Electrical Distribution: Connecting Consumers
The question asks to identify the component that connects a consumer's electrical terminals to the main distribution network.
Understanding Distribution Components
Let's examine the roles of the options provided:
- Substation: Transforms voltage levels and acts as a major connection point but doesn't directly connect individual consumers.
- Feeder: Carries power from the substation to the distribution area but is upstream from the final connection to the consumer.
- Distributors: These are the main lines within the distribution network that supply power to multiple consumers.
- Service Mains: These lines specifically tap off from the distributors (or feeders) and run directly to the consumer's premises, connecting to their terminals (like the meter or main switch).
Identifying the Correct Connection
Based on the definitions:
- The component that directly links the consumer's setup to the electrical supply infrastructure is the service mains.
- It acts as the final link between the broader distribution network and the individual consumer's terminals.
Therefore, the correct term is service mains.
Important Questions from Distribution Systems
In a DC 2-wire feeder, the drop per feeder conductor is 2%. Find the transmission efficiency of the feeder.
What is the percentage saving in feeder copper if the line voltage in a 2-wire DC systems is raised from 100 V to 200 V for the same power transmitted over the same power distance and having the same power loss?
A 2-wire DC distributor cable 800 m long is loaded with 1 A/m. Resistance of each conductor is 0.05 Ω/km. Calculate the maximum voltage drop if the distributor is fed from both ends with equal voltages of 220 V.
The fundamental difference between a transmission line and a feeder is that:
Main consideration in designing of feeder is:
