Day 1: Introduction to SF6 Switchgear

• 1.1. Overview of SF6 Switchgear
• • What is SF6 (Sulfur Hexafluoride)?
• • Role and importance of SF6 in electrical switchgear
• • Common applications (e.g., substations, industrial installations)
• 1.2. Advantages and Disadvantages of SF6
• • Benefits (e.g., compact design, high insulation properties, arc quenching)
• • Environmental concerns (e.g., greenhouse gas effects, leakage prevention)
• 1.3. Components of ABB SF6 Switchgear
• • Gas-insulated busbar (GIB)
• • Circuit breakers and interrupters
• • Disconnector switches
• • Instrument transformers and other auxiliary components

Day 2: Safety Protocols for Working with SF6 Switchgear

• 2.1. SF6 Handling and Safety Guidelines
• • SF6 gas properties and handling precautions
• • Personal Protective Equipment (PPE)
• • Gas leak detection and remediation procedures
• 2.2. Emergency Procedures
• • What to do in the case of SF6 leaks
• • Fire and electrical hazard response
• • First-aid for electrical shock
• 2.3. Environmental Impact and SF6 Disposal
• • Proper handling and storage of SF6
• • Recovery and recycling methods
• • Compliance with environmental regulations (e.g., Kyoto Protocol, local laws)

Day 3: Inspection Procedures

• 3.1. Review of Technical Documentation
• • Understanding circuit diagrams, wiring schematics, and manuals
• • Reviewing the system design and configuration
• 3.2. Inspection Planning
• • Scheduling and coordinating inspections
• • Safety checks and lockout/tagout procedures
• • Checklist for tools and equipment needed for inspection
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• 3.3 Visual Inspection of Components
• • Identifying potential damage (cracks, leaks, corrosion)
• • Checking for signs of wear on bushings, insulators, and interrupters
• • Inspection of gas-tightness and seals
• 3.4 Electrical Testing
• • Insulation resistance measurement (Megger test)
• • Continuity testing
• • Functional testing of switches, breakers, and relays
• 3.5 Functional Testing of Mechanisms
• • Testing the operation of the circuit breakers (open/close operation)
• • Interlock checks for switches
• • Testing of auxiliary contacts

Day 4: Maintenance of ABB SF6 Switchgear

• 4.1. Routine Maintenance Procedures
• • Cleaning and lubrication of moving parts
• • Tightening of electrical connections and terminal fittings
• • Inspection and maintenance of gas handling equipment
• 4.2. Replacing Faulty Components
• • Techniques for replacing SF6 circuit breaker contacts
• • Replacing seals, bushings, and insulators
• • Ensuring correct installation of new components
• 4.3. SF6 Gas Handling
• • Refilling SF6 gas and monitoring gas purity
• • Vacuum evacuation and re-pressurization
• • Handling and storage of used SF6 gas

Day 5: Troubleshooting and Diagnostics

• 5.1. Common Issues with SF6 Switchgear
• • Gas leakage detection and sealing techniques
• • Breaker failure and common causes
• • Control and relay malfunctions
• 5.2. Advanced Diagnostics
• • Use of diagnostic tools (e.g., SF6 gas analyzers, thermal imaging)
• • Interpreting diagnostic data
• • Step-by-step fault isolation and resolution procedures
• 5.3 Documentation and Reporting
• • Understanding compliance with industry standards (IEC, IEEE)
• • Reporting maintenance activities and safety checks
• • Preparing reports for internal or regulatory audits