E201 – Intro To Electrical Troubleshooting & Preventive Maintenance

E201 – Intro To Electrical Troubleshooting & Preventive Maintenance


It's just a matter of time.  Troubleshooting will be required at your workplace regarding an electrical problem.  This problem could be as simple as a lighting circuit, or it could be as complex as a variable frequency drive (VFD) control circuit.  When this time comes, it's going to require a certain skill (troubleshooting) to ascertain the problem, diagnose the circuit/component, and provide a solution to return the suspect circuit or component back to normal operation as soon as reasonably possible.  What is a skill?  The dictionary states that a skill is (1) A developed talent or ability; (2) An ability that has been acquired by training; (3) Ability to produce solutions in some problem domain.  The ability to troubleshoot encompasses all three definitions.  Definition ‘1’ relates to the troubleshooting skill that has already been developed.  Definition ‘2’ relates to one aspect in the development of a troubleshooting skill.  Definition ‘3’ relates that once the skill has been developed, one can produce solutions.  This is where HPC Technical Services comes in.  This course will provide the minimum skills required in the development of troubleshooting effectively.  Additionally, to hone your skill of troubleshooting, a myriad of circuits will be used that represent the ones that you will most likely come in contact with. Also, this course will describe the importance of having an electrical preventive maintenance program.  Topics discussed include: Basic Skills for Electrical Troubleshooting. Followed by discussion on Troubleshooting Control Circuits, Motors, Power Quality Problems, Lighting Problems, PLC’s, and Variable Frequency Drives.  Finally, the topics turn to Preventive Maintenance issues.

Who Should Attend? 

Personnel…..Mechanics, HVAC Technicians, Machine Operators, Technicians, Non Electrical Engineers, General Maintenance Technicians, or any person who would benefit from learning to safely work around electricity. Who Work At……Manufacturing Facilities, Hospitals, Commercial Buildings, Waste Water Facilities, Government Buildings, Schools, Shopping Centers, Apartment Complexes, and more.

Course Objectives

Upon completion of this course, the participants will be able to:
  1. Demonstrate a working knowledge on the requirements of using PPE with respect to electrical circuits.
  2. Demonstrate the skill of using a Digital Multimeter (DMM) when measuring voltage, resistance, or current.
  3. Describe the systematic approach to troubleshooting concept.
  4. Explain the operation of typical control circuits used in various applications.
  5. Demonstrate a working knowledge troubleshooting motors by using proper test equipment along with the proper technique.
  6. Describe the two types of three‑phase power used in power distribution.
  7. Explain the difference between overload, short circuit, and ground fault and describe the protection scheme for each.
  8. Demonstrate the proper interpretation of the Line‑To‑Neutral and Neutral‑To‑Ground voltage readings.
  9. Demonstrate a working knowledge of harmonics, how they're produced, the effect of harmonic current on the neutral conductor, and solutions used to minimize the effects of harmonic current.
  10. Demonstrate a working knowledge of the requirements of test equipment and the use of test equipment to determine the percent of harmonic current that is present on a given load.
  11. Describe the two main types of lighting circuits and their differences.
  12. Explain the difference between radial and ring circuits.
  13. Demonstrate a working knowledge on the location of the wiring diagram for a given gas discharge lighting system along with the purpose and operation of the ballast component.
  14. Demonstrate a working knowledge on the economic justification for a PLC.
  15. Describe the operational structure of a PLC.
  16. Demonstrate a working knowledge on properly interpreting a given PLC instruction.
  17. Demonstrate a working knowledge of the terminology used in Variable Frequency Drives.
  18. Explain the basic operation of a Variable Frequency Drive.
  19. Demonstrate a working knowledge of identifying common problems along with their corrective actions with respect to Variable Frequency Drives.
  20. Demonstrate a working knowledge of identifying the advantages of an Electrical Preventive Maintenance Program.
  21. Demonstrate a working knowledge of identifying the essential components of an Electrical Maintenance Program.

Course Outline

  1. Basic skills for electrical troubleshooting: Safety First; OSHA Requirements Regarding Troubleshooting and Qualified Persons; Using Electrical Drawings; Using Meters and Circuit Measurements; Developing a Logical, Systematic Approach to Troubleshooting
  2. Troubleshooting control circuits: Relays, Motor Starters and Control Devices; Reading and Interpreting Ladder Diagrams; Power Loss; Control Circuit Industrial Applications; Electric Motor Drives; Solenoid Operated Valves; Heating Elements
  3. Troubleshooting motors: Most Common Motor Problems; Electrical Problems; Testing Windings For Shorts, Opens and Ground Faults; Phase Unbalance; Mechanical Problems; Phase Rotation Testing
  4. Troubleshooting power distribution: Wye and Delta Systems; Overcurrent Protection; Branch Circuits
  5. Troubleshooting power quality problems: Sources of Power Quality Problems; Test Equipment For Troubleshooting Power Quality Problems; Harmonics
  6. Troubleshooting lighting circuits: Lighting Terminology; Types of Lighting Circuits ‑ Incandescent, Fluorescent, HID
  7. Troubleshooting Programmable Logic Controllers (PLCs): Overview of Programmable Logic Controls; Reading PLC Ladder Diagrams; Status Indicators and Error Codes; Force and Disable; Startup Procedures
  8. Troubleshooting Variable Frequency Drives (VFDs): VFD Terminology; VFD Basic Operation; Components, Pulse Width Modulation; Types of VFDs; Common Problems and Corrective Action
  9. Electrical preventive maintenance: Why Perform Electrical Maintenance; Overview of an Electrical Maintenance Program; Building Your Own Walkthrough Inspection Checklist

Course Dates / Location / Fee

See HPC’s website, www.TurbineGeneratorTraining.com, for detailed information regarding location and dates.  This course is offered in cities all across the USA. This 2-day class is preceded by, in the same week, a 2-day class on Electrical Fundamentals for Non-Electricians, E101.  Enroll for both courses and receive a discounted price.

What you will receive

  • HPC Technical Services' Textbook Intro to Electrical Troubleshooting & Preventive Maintenance, as written by Mike Whisnant.
  • HPC's Certificate of Completion with 14 PDH awarded.

Frequently Asked Questions

  • Will HPC Technical Services bring this course to our location for our personnel only? YES, call or email Stephen Parker, Stephen@TurbineGeneratorTraining.com for a price quotation.
  • Will HPC Technical Services customize the presentation at our site to suit our particular needs?
  • Is HPC Technical Services' textbook available for purchase as a reference document?   $95 + S&H.
  • What is the cost for HPC Technical Service to deliver this course at our location? Well, of course that can vary and it needs to priced on an individual need basis.  You gain from the customization and price.
  • Is HPC Technical Services' consultants available for "technical advise" on the evaluation of your maintenance procedures, systems, tests?   Call Stephen Parker, Stephen@TurbineGeneratorTraining.com for a rate sheet.


All HPC instructors are educated ‘experts’ on the subjects they teach, with years of relevant hands-on experience (typically 20+ years), and have proven instructional skills.  Brief resumes can be looked up on HPC’s website, www.TurbineGeneratorTraining.com.