement translates into enhanced quality outcomes and generally positive working conditions. So, how do we get there?

Management Tip: A Tailored Approach to Employee Rewards: Why to Consider Shifting Away from One-Size-Fits-All

  • April 2025
  • Number of views: 917
Article

Revamping your employee reward system to shift away from a standardized approach to a more personalized model that offers a variety of options can make a big difference in engagement.

Introducción a los Modelos de Lenguaje Grandes (LLM) e Ingeniería de Solicitudes

  • April 2025
  • Number of views: 811
Article

En el campo de la tecnología electromecánica, en evolución rápida, es crucial estar al día con las últimas herramientas y metodologías. Una de estas herramientas que ha cobrado gran relevancia es el Modelo de Lenguaje Grande (LLM). Estos modelos, impulsados por inteligencia artificial (IA), pueden procesar y generar texto con una calidad similar a la humana, lo que los hace invaluables para diversas aplicaciones, como soporte técnico, documentación y resolución de problemas.

Smells Like Money to Me

Sewage and wastewater treatment pumps can be profitable

  • March 2025
  • Number of views: 1409
Article

Sewage and wastewater treatment pumps are common machines repaired in EASA service centers. While both odor and biohazard are real problems, there are ways to deal with each, and service centers looking to broaden their repair market should not shy away from a profitable market because of the odor and biohazard. 

Para mí, huele a dinero

Las bombas de tratamiento de aguas residuales pueden ser rentables

  • March 2025
  • Number of views: 1909
Article
Las bombas de tratamiento de aguas residuales y residuales son máquinas habituales que se reparan en los centros de servicio de EASA. Si bien tanto el olor como el riesgo biológico son problemas reales, hay maneras de abordar cada uno de ellos, y los centros de servicio que buscan ampliar su mercado de reparación no deberían rehuir un mercado rentable debido al olor y el riesgo biológico.

Endplay and End Float

  • February 2025
  • Number of views: 3363
FREE for Members of EASA
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.

IEC to NEMA Motor Ratings

  • February 2025
  • Number of views: 2242
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.

Los exclusivos motores de CA de las apiladoras de troncos: más allá del diseño D

  • February 2025
  • Number of views: 1169
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.