Air Insulated Electrical Substation Design

Air Insulated Substation Design Part 3 ⚡ Panels, CTs, VTs & DC Systems Explained

Continue your journey into high-voltage engineering with Air Insulated Substation Design Part 3, the next advanced step in understanding AIS systems used across electrical transmission networks. This course explores the deeper, more technical features of air insulated substations, focusing on panels, DC systems, current transformers, voltage transformers, control cabling, and advanced interlocking techniques.

With 2.5+ hours of structured, practical lessons, you will learn how protection and control systems operate inside substations, how DC systems are designed to ensure reliable operation even during AC failures, and how CTs and VTs keep substations safe and protected. Perfect for engineers, technicians, students, or anyone interested in power systems—this module will expand your understanding of how substations are built, managed, and secured.

Highlights / What You’ll Learn

How substation panels are designed and what protection/control equipment they house

Fundamentals of DC systems used to keep substations operational during AC outages

Understanding control cabling, routing, and panel connections

Advanced interlocking systems and how they enhance safety in AIS design

Current transformer (CT) theory, CT ratings, installation principles & fault behavior

How voltage transformers (VTs) operate and connect to protection systems

How these systems work together to maintain safe and reliable substation performance

Important Links (Suggested Placement)

🔗 Download AIS Design Resources

🔗 Explore Parts 1 & 2 of the AIS Course

🔗 Join our Power Engineering Learning Community

🔗 Follow for more Substation & Power System Tutorials

Suggested Timestamps

00:00 Introduction
03:29 Panels – Part 1
12:04 Panels – Part 2
21:44 Control Cabling – Part 1
32:58 Control Cabling – Part 2
45:14 Control Cabling – Part 3
1:02:24 Control Cabling – Part 4
1:17:54 Substation DC Systems – Part 1
1:30:14 Substation DC Systems – Part 2
1:43:26 Advanced Interlocking – Part 1
1:54:09 Advanced Interlocking – Part 2
2:05:01 Current Transformer Theory
2:15:48 Current Transformer Installation
2:27:45 Voltage Transformers
2:37:08 Air Insulated Substations – Part 3
2:37:08 Quiz: 18 Questions (No duration provided)

Hashtags

#SubstationDesign #AirInsulatedSubstation #PowerEngineering #ElectricalEngineering #CurrentTransformer #VoltageTransformer #DCSystems #HighVoltageEngineering #AISDesign