Which of the followingbus-bar schemes has the lowest cost ?
A)Ring bus-bar scheme
B)Single bus-bar scheme
C)Breaker and a half scheme
D)Main and transfer scheme

Question

Quizplus · Accepted Answer

The single bus-bar scheme is the simplest and least expensive of all the bus-bar schemes listed. It consists of a single bus-bar to which all the circuits are connected directly. This simplicity leads to lower costs in comparison to more complex schemes like the ring, breaker and a half, or main and transfer schemes, which require additional equipment and complexity.

Which of the Followingbus-Bar Schemes Has the Lowest Cost