Electrical Installation & Maintenance

Low, Medium & High Voltage Circuit Breakers, Switchgears and Electrical Power Transformers

• Introduction to LT/HT Switchgear, Circuit Breaker and Transformer

• Switchgear

• Definitions, Ratings, Typical Construction

• Operation, Protection systems

• Installation guidelines

• Electrical Maintenance of Protective Equipment & Instrument Transformers

• Power Transformer

• Distribution Transformer

• Potential Transformers

• Current Transformers

• Transformer Differential Protection

• Feeder Protection

• Motor Protection

• Circuit Breaker (LT/HT)

• Construction and Contact Operation

• Installation guidelines

• Manual and Electrical operating Controls

• Safe Operating Methods

• Mechanical Inspections

• Contact Resistance Tests

• Insulation Resistance Tests

• Insulating Gas and Oil Analysis

• Maintenance of CBs

• Transformer Construction

• Tank

• Core, Coils, Types and Ratings

• Bushings , Tap Changers

• Factory Testing

• Dry, Oil and Liquid Filled Types

• Operation

  • Theory of Operation
  • Vector and Connection Diagrams
  • Important Electrical Relationships & Formulas
    
    
• Auxiliary Equipment
  
  
  • Gas Relays , Fans and Pumps
  • Gauges , Tap Changer Controls
    
    
• Failure Causes
  
  
  • Detailed analysis of several case histories
  • Lightening, Oil Decay
  • Component Failures
  • Internal & External Faults
    
    
• Installation guidelines
• Maintenance guidelines