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In transmission system, feeder supplies power to
Transformer substation
Service mains
Distributor
All of above
Distributor
In an electric power system, a feeder is a conductor that carries power from a substation to a distribution point. Unlike distributors, feeders are designed to have negligible voltage drop along their length, meaning no tappings are taken from them between the supply point and the destination (the distributor).
In an electric power system, a feeder is a conductor that carries power from a substation to a distribution point. Unlike distributors, feeders are designed to have negligible voltage drop along their length, meaning no tappings are taken from them between the supply point and the destination (the distributor).
VdropтАЛ=I├ЧR тАФ Voltage drop calculation in conductors
IfeederтАЛ=Constant тАФ Current remains consistent due to no tappings
The primary function of a feeder is to transmit electrical energy from the generating station or a transmission substation to the distributors. Because the current magnitude remains constant throughout the length of the feeder, its cross-sectional area is determined primarily by its current-carrying capacity rather than voltage drop requirements.
Feeders do not have intermediate tappings.
The current in a feeder remains constant throughout its entire length.
Design of a feeder is governed primarily by its current-carrying capacity.
Distributors are the components from which consumers take service mains.
A service main is the smallest conductor connecting the distributor to the consumer's premises.
High reliability of power supply.
Constant voltage level maintained at the receiving end.
Higher installation cost if designed for future capacity.
Cannot supply power directly to multiple individual consumers.
Connecting transmission substations to distribution centers.
Primary medium for transporting power across localized urban grids.
Distributor: A line from which tappings are taken for supply to consumers.
Service Mains: A small cable connecting the distributor to the consumer's installation.
Option A is incorrect because substations are usually the source point for feeders, not the load.
Option B is incorrect because service mains are fed by distributors, not directly by feeders.
C is correct тАФ A feeder is specifically designed to transmit power from a substation to a distributor without any intervening load tappings.
Always remember: Feeders = Current constant (no taps), Distributors = Current varies (multiple taps).