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Tappings are provided in_________
Primary Distributor
Secondary Distributor
Both
None of the above
Secondary Distributor
Tappings are physical connections or branch-off points provided along a distribution line to supply power to consumers. In a radial distribution system, these are exclusively provided on the secondary distributor as it is the final segment directly connected to the consumers' load points.
Tappings are physical connections or branch-off points provided along a distribution line to supply power to consumers. In a radial distribution system, these are exclusively provided on the secondary distributor as it is the final segment directly connected to the consumers' load points.
VdropтАЛ=IтЛЕ(r+jx) тАФ Represents voltage drop across a distribution segment
IdistтАЛ=тИСIconsumersтАЛ тАФ Current summation at tapping points
The distribution system is hierarchically organized into Feeders, Primary Distributors, and Secondary Distributors. Feeders carry power to the primary distribution points without any intermediate tappings. Primary distributors supply multiple secondary distributors, while secondary distributors facilitate the final step-down process to provide service mains to individual consumers via tappings.
Feeders are designed primarily for current carrying capacity and have no tappings.
Primary distributors are designed based on the voltage drop constraints.
Secondary distributors are designed based on the connected load and diversity factor of consumers.
Tappings allow for the branching of power to service lines.
Increases consumer accessibility to the power grid
Allows for modular expansion of the distribution network
Increases the complexity of fault isolation
Voltage profile degrades along the distributor length due to multiple tappings
Residential power distribution
Commercial area power service
In transmission lines, tappings are strictly avoided to ensure stability and protection coordination.
Option A is incorrect because feeders must provide uninterrupted power to distribution substations.
B is correct тАФ Tappings are provided on the secondary distributor to connect service mains to individual consumers.
Remember that feeders are characterized by 'no-tappings'тАФif you see a question about tappings, it must involve a distribution-level component, usually the secondary distributor.