Types of Circuit Breakers and Methods of Preventive Maintenance
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Types of Circuit Breakers and Methods of Preventive Maintenance Course
Introduction:
Course Objectives:
By the end of the training, participants will be able to:
· Appreciate the importance of preventive maintenance check and servicing of the various types of circuit breakers
· Determine safe operation of the gas-insulated switchgear circuit breaker and its associated components
· Develop maintenance activities and maintaining system safety
· Understand the component functionalities of the gas and vacuum circuit breakers
· Explain methods of arc extinction for live tank and dead tank circuit breakers
· Recognize the importance of installing high voltage circuit breakers with green gas and clean air arc extinction designs
Who Should Attend?
This course is intended for
- Electrical Managers
- Electrical Engineers
- Maintenance Technicians
- Project Engineers
- HSE Professionals
Course Outlines:
Roles of Circuit Breakers under Fault Conditions
- The distinction between Load and Fault Current
- Sources of Short-circuit Current
- Introduction to Fault Calculations
- Symmetrical and Asymmetrical Faults
- Overview of Power System Categories and with Time Current Curves
- Importance of Instrument Transformers
- Types of Protection Systems with LSIG Characteristics
- The Role and Importance of the Circuit Breaker in Power Systems
General Principles of Arc Extinction Air, Gas and Vacuum Circuit Breakers
- Air-Break or Air Circuit Breaker
- Performance Characteristics and Arc Chute Functions
- Vacuum Circuit Breaker Design and Construction
- High Voltage Live Tank and Dead Tank Vacuum Circuit Breaker
- Maintenance and Testing Requirements for VCB
- Gas Insulated Switchgear SF6 Circuit Breaker Construction and Operations
- Substation Layouts and Merits
- Digital Substation Circuit Breakers
Eco-Efficient Gas for New Generation Circuit Breakers as Alternative to Sulphur Hexafluoride (SF6)
- Hybrid High Voltage Circuit Breakers
- Green Gas for Grid or g3 alternative to SF6
- SF6 alternative Eco-Efficient Gas
- Air Plus Insulation an alternative to SF6
- Fluoroketone alternative to SF6
- 8VN1 Clean Air Insulation
- Blue GIS VCB with Clean Air Technology
- Roles of Circuit Breakers and Substation Protection
Operations and Maintenance of SF6 Gas Circuit Breaker
- Properties of SF6
- Principles of Arc Extinction
- Features of Construction
- Insulation Principles
- Gas Leak Problems
- Specific Supervision Requirements
- Circuit Power Factor Considerations
- Maintenance and Testing Requirements
Circuit Breaker Specifications, Testing and Maintenance Programs
- Importance and Relevance to Specifications
- Circuit Breaker Failure and the Effects on Power System Operation
- Circuit Breaker Inspection, Testing and Maintenance Program
- The Principles of Modern Substation Control Systems
- Power Circuit Breaker Maintenance
- Case Studies