Electrical Equipment: Transformers, Inverters, Rectifiers, Uninterruptable Power Systems, Generators Course

Course Overview:

This course covers all the basics of routine testing, maintenance, and troubleshooting of basic electrical systems including motors, transformers, generators, circuit breakers and uninterruptible power supply systems.

Participants will be able to lower costs and enhance system reliability by efficiently learning how to choose, install and maintain these systems. Other subjects covered in the course include maintenance of the equipment through predictive, preventive and corrective strategies, condition monitoring, earthing systems and diagnostic testing. 

The course is targeted at engineers, managers, and technicians and does not have any prerequisites from the candidates, making it relevant to professionals from all fields.

The study places strong emphasis on hands-on understanding of equipment functioning, fault finding, and safe operation of electrical systems for reliability and efficient use of the systems over an extended period.

Course Objectives:

This course is designed to provide a comprehensive understanding of the various types of motors, variable-speed drives, transformers, generators, rectifiers and inverters, uninterruptible power systems (UPS), circuit breakers, and fuses. Upon the successful completion of this course, participants will be able to specify select, commission, and maintain this equipment for their applications. Further, participants will have enough knowledge to achieve reduced capital, operating, and maintenance costs along with increase inefficiency. During the duration of this course, participants will:-

·       Understand diagnostic testing and inspection, advanced fault detection techniques, critical components, and common failure modes.

·       Study selection criteria, commissioning requirements, predictive and preventive maintenance, reliability, testing, and cost.

·       Discover the maintenance required to minimize their operating cost and maximize their efficiency, reliability, and longevity 

Who Should Attend?

Engineers of any discipline, managers, technicians, technologists, and other technical personnel. You don’t need to have any background in Electrical Equipment in order to attend this course uses.

Course Outlines:

Testing,  Troubleshooting Principles and Commissioning Guide Of Electrical Equipment

• Introduction
• Basic principles in using a drawing and meter in    
• Troubleshooting circuits
• Checks for circuit continuity with disconnected supply
• Checks for circuit continuity with live supply
• Tests and methods
• Testing devices
• Testing and Commissioning Methods
• Testing and Commissioning Procedures.
• Maintenance of Particular Types of Electrical Equipment
• Nomo gram for temperature correction
• Test voltages for Commissioning and Maintenance
• Recommended insulation values for equipment

Principles Of Maintenance

• Preventive Maintenance (PM)
• Basics
• Elements
• Predictive Maintenance(PdM)  (Condition-Based Maintenance) (CBM )
• The Basic Concept of Predictive Maintenance
• Benefits of Predictive Maintenance
• Impact of Maintenance
• Role of maintenance organization
• Types of Maintenance
• Maintenance Improvement
• Corrective Maintenance
• Preventive Maintenance
• Reactive Maintenance
• Condition Monitoring
• Scheduled Maintenance

Condition Monitoring For Electrical Equipment

• Approaches Based On Mathematical Models
• Reliability Centered Maintenance (RCM)
• Condition Based Maintenance (CBM)
• Partial Discharge
• Insulation Resistance Monitoring
• Insulation resistance test (IR)
• Megger test
• Polarization index test
• Dc hi-pot test
• Measuring insulation degradation
• Insulation power factor
• On line measuring partial discharge activity for insulation
• On-Line Monitoring Of Transformers
• Local Indications
• Thermography
• PDA - Partial Discharge Analysis
• Insulating Oil Properties And Tests
• Test for Dielectric Strength
• Water Content in Oil
• Acidity Test (Neutralization Number)
• Oxidation Inhibitor
• Interfacial Tension Test (IFT)
• Oil Color
• Oil Power Factor Test
• Insulating Oil Dissolved Gas Analysis (DGA)
• Understanding cable thermal behavior after installation
• Optical cable Temperature Monitoring

Earthling Systems

• Introduction
• Equipment Earthling
• System Earthling
• Unearthed systems
• Solid earthling
• Resistance earthling
• Reactance earthling
• Classification Of Supply / Installation System Earthling
• Earthling Via Neutral Earthing Compensator
• Distribution transformers
• Zig Zag transformers
• Comparison of Methods (Advantages/Disadvantages)
• Evaluation of earthing methods
• Testing The earthing electrode Resistance

Electrical Control Devices Fundamentals Maintenance and Troubleshooting

• Introduction
• General
• Control Devices, Types & Application
• Relays
• Classifications
• Types & Characteristics
• Relays Applications
• Inverse Time Over Current Relays Testing and Calibration
• Other Control Elements
• Diodes
• Thyristors
• Transistors
• Applications of Semi-Conductors Devices
• Power Devices
• Rectification (single phase)
• Rectification (three phase)
• Controlled Rectification
• Inverters
• Thyristors in A.C. Circuits
• Temperature Control Devices
• General
• Thermocouple
• Resistance Temperature Detector(RTD)
• Thermestor
• Basic Instrumentation Knowledge

Generator Fundamentals Maintenance ,Testing And Trouble Shooting

• Principles of Generators
• AC Generators  
• Generator excitation and voltage control       
• Diesel generator sets          
• Synchronizing of generators                  
• Load sharing               
•  Load shedding            
• Preventative Maintenance
• Trouble Shooting
• General Procedure
• Generator Does Not Produce Voltage
• Generator Produce Low Voltage
• Generator Produce High Voltage
• Generator Voltage Fluctuating
• Fault analysis for Generator Control Circuit

Motors, Motor Controller, Motor Starters Fundamentals, Maintenance And Troubleshooting

• Fundamentals
• Types of A.C Electric Motors
• Principles of Operation of the Induction Motor
• Enclosures and Cooling
• POWER FOR INDUCTION MOTORS
• STARTING OF INDUCTION MOTORS
• Motor Operation at Reduced Voltage
• Power Factor Correction
• Motor Testing
• Motor Failures

Circuit Breaker Fundamentals, Maintenance, Service ,Testing And Troubleshooting

• Fundamentals
• Air Circuit Breakers.
• Vacuum Circuit Breaker
• SF6 Circuit breaker
• Oil Circuit Breaker Ratings
• Fuses
• Trip Circuit Supervision
• Circuit-Breaker Control
• Low Voltage Molded Case Current Limiting Circuit Breakers
• HV Circuit Breakers Maintenance
• H.V Circuit-Breakers Tests 
• Low voltage Circuit Breaker Maintenance 

Transformer Fundamentals, Maintenance, Testing And Troubleshooting

• Principles of Transformers
• Saturation Curve & Voltage Ratio of Transformers
• Current Ratio & Impedance of Transformers
• Transformer Construction
• Transformer losses and efficiency
• Transformer Cooling & Types
• Transformer Polarity
• Transformer Applications
• Transformer Accessories
• Maintaining Transformers
• Preventative Maintenance
• Transformer Inspection
• Transformer Liquids
• Dielectric Test
• General Testing
• Other Important Tests
• Transformer Failure
• Disassembly for Inspection
• Common Transformer Abnormalities