Saturday, 22 March 2014

A confusion about radial schemes in power distribution


My lecture notes about distribution systems/radial schemes say the following:


•In this scheme, feeders radiate from a substation in all directions and feed distributors at one end only.


• SA is the feeder which feeds the distributor BC at its end B.


The lecture includes the following picture of a radial scheme:


enter image description here


Question: How does this form a complete circuit ? Put differently, the service lines are not part of a circuit as far as I can see.




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