الخطوط العريضة

Day 1:

SWITCHGEAR - ORIGINS AND TYPES

• Single line diagrams
• Active and passive network components
• Circuit breaker utilization
• Alternative forms of MV switchgear – ring main units and load breaking/fault making
• switches
• Fuse switches
• HV fuses in combination with, and as alternatives to circuit breakers
• Auto-reclosers and auto-reclose operation

APPLICATION OF SWITCHGEAR

• Principles of current interruption
• Plain break circuit breakers
• Bulk and small oil volume circuit breakers
• Turbulator (explosion pot)
• Operating mechanisms
• Transfer earth circuit breakers
• Air break and air blast switchgear
• SF6 and vacuum
• Switchgear in association with disconnectors
• Fixed and withdraw-able designs
• Switchgear standards
• Factors affecting switchgear selection

Day 2:

SPECIFICATION OF SWITCHGEAR

• Switchgear ratings - highest system and impulse withstand voltages, load and short circuit currents
• Simple and complex protection systems
• Switchgear ancillaries, measurement CTs, VTs and relays
• Cable terminations
• Indoor and outdoor operation
• Substation and switch room layouts and design

Day 3:

SHORT CIRCUIT TESTING

• Symmetrical and asymmetrical breaking
• Make and break operations
• Understanding test oscillograms

SAFETY POLICIES

• General safety precautions and the use of personal protective equipment
• Principles of safety rules
• Principles of personnel authorization
• Operative training for safe operation of switchgear
• Isolation in a circuit breaker context
• Safety documentation
• Operational and safety locking, caution and danger notices
• Work safety in a substation environment
• Safety interlocks
• Substation alarms
• Individual study task and presentation -safety policies in my company and how they might be improved

Day 4:

ASSET MANAGEMENT IN A SWITCHGEAR CONTEXT

• Principles of time and condition based asset management
• Asset registers
• Asset management systems

DIAGNOSTICS, TESTING AND MAINTENANCE

• Switchgear inspection methodologies
• Partial discharge measurement and survey
• Timing tests
• Thermovision

Day 5:

DIAGNOSTICS, TESTING AND MAINTENANCE (CONT.)

• Mechanisms of deterioration
• Principles of circuit breaker maintenance
• Maintaining oil circuit breakers
• Contact maintenance and contact wipe
• Oil testing
• Maintaining vacuum circuit breakers
• Maintaining SF6 circuit breakers
• SOPs and DINs
• Switchgear defects and defect control systems

من ينبغى أن يحضر

 

Managers, engineers and technicians who work with switchgear and circuit breakers and who need to update their skills and knowledge in this critical area of electrical power systems protection.

المدة

5 أيام