Mastering Medium Voltage Schematics Episode 05

Dear All,

Welcome to the course "Mastering Medium Voltage Schematics". This training starts from a very basic level to an advanced level. Focus has been given to delivering practical and hands-on knowledge.

Trainer Introduction:

Your trainer brings over 21 years of experience in operation & maintenance, erection, testing, project management, consultancy, supervision, substation automation, SCADA, and commissioning. With a background spanning power plants, high voltage substations, and HVDC installations, he has worked with renowned organizations such as Siemens Saudi Arabia. He has been involved in over 20 high-voltage substation projects across Pakistan and Saudi Arabia.

His expertise encompasses a wide range of areas including protection systems, substation automation systems, design, testing, and commissioning of power generation systems, high voltage switchgear, protection relays, and control schemes. He has a proven track record of leading testing and commissioning teams for implementing electrical infrastructure projects for industrial clients, including steel and petrochemical industries.

This online course is part 05 of the Mastering Medium Voltage Switchgear drawings.  In this part, we have covered the following topics.

• Single Line Diagram of Bus Section

• Single Line Diagram of Capacitor Bank

• Trip Command and logic table ( Bus Section )

• Trip Command and logic table ( Capacitor Bank )

• Bus Section VT Loop

• Capacitor Bank VT Connection

• Capacitor Bank Door interlock with earth switch

• Bus Section interlocks

• Feeder interlock with busbar earth switch

• Bus Section Lockout circuit

• What is bistable relay

• Bus Section CT shorting circuit

• Zone Merging

• CT shorting via bistable relay

• Busbar Earth Switch Sheme

• CB Trip control Local / Remote / Emergency / OFF

• Tripping from Local / Remote

• Tripping from Emergency

• Trip coil 1 & 2 circuit

• Tripping from OC relay

• Tripping from BB relay

• Tripping from UV / UF Relay

• Trip circuit supervision relay

• Indication circuit

• Binary input circuit

• Loop supervision

• DC supply supervision

Best Regards