Overview

Dear All,DC Distribution Panel (DCDB), are the one of the important panel in substation / power plant / factory etc. DCDB explained in this training has two incomers (two sources). One supply is feed through Battery Bank - No:01 and other is feed through Battery Bank- No:02. Interlocking is provided between incomers and coupler, we have explained single line diagram, interlock logic, interlocking schematic / wiring functionality is explained, what is normal position of any equipment, normally open and closed concept is also explained. Finally you can find schematics drawing for self-study.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.Following topics are covered.• Content List• General Characteristics• Component List• Single Line Diagram• Legends• Under Voltage / Over Voltage Relay F27• Concept of in comer and outgoing feeders• Use to bus tie breaker• Need of DC supply / batteries for at substation for control and protection• What is disadvantage of using AC supply for control and protection• Protection philosophy, tripping and closing coil function• Interlocking of Incomer 1 & 2 & Bus Tie explained• UVT Under Voltage Trip Coil in Air circuit breaker• Timer circuit• Trip / Close Coil Save contact• Interlock Logic, Auto Manual Off operations• Symbols & Legends• DC Supply Distribution SLD Drawings• Aux Contacts use, NO & NC• DC Supply Distribution detail Drawings• Metering & Indication Circuit at Control Panel• DC Annunciator Circuit• Socket & Lighting Circuit• Typical Lamp Test Scheme• Terminal Strip Drawings• Front and Side View Best Regards

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