3-Day Motor Circuit Analysis Motor Diagnostic Workshop – Level I

Course Number: 10010
 

Three days of MCA™ (de-energized) training introduces you to MCA™ (de-energized low voltage winding insulation testing). This course presents the basic theories and principles necessary to understand the concepts and principles associated with this technology. It identifies the types of faults and guidelines that can be detected with this motor testing method. This course uses a combination of theory and hands-on exercises using instruments to provide the student with a basic understanding of this powerful de-energized winding testing method. This course prepares you to evaluate & troubleshoot single-phase and three-phase AC electric motors, coils, and windings, and improve the reliability and uptime of your plant. Course materials include a Workbook and Motor Circuit Analysis Manual.

Upon completion of this course, participants should be able to:

• Understand why most winding insulation degradation remains undetected until a catastrophic failure occurs!
• Describe the main types of failures associated with AC Motors
• Develop a basic understanding of how the chemical composition of the electrical insulations can affect its response to injected low-voltage signals.
• Understand the basic laws & principles of Electro-magnetism.
• Review the basic physics principles such as Oersted’s & Faraday’s law, combined with the theory of relativity & Maxwell’s equation & other atomic & electrical laws that have led to the development our modern electrical machinery and learn how these principles combine to affect the electrical response of signals injected to the machines winding system.
• Describe how changes in the insulation systems affect the R, L, Z, and I/F of the winding system.

• Explain how Joule’s Law, Ohm law, and Faraday’s Law affect the various measurements used in MCA.
• Identify the components in the winding system; factors that determine Resistance (R), Inductance (L), Capacitance (C), and Impedance (I/F)
• Use the AT7™ to establish the condition of a machine using static testing & to manually measure R, L, Z, Fi, and I/F
• List the several types of AC Motors, identify their components, and describe the purpose of each component.
• Understand how the major components are assembled and how different configurations affect motor operation, efficiency, and response to low-voltage injected signals.
• Review how the rotating magnetic field and torque are developed in an AC induction motor.
• Understand how motor shaft speed is affected by Voltage, Current, Nameplate Speed and Rated Power
• Learn how electrical insulation fails, the various failure stages and how to use MCA™ to identify the failure stages.
• Review the various techniques available to identify electrical insulation failures in winding systems.
• Familiarize themselves with the various measurements and guidelines associated with MCA™
• Use MCA™ measurements to evaluate a motor’s winding insulation condition.
• Learn how to recognize when to correct MCA™ readings caused by “Rotor Position”?
• Learn how to verify & correct winding insulation alarms caused by “Rotor Position”?
• Understand the most common faults associated with squirrel cages.
• Learn how to perform a dynamic test using the AT7™
• Learn to perform, interpret & evaluate an AC squirrel cage Induction motor’s winding & rotor condition using the AT7™ DYN test.
• Learn how to set up & operate the MCA™ Basic software.
• Understand how to connect AT7™ to the host computer, and upload MCA™ tests stored in an AT7™ to MCA Basic™ software input buffer.
• Learn how to map data from the input buffer to a permanent machine database.
• Learn how to create & print reports from the MCA Basic™ software.

2.5 Day Electrical Signature Analysis Motor Diagnostic Workshop – Level I

Course Number: 10011
 

3 days of Electrical Signature Analysis (ESA), Energized virtual training. This training introduces you to ESA (Energized Motor Testing). This course presents the basic theories and principles necessary to understand the concepts and principles associated with this technology. How ESA uses the motors supply voltage and operating current to detect & identify faults in the motor system. It teaches guidelines and the types of faults, which can and cannot be detected with this motor testing method.

This course uses real-world machinery data to teach the students how to operate and understand the basic principles of the ESA software. The principles presented include but are not limited to the development and interpretation of the Fast Fourier Transform (FFT), including an understanding of the importance of spectral resolution, causes and interpretation of sidebands and harmonics in the voltage & current spectrum. It provides an introduction to using the three-phase PQ measurements and how to combine them with the FFT displays to quickly and accurately identify faults in the motor system. It prepares you to evaluate single-phase and three-phase AC Induction motor systems to improve the reliability and uptime of your plant using the ATPOL Series (II & III) analyzer, Power System Manager (PSM) & ALL-TEST Pro ESA software.

This course uses the ALL-TEST Pro instruments, but the theories and principles presented are applicable to all energized motor testing systems.

Course materials include Workbook, ESA Software, & ESA Exercise Disk. PC (Laptop) with administrative access (Must run Windows XP or later) provided by the student.
 

Upon completion of this course, participants should be able to:

• Understand how to integrate ESA into a new or existing predictive maintenance program (PdM) to identify & evaluate developing faults or existing faults.
• Identify which electrical machines ESA can be performed on
• Understand the safety precautions associated with collecting ESA data.
• Take data using the ATPOL Series (II & III) analyzer both locally and remotely on AC motors.
• Create the ESA database and upload it from the ATPOL Series (II & III) to the host computer.
• Describe the major components and purpose of these components in AC squirrel cage induction motors.

• Explain how AC three-phase power creates a rotating magnetic field and develops torque.
• Calculate shaft rotating speed based on measure value of volt, current and nameplate power, and speed.
• Describe the stages of rolling element bearing failure.
• Explain the importance of spectral bandwidth, center frequency and how to calculate bandwidth and center frequency in a frequency spectrum.
• Change the spectral resolution in both the high and low-frequency spectrum.
• List which electrical & mechanical faults appear in the low-frequency spectrum.
• List which electrical & mechanical faults appear in the high-frequency spectrum.
• Explain the benefits of using the logarithmic display in the ESA spectral displays.
• Change the resolution in both the high and low frequencies.
• Explain the types of signal modulation and they present themselves in the electrical spectrum.
• Describe how to determine if a fault is the result of incoming power or an actual fault in the motor or driven machine.
• Be able to create sideband and harmonic markers in the voltage and current spectra to accurately determine faults in the motor system.
• Organize a motor system’s important operating characteristics and customize each data set to each specific machine.
• To create the files necessary to auto-populate each machine’s data sets with the machine details necessary for custom and automatic analysis of newly collected data.
• Explain the dynamic forces that occur with mechanical anomalies on the rotor such as unbalance, misalignment, eccentric rotor, bent shaft, etc.
• Identify which faults can be automatically analyzed using ESA.
• Understand the limits and guidelines that are used in fault detection for various faults.
• Using available tools, verify automatic analysis and generate automatic analysis reports.
• Define the various failure stages associated with rolling element bearing and identify which failure stage a bearing is currently experiencing.
• Describe the causes of static eccentricity, and how to identify this fault in ESA.
• List the most common faults associated with the squirrel cage rotor.
• Determine the severity condition of rotor bars degradation using ESA.
• Ability to set and classify motors based on critical and establish testing intervals.

Course Details
Continuing Education Credits Included
Format: Public Course
Language: English

3- Day Member Rate:$2,293
3-Day non-Member Rate: $2,493

5- Day Member Rate:$3,099
5-Day non-Member Rate: $3,399

Click Here for more information on the R&M Engineering Implementation Certificate Program.