The seminar will cover DC machine theory and operation, as well as repair tips. Topics will include testing and winding of armatures, fields, interpoles and compensating windings, machine work, balancing, assembly and final testing. The theory portion is structured so that it can be grasped by entry-level personnel, while the overall material is in-depth enough that those with 30 years of experience or more will benefit.

Partial list of topics covered in the seminar include:

• DC machine operation explained pictorially
• Importance of symmetry to proper performance
• Disassembly, test & inspection tips
• Comparison and explanation of electrical test methods
• Data-taking tips, with emphasis on critical information
• Commutation and commutation difficulties
• Armature and field winding tips
• Field compounding
• Assembly tips & test methods
• Accessories, including tachometers
• Troubleshooting techniques

The accompanying book is not meant to replace the many good texts that cover the theory and design of DC machines, but to supplement them. Its purpose is twofold: to help the technician understand DC machine theory without complex formulae; and in a larger sense, to record in one place the repair procedures and tips usually learned the hard way during a long career of DC machine repair. It may take a decade or longer for a technician to become proficient and knowledgeable. We hope this book will cut many years from that timeline.

The text begins with DC theory (no math, we promise!), and then follows the logical progression of a DC machine through the service center. Disassembly, inspection and testing are covered in the initial chapters.

Subsequent chapters are organized around the main parts of a DC machine. The final chapters cover assembly, final testing and application issues. Sections focusing on components explain how those parts work, how they are made and how they can best be repaired.

Repair tips gleaned from EASA members’ decades of experience are liberally sprinkled throughout the book. While many texts about DC machines explain how they should work, this is the first (to our knowledge) to discuss all the exceptions that a repairer is liable to run across during a lifetime of working with DC machines. These might otherwise be labeled “lessons learned the hard way,” except that the reader can benefit from having all these special cases collected in one source. When possible, it is better to learn by reading than by trial and error; otherwise, the first encounter with a unique design can result in a painful “learning experience.”

A DC machine can be used interchangeably as a motor or generator, simply by changing the connection. Any DC motor can be driven and used to produce power, and any DC generator can be motorized to provide mechanical power. Although this text predominately refers to “motor;” the material applies to both motors and generators.

As with the other EASA publications—Principles of Large AC Motors, Mechanical Repair Fundamentals of Electric Motors, and Root Cause Failure Analysis—each section is designed to stand alone. The small amount of duplication is intentional, to save the reader from flipping back and forth between sections.

Course trainer - John Allen
After graduating from UMIST with a BSC in Electrical Engineering & Electronics, John started his working life in 1970 as an electrical design engineer. He is an authority in our industry, and is also representing EASA in IEC Ex committees and working as an independent engineer and Trainer.

Pricing
£900 GBP (EASA Members)
£1000 GBP (Non-members)

Click here to register

One of the most important factors to consider when repairing & maintaining motor systems is to understand why do they fail.

This training is intended for anyone interested in understanding motor failures, and those who want to serve customers by addressing the cause of failure rather than the symptom.

For this new version, the training & manual have been reorganized and updated with new information including a new approach to methodology, new case studies and a new section covering synchronous machine failures. For example, the all new “Root Cause Methodology” section goes into great detail explaining that effective root cause failure analysis must take place within the context of a practical problem-solving methodology or framework.

It covers a modified Plan-Do-Check-Act process that emphasizes the importance of planning and the related problem-solving methodology components. In addition, besides a systematic approach to problem solving, root cause failure analysis of motors and motor systems requires familiarity with contributing factors attributable to various kinds of applications, environments and industries. This includes how various stresses can affect motor components and the reciprocal impact the motor system may have on the motor.

Participants at this training will receive a new manual with 328 pages that provides extensive information, including a wide range of failures, the likely causes listed, and the methodology for confirming the probable cause of each failure, with hundreds of pictures.

Seminar Highlights

• Root Cause Methodology (all new)
• Bearing Failures
• Stator Failures
• Shaft Failures
• Rotor Failures
• Mechanical Failures
• DC Motor Failures
• Synchronous Machine Failures (all new)
• Accessory Failures
• Case Studies (expanded)
• References
• Root Cause Failure Analysis

Click here to read more about the valuable book provided with this seminar!

Who should attend?

Motor Repair Specialists, Electrical maintenance technicians, supervisors, condition monitoring specialists, maintenance engineers and reliability engineers that are responsible for a fleet of electrical motors and want to learn how to diagnose and correctly find the root cause of an electrical motor failure.

Course trainer - John Allen
After graduating from UMIST with a BSC in Electrical Engineering & Electronics, John started his working life in 1970 as an electrical design engineer. He is an authority in our industry, and is also representing EASA in IEC Ex committees and working as an independent engineer and Trainer.

Pricing
£900 GBP (EASA Members)
£1000 GBP (Non-members)

Click here to register

Course description:
Members rely on EASA to provide technical assistance and training in all areas related to machinery repair. In the area of machinery vibration, there are training providers that offer general classes in vibration analysis and balancing, but the content is geared to plant maintenance personnel who would be conducting in-plant predictive maintenance services. Some key areas important to EASA service center technicians is not covered adequately, and much of the content does not apply to vibration testing conducted in the service center. This course is designed to address those shortcomings and provide fundamental training in vibration analysis and balancing that directly applies to technicians working in the service center. In addition, EASA service technicians commonly are called on to do field service troubleshooting and dynamic balancing in customer’s facilities. This training included tips for applying the fundamental knowledge of vibration analysis and balancing for these field service situations.

