Electrical Maintenance, Testing, Inspection and Risk Assessment

Introduction to Switchgear, Circuit Breaker and Transformer

Switchgear

Definitions, Ratings, Typical Construction

Control Power System

Electrical Maintenance of Protective Equipment & Instrument Transformers

Potential & Current Transformers

Transformer Differential Protection

Feeder & Motor Protection

Circuit Breaker

Construction and Contact Operation

Manual and Electrical operating Controls

Safe Operating Methods

Mechanical Inspections

Contact Resistance Tests

Insulation Resistance Tests

Insulating Gas and Oil Analysis

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

• Gas Relays , Fans and Pumps , Gauges , Tap Changer Controls
  
  

• Detailed analysis of several case histories
• Lightening , Oil Decay , Component Failures
• Internal & External Faults
  
  

• Oil Analysis , Chemical Analysis , Dissolved Gas Analysis
• Furan, Inhibitor, Power Factor Water and PCB Testing
  
  

• Insulation Resistance and Polarization Index Tests
• Turns Ratio, Excitation Current and Polarity Testing
• Capacitance and Power Factor Testing
• Winding Resistance Tests

Risk Assessment

The need and concept of risk assessment

Review of the existing work procedures

General risk assessment relating to electrical machinery.

Identification of deficiencies that relate to electrical safety

Manpower, Public and Equipment safety

Risk management, Problems and case studies

Identification of additional safety measure related labels and signage locations within your facility.