Mastering Medium Voltage Schematics Episode 05

Dear All,

Welcome to the course about "Mastering Medium Voltage schematics". This training is start from very basic level to advance level. Focus has been given to deliver the practical and hands on knowledge.

Trainer have over 18 years of field experience and has worked at 11/132/220/500kV Substation, 1263MW power plant, 660kV HVDC system.  worked with several companies, SIEMENS, ABB, GE, SEC, KE, WAPDA, NTDC, ARAMCO, SABIC, MARAFIQ. Trainer has given hundreds of trainings online and offline, so it will be great to join this training and take advantage of field experience.

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