Introduction:

This comprehensive 3-day training program equips participants with the knowledge and skills required for the safe and effective inspection, maintenance, design, repair, and troubleshooting of Low Voltage (LV), Medium Voltage (MV), and High Voltage (HV) circuit breakers (switchgear).

Objectives:

By the end of this training, participants will be able to:

• Identify different types of switchgear components and their functions.

• Apply safety procedures for working with high-voltage equipment.

• Perform routine inspections and preventive maintenance on LV, MV, and HV circuit breakers.

• Interpret electrical schematics and one-line diagrams.

• Analyze the principles of circuit breaker design based on short circuit current and arc interruption.

• Troubleshoot common circuit breaker malfunctions and implement corrective actions.

Day 1 : 

• Electrical Engineering Fundamentals: Review of AC power principles, three-phase systems, per-unit system, and voltage classifications.

• Introduction to Switchgear: Explore various components found in switchgear, including fuses, circuit breakers, isolator switches, load break switches, relays, current transformers, and voltage transformers.

• LV Circuit Breakers: In-depth analysis of low voltage molded case circuit breakers (MCCBs), including their construction, operation, types, and specifications.

• Hands-on Session: Participants practice safe inspection procedures and basic maintenance tasks on LV circuit breakers.

Day 2 : 

• CB Design Fundamentals: Understand the principles of circuit breaker design based on short circuit current levels and transient phenomena in power systems.
• Arc Phenomena and Circuit Interruption: Explore the properties and behavior of arcs, arc interruption theory, and factors influencing circuit breaker ratings.
• MV and HV Circuit Breakers: Delve into the design, operation, and maintenance aspects of medium and high voltage vacuum circuit breakers.
• Case Studies: Analyze real-world examples of circuit breaker malfunctions and troubleshooting techniques.

Day 3 :

• Switchgear Maintenance Management: Develop strategies for preventive maintenance programs, recordkeeping, and safety protocols for working with high voltage equipment.

• Advanced Troubleshooting: Learn advanced techniques for diagnosing and troubleshooting complex circuit breaker problems.

• Practical Session: Participants apply their acquired knowledge and skills to troubleshoot simulated circuit breaker malfunctions in a controlled environment.

• Conclusion & Assessment: Review key concepts, address any remaining questions, and conduct an assessment to gauge participant understanding.

Conclusion:

This training program provides a comprehensive foundation for individuals involved in the inspection, maintenance, design, repair, and troubleshooting of LV, MV, and HV circuit breakers. Through a combination of theoretical knowledge, hands-on exercises, and practical application, participants gain the confidence and competence to handle these critical tasks safely and effectively.