Course Objectives:
Provide the basic knowledge necessary to understand vibration parameters and their relationship to machine condition.

• Vibration amplitude, frequency, phase and high frequency parameters
• Applicable ISO standards and tolerances

Provide EASA service center technicians with the technical knowledge they need to effectively measure and diagnose vibration on machines being tested in the service center.

• Vibration parameters that should be considered
• Measurement and analysis techniques
• Machine mounting considerations

Provide the fundamental knowledge of dynamic balancing necessary to use common balancing instruments in the service center.

• How to set a balance tolerance
• Balancing machine setup, special fixtures and choice balancing speeds
• When to use single-plane, two-plane or static-couple methods

Who would benefit from this training?
Service center technicians who measure and analyze machinery vibration, and those who must evaluate the vibration data will benefit greatly from the fundamental understanding and knowledge provided by this training. Service center engineers who may be involved in writing, interpreting and applying vibration and balancing specifications and tolerances will gain a practical understanding of the terms, definitions and parameters encountered in those specifications.
As with any technical subject, fundamental math skills will allow attendees to quickly comprehend concepts and apply techniques. Vibration results from the mechanical and electrical forces at work in machinery, and a fundamental understanding of those forces, and machine components that cause them, will aid in the understanding and application of the subject matter.

Hotels Recommendations
If you need an Hotel, Please contact fbeghain@easa9.org

Registration information:
Prices guaranteed if more than 6 participants. All Training Registrations and payment have to be finalized 3 weeks before all courses
Hotel: Please let us know if you need a room, we can recommend some options. Click here

Course trainer - Gene Vogel
EASA Pump & Vibration Specialist
Before joining EASA as Pump and Vibration Specialist, Gene Vogel operated his own business, General Maintenance Equipment/Engineering, Inc. (GME), a marketing, service and training organisation for industrial maintenance and related technologies.

Pricing
£900 GBP (EASA Members)
£1000 GBP (Non-members)

Click here to register

The seminar will cover the common repair procedures for centrifugal pumps, including submersible pumps, vertical turbine pumps, single stage end suction pumps and split case pumps. The procedures are also applicable to other style pumps. For each type of pump, the inspection, disassembly, evaluation, repair and reassembly functions are presented. General pump test procedures will also be discussed.

Training Highlights
The importance of initial pump inspection – Documentation - How to evaluate pump condition and specify repairs - Disassembly procedures - Repair tips for specific style pumps - Common machine repairs - Mechanical seal installation - Pump final testing.

More information:
easa.com/education/private/seminar/fundamentals-pump-repair

Course trainer - Gene Vogel
EASA Pump & Vibration Specialist
Before joining EASA as Pump and Vibration Specialist, Gene Vogel operated his own business, General Maintenance Equipment/Engineering, Inc. (GME), a marketing, service and training organisation for industrial maintenance and related technologies.

Pricing
£900 GBP (EASA Members)
£1000 GBP (Non-members)

Click here to register

The High Voltage Winding Best Practice training is a 2 days training that includes 4 sessions.

1. Basic AC machine design theory & constrains
2. HV Coil insulation & control of partial discharge
3. HV Coil manufacturing & testing
4. HV Winding best practices

Session 1: Basic AC machine design theory & constraints

Design constraints - Critical design area

• Active surface area D2L, Amperturns/cm, flux & current densities etc
• Coil pitch factors
• Winding distribution factors
• Induction machine winding connections
• Consequent poles
• Lap & wave winding connections
• Concentric windings
• Star / Delta connections
• Control of stray losses using transpositions

Session 2: HV Coil insulation & control of partial discharge

HV Coil insulation basics

• Requirements for coil insulation
• Introduction to dielectric stress
• Introduction to partial discharge
• Insulation temperature classes
• Introduction to mica
• HV hot press coil design 
• Control of partial discharge

Session 3: HV Coil manufacturing & testing

Visual examples of different coil types 
Examples of typical coil data sheets 
HV Coil manufacturing

• HV coil insulation design
• Production of insulated rectangular conductor
• Coil shaping & insulating; Lap, concentric, half-bar
• Hot pressing for consolidation & slot cell insulation
• VPI insulation system
• Roebel coil design
• Coil testing & coil test standards

Session 4: HV Winding best practice

Recording coil & stator data

• Slot measurement & winding detail, left & right, handed coils
• Wedges, transpositions, endwinding blocking etc
• Core inspection & testing

HV Coil installation & shaping

• Coil fit tolerances in slot, to bracing rings
• Endwinding blocking & bracing
• Multi-turn coil connection
• Stator half-bar alignment & connection
• Coil & Winding testing

Basic partial discharge analysis 
Examples of failure modes

Course trainer - John Allen
After graduating from UMIST with a BSC in Electrical Engineering & Electronics, John started his working life in 1970 as an electrical design engineer. He is an authority in our industry, and is also representing EASA in IEC Ex committees and working as an independent engineer and Trainer.

Pricing
£900 GBP (EASA Members)
£1000 GBP (Non-members)

Click here to register