What do you mean Interconnected Distributor?

• Sometimes the ring main distributor has to cover large area, in that case voltage drop in some section may become higher than that of its variations limit. 
• In order to reduce voltage drop, the distributor are joined through a conductor is called as interconnected distributor. 
• Figure shows interconnected type ring main distribution system PQRST.
•  The point Q and S of the ring distributor are joined through interconnector QS. 
• The solution of this network is done through Thevenin theorem.

Steps

• Open interconnector QS and find potential difference between QS. It is equivalent to Thevenin voltage V_th.
• Calculate resistance viewed form point QS. It is equivalent to Thevenin resistance R_th.
• Join V_th, R_th and R_QS is in series.
• Current through interconnector I_QS = V_th / ( R_th + R_QS )

Advantages

• The main advantages of interconnected type ring main distributor are that the voltage drop at the interconnected point is reduced. 

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