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
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
Earthing Systems
Introduction
Equipment Earthing
System Earthing
Unearthed systems
Solid earthing
Resistance earthing
Reactance earthing
Classification of Supply / Installation System Earthing
Earthing Via Neutral Earthing Compensator
Distribution transformers
Zig Zag transformers
Comparison of Methods (Advantages/Disadvantages)
Evaluation of earthing methods
Testing the earthing electrode Resistance
Generator Fundamentals Maintenance, Testing and Trouble Shooting
Principles of Generators
AC Generators
Generator excitation and voltage control
Diesel generator sets
Synchronising 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 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
The purpose of electrical switchgear
The safe operation of electrical switchgear
Fundamentals
Air Circuit Breakers.
Vacuum Circuit Breaker
SF6 Circuit breaker
Oil Circuit Breaker Ratings
Trip Circuit Supervision
Circuit-Breaker Control
Low Voltage Molded Case Current Limiting Circuit Breakers
Protective Devices (Fuses, MCBs & RCDs)
HV Circuit Breakers Maintenance
HV 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
Transformer Oil Tests
Fault Analysis
UPS, Rectifiers, Inverters and Batteries Fundamentals Maintenance, Testing and Troubleshooting
UPS Fundamentals
Rectifications & Inverters
Inverters
Batteries and Battery Charging
Battery Charging Tests
Safety During Battery Charging
Mixing Electrolyte
Battery discharge test.
Troubleshooting Guide
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