Answer: Feeder is a line which supplies a point of distribution network without being tapped at any intermediate points. In simple term, the feeder may be defined as the line carrying current from the secondary substation to the distribution substation or as a primary distribution line.
Distributor is a line from which tapping are taken along its length for providing supply to the consumer.
A feeder is a conductor which connects the sub-station or local generating station to the areawhere the power is distributed. Generally, no tapping are taken from the feeder, so the current isremain same throughout. The main consideration in the design of a feeder is current carrying capacity.
A distributor is a conductor from which tapping are taken for supply to the consumer. Whiledesigning the distributor , voltage drop along its length is the main consideration.