busbar acts as a input and output for the substation to which all incoming and outgoing lines are connected to it where as feeder is connected between distribution substation output to the distribution transformer
busbar is comman conductor where's incoming and outgoing supply of power is conducted., and feedar is nothing as transmission line which feed the power from feddar to the distributor, feddar may be 11kv or 33 kv
both terms are belongs to conductors. according arrangement thier terminalogy changed. conductor is used at in put of any network is feeder. any network have one or more feeders. bus bar is connectin node in network. i.e is feeder is also a busbar
In the substation feeder is used to supply the current to the different areas & feeder takes the current from the busbar (conductor) which comes from the generating station
Busbar is like a node where different power system elements are connected like Alternators, Power Transformers etc.. while Feeder is used to feed electrical power from Busbar to distributors...
we can connect more than one feeder to a Busbar.
The busbar is used as a conductor and is used as a connection between the parallel and the feeder. The feeder is the supply, and it handles the relays.