Daily Secondary Training

course video

Objectives

• Understand different types of substations (AIS, GIS, Hybrid) and their applications.
• Learn the concept of protection zones and the role of backup protection.
• Understand core protection coordination (upstream vs downstream).
• Identify phase-wise tripping schemes at different voltage levels.
• Gain knowledge of auxiliary supply systems in substations.
• Understand different types of faults and their causes in power systems.

Key Topics

• AIS (Air Insulated Substation) concept
• GIS (Gas Insulated Substation) concept
• Hybrid Substation: Combination of AIS and GIS
• Protection Zones & Backup Protection
• Zones of Protection basics concepts
• Protection design concepts
• Auxiliary supplies basics
• Importance of back up protection in power systems analysis

Practical Focus

• Walk-through of AIS, GIS, and Hybrid substation configurations.
• Identify protection zones and overlapping areas.
• Trace the sequence from fault detection to isolation.
• Compare primary vs backup protection operation.

Suggested Diagrams

• Single Line Diagram (SLD) showing different substation types.
• Protection zone diagram with overlapping regions.

Key Takeaways

• Clear understanding of substation types and their applications.
• Ability to interpret protection zones and backup schemes.
• Knowledge of fault types and their causes.
• Understanding how protection systems ensure reliability and stability of the power system