Analytical Troubleshooting Complex Electrical Systems

Mississauga, Ontario /
May 13 - 17, 2019 /
Course Code: 09-1201-2357

The confirmation of a course and venue depends on early registration; Register early to avoid the postponement or cancellation of a course.
  • Overview
  • Syllabus
  • Instructor
  • Location


After participating in this course, you will be able to:

  • Understand the functions of the major electrical equipment
  • Understand and setup a typical troubleshooting Plan for a complex installation
  • Perform root cause investigation of an fault event in a an electrical complex system
  • Write Corrective Action Plan to fix an Electrical System after a fault
  • Coordinate the troubleshooting activity of an electrical system after fault
  • Understand the importance of maintenance and testing of the electrical equipment

This course will demonstrate the most efficient systematic approach to troubleshooting complex electrical systems. Medium Voltage Substation examples, Backup Generators Excitation Systems; Large VFD and Motors; UPS Systems and Battery Banks are considered.

Course Outline:

  • Introduction to Troubleshooting
  • Example of inductive and deductive process for fault identification
  • Major equipment in electrical systems
  • Role of predictive and preventive maintenance, and examples
  • Systematic approach to troubleshooting example for a dry Power Transformer
  • Corrective action plans, with example for an oil cooled substation transformer failure
  • Root cause investigation of a backup generator failure
  • Systematic approach to a technical problem, example of a circuit breaker failure
  • Troubleshooting plan following pre-established procedure for the medium voltage induction motor failures
  • Hands on example of retrieving the fault type and location from a GE protection relay

Who Should Attend:
Electrical Engineers and Technologist • Maintenance electricians •  Qualified Electricians Lineman•  Qualified Testing Personnel • Substation Supervisors • Project Managers

More Information


Daily Schedule:
8:00 Registration and Coffee (1st Day only)
8:30 Session begins
12:00 Lunch
4:30 Adjournment

There will be a one-hour lunch break each day in addition to a refreshment and networking break during each morning and afternoon session

Day One

  • Introduction to Troubleshooting
  • Example of inductive and deductive process for fault identification
  • Typical Instrumentation and Testers for troubleshooting
  • Type of faults in electrical systems
  • Types of Disturbance in Electrical Systems
  • Major Equipment in Electrical Systems
  • Medium Voltage Switching Equipment
  • Rating of power switching equipment and enclosures
  • Grounding Systems for Power Transformers; Generators and Motors
  • Off Line Monitoring Systems and Procedures
  • On Line Monitoring the Systems for the Major Equipment

Day Two

  • Role of Predictive and Preventive maintenance, and examples
  • Routine System Walkdown and data collection
  • Remote monitoring and trending role of System Engineers
  • Major Events and Implications of the equipment failure
  • Field data gathering in case of equipment fault
  • Emergency Response Team
  • Abnormal Operation Procedures
  • Systematic approach to troubleshooting example for a dry Power Transformer
  • Typical Instrumentation for insulation testing
  • Root Cause Investigation for an Oil Cooled Power Transformer Fault
  • Insulation Test
  • DGA for an Oil Cooled Transformer
  • Power restoration in a Breaker and a half substation after a Power Transfer Fault

Day Three

  • Field Data gathering In case of an Event, for a Large fault of an UPS
  • Typical Equipment with Data Logger capability, Circuit Breakers; UPS; PLC
  • Analytical Calculation Example of short circuit in a substation using EASY POWER
  • Evaluation of the ARC FLASH in Medium Voltage Systems
  • Supplementary Protection for Medium Voltage Substations
  • SCADA and remote annunciation for fast reaction in case of an event
  • Corrective Action Plans, with example for a Oil Cooled Substation Transformer Failure
  • Testing and Validation for Available for Service Declaration
  • First Energization Procedure after a Power Failure
  • Root Cause Investigation of a Backup Generator Failure
  • Troubleshooting Plan for a Backup Generator Failure
  • Fault propagation and the role of Generator Synchronization
  • Power Restoration Plan after Blackout
  • Importance of the Spare Parts 

Day Four

  • Safety and Safe work area, Grounding and bonding of the equipment
  • Preparation for Field Testing, example of a high impedance connection in a buss bar
  • Coordination and annunciation with other teams
  • Systematic Approach to a technical Problem, example of a Circuit Breaker Failure
  • Root Cause Investigation of an ARC FLASH in a medium voltage Induction Motor, failure mechanisms
  • Systematic approach of troubleshooting for a Medium Voltage VFD
  • Chargers and SCR Control typical faults and troubleshooting
  • DC Bus Capacitors typical Faults and troubleshooting
  • Inverter IGBT and control typical faults and troubleshooting
  • Typical Drive Input and Output Filter failures and troubleshooting
  • Troubleshooting Plan following Pre Established Procedure for the medium voltage Induction Motor failures

Day Five

  • Hands on example of retrieving the fault type and location from a GE Protection Relay
  • Deductive and inductive thinking for the GE Relay Protection example
  • Study of the relay protection coordination as part of the troubleshooting PLAN
  • Hands On Example for using PLC Programming for identification of a FAULT
  • Example of an UPS & Battery troubleshooting in case of an catastrophic failure
  • NOMAX insulation failure modes, in case of a foreign material intrusion in the windings of a power transformer.
  • Effect of Harmonics, EMI and Interference on the Electrical Equipment
  • Equipment Aging and Overload Condition, IEEE Standard for Overloading a Power Transformer 
  • Q&A


Eduard Loiczli, P.Eng.

Dr. Eduard Loiczli, P.Eng.

Eduard is a Senior Electrical Engineer with over 30 years’ experience in motors and drives. His most outstanding contributions are related to the development of a High Speed Magnetic Levitation System; Vector Control System for Streetcars and Subways; and Medium Voltage 4.16Kv Drive for up to 4.5MW Induction Motor.


EPIC Learning Center
5670 McAdam Rd
Mississauga, ON L4Z 1T2

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Fee & Credits
  • 3.5 Continuing Education Units (CEUs)
  • 35 Professional Development Hours (PDHs)

$3195 + taxes


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