Stepper Motors can Benefit from Motor Testing

September 18, 2023
Motor Talk

One of the more common questions asked by reliability workers with regard to Electric Motor Testing (EMT) is the type of electric motors that can benefit from condition monitoring testing. Obviously, various industries employ different sizes and types of motors. Some facilities would consider a 25HP motor to be enormous, while others have 250HP plus higher motors, and still, other facilities might only employ fractional horsepower motors. Sometimes overlooked as a candidate for EMT inspection are servos and stepper motors.

Discovering Anomalies in Lubrication Systems

Lubrication/Hydraulic systems are prime candidates for an infrared inspection. With a thermal imager, you can check any number of potential problems including:

The flow path of lubrication fluid
Valves, which sometimes leak by, or in a few instances are not in the proper position, can send fluid moving in the wrong direction. Warmer piping or hoses are an indication of fluid flow.

Temperatura de desconexiones eléctricas y endurecimiento por sobrecalentamiento

Iniciaremos aclarando que al referirnos a la temperatura en los contactos de un switch o desconexión hablaremos de ‘temperatura aparente’, pues como se indica durante nuestros cursos de Termografía de Nivel I y Nivel II, el metal sin forro o desnudo no emite mucho por lo que una medición radiométrica exacta resulta casi imposible. Habiendo dicho lo anterior, podemos utilizar la ‘temperatura aparente’ de una desconexión para tener una idea del grado de severidad de una anomalía detectada.

Rickover’s Rules

Most of you that know me also know that I spent 20 years in the Navy and was in the Submarine Service. As a result of the recent loss of the submersible Titan, I have had numerous questions regarding the incident.  Coincidentally while recently searching for a file, I came across an old file labeled “Rickover’s Rules.”  Unless you were in the Navy on a nuclear-powered vessel or worked in a nuclear power plant during the 60’s through the early 90’s. you would not know anything about Rickover.

What is a RIC and What Can I Utilize it for?

A RIC, “Rotor Influence Check” is one of the test methods utilized for de-energized motor testing. It is commonly used for baseline testing but can also be used to confirm or correlate some anomalous test results. It also works well for troubleshooting when a motor cannot be run. It should also be applied for motor acceptance as a quality assurance validation. The RIC test can be performed on all three-phase induction motors including synchronous motors and wound rotor motors.

Machinery Monitoring and Diagnostics

Course Details

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Format: 
Public Course
Category: 
Reliability Training
Language: 
English
Price: 
$2,495.00

Our training programs have been specifically developed to provide continuing efforts to help improve maintenance and reliability within your facility by teaching PRACTICAL applications. The MMAD course is perfectly suited for reliability engineers, maintenance mechanics/technicians, maintenance supervisors, and plant engineers. We can help prepare your plant crew to locate, address, and prevent failures in equipment and assets.

Upon completion of the course, participants will demonstrate the ability to select and apply condition monitoring and diagnostic tools for expected damage mechanisms and perform a comprehensive visual assessment of machinery installation and installation design. You will collect meaningful data using commonly available diagnostic tools, assess diagnostic data with commonly accepted alarm limits from applicable codes, standards, and specifications, and evaluate the condition and diagnostic data utilizing ATS diagnostic methodology. Students learn to prioritize, report, and execute corrective actions for machinery defects.

This reliability training course is instructed by reliability professionals in both public classroom settings and private on-site. Continuing Education: 24 PDH credits.

The Machinery Monitoring and Diagnostics course provides engineers, mechanics, technicians, operators, and supervisors the knowledge and skills required to accurately identify, prioritize and correct the most common causes of machinery failure. Learn from our experience with over 1000 failed pieces of industrial and commercial equipment. Course attendees will learn and practice monitoring and diagnostic techniques on motorized test stands.