single bus bar and single busbar with sectionalisation

                                            BUS BAR

1.                               SINGLE BUS BAR

                In this way, only one set bus - bar is attached to the entire generating station.  All transformers, generators and feeders are connected to this single bus - bar.  Generators are connected to the bus - bar via isolator and circuit breakers.  Similarly to incoming and outgoing feeders via isolator and circuit breakers are attached with bus bar. This system will suitable for both A.C and D.C

ADVANTAGES:

          

             1.  Only one circuit breaker is required for each                              outgoing circuit.  So it's simple and cost effective.

             2.  Since there are no transfer circuit breakers and                        disconnectors, the operation is simple

             3.  The number of circuit breakers required is low.                        So the cost of maintenance is low.

             4.  The potential of this bus - bar can be used for the                    operation of the relay on the line.  

             5.  It’s easy to expand in the future.

DISADVANTAGES:

             1.  In case of a fault in the bus - bar, all the systems                      connected to it will be affected.  

             2.  When performing maintenance jobs on the bus -                       bar, you must de - energize the entire bus - bar.                        That means shut down.  

             3.  To add a new link to the bus - bar - you must de -                      energize the bus - bar until that job is done.  

             4.  Flexibility is very low.

2.                SINGLE BUS BAR WITH SECTIONALISATION

                  

                    In this system, a bus - bar is divided into several sections.  Any two sections of the bus - bar are connected to the circuit breaker and isolators.  In the event of a fault in a section, that section You can simply isolate and make the next sections continuously available.  You can de-energize the section and perform maintenance jobs for any section repair.  So this arrangement can shut down the pan system completely.

ADVANTAGES:

             1.  Only one circuit breaker is needed.  

             2.  Its operation is simple.  

             3.  De-energise only the repaired section and work.  

             4.  There is no possibility to shut down as a                                    complete

DISADVANTAGES:

             1.  If you want to add any circuit to an existing                              system, you need to de-energize the section - up                      to half the work time.

             2.  An additional circuit breaker and an isolator are                      required, so cost is high. 

                              CLICK LOGO FOR MP3 #TAMIL

VIDEO IN TAMIL        : https://youtu.be/BJUEIjJrkhI

VIDEO IN ENGLISH   : https://youtu.be/a1hwNTGtvh0

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