Medium Voltage Substation Design BEE613A
Course Code: BEE613A
Credits: 03
CIE Marks: 50
SEE Marks: 50
Total Marks: 100
Exam Hours: 03
Total Hours of Pedagogy: 40H
Teaching Hours/Weeks: [L:T:P:S] 3:0:0:0
Substation Basics
Substation Introduction and Classifications, Busbar Types in Outdoor Switchyard, Outdoor
/Indoor Substation – Auxiliary Equipment in a Substation, Standards and Practices, Factors
Influencing Substation Design -Different factors like Altitude, Ambient Temperature etc. with
animation, Selection of Dielectric Strength for Electrical Equipment with animation on
creepage distance, Testing of Electrical Equipment, Concepts of Single Line Diagram.
Transformers and Switchgears
Classification of Transformers with a practical overview, Transformer Percentage Impedance
and Losses, Construction including busbar arrangement and safety features, Classifications of
MV Switchgear and Key Design Parameters, MV Switchgear Construction, LV Compartment,
Security Interlocks & General Arrangement, Control Circuit Components – Control Relays,
Time Delay Relays & Latched Relays), Control Scheme Basics, Trip Lockout, TCS and Antipumping Circuits, Logic Schemes.
Protection and Station Auxiliary equipment and Digital Substation
Power System Network, Protection System, Overcurrent and Earth Fault, Overcurrent and
Earth Fault – Coordination. Distribution Feeder Protection, Transformer – Unit/Main
Protection, Transformer Protection, Familiarization of NUMERICAL Relays, Diesel Generator
System, Instrument transformers (CT), Basics of AC/DC Auxiliary Power System & Sizing of
Aux. Transformer, DC System Components, Battery Sizing & charger Sizing, DG Set
Classification, and sizing. Evolution of Substation Automation, Communication System
Fundamentals, Substation Automation System: DI, DO, AI, AO, Remote Terminal Unit – RTU, Substation Automation Requirements – Time Synchronizing, HMI, SCADA.
Cabling System & Illumination, Outdoor SS Layout engineering, Erection Key Diagram,
Earthing and Lighting Protection
LV Cables – Power & Control, MV Cables, Methods for Cable Installation, Practical aspects of
Cable Sizing, Cable Glands, Lugs, and their Accessories, Types and Classifications of Surge
Arresters, Characteristics of Surge Arresters, Illumination System Design, Equipment Layout
engineering aspects for Outdoor Substation and related calculations and guide lines, Basics of
Outdoor Air Insulated Substation up to 33 kV – Statutory Clearances, Practical approach to Cable
routing layout for Outdoor S/S, Practical approach to Erection Key Diagram (EKD) for outdoor
switchyard, Importance and Types of Earthing, Earthing Design, Types of Earthing Material,
Lightning Protection.
MV substation Civil design, Fire Protection, HVAC, Maintenance and Safety
Transformer Foundation, Fire Wall, and Fire Rated Doors, Civil & Structural Engineering – MV
SS, Fire Detection & Alarm System and Fire Suppression System, Heating, Ventilation and Airconditioning (HVAC) for Substation, Need for Maintenance of a Substation & schedule,
Electrical Safety Rules, Standard Operating Procedures.