
Shipboard Power System Architectures 45
2.4.4 ring bUs in navy shiP
A ring-bus architecture shown in Figure2.4 is often used in high-power navy ships.
It has four generators connected in parallel in a ring bus conguration and no emer-
gency generator. Note that the four generator buses along with the four bus-ties form
a square-shaped ring. Such an architecture without an emergency generator is pos-
sible when multiple generators are connected in parallel by a bus-tie in a way that
any one can be out for service with the remaining generators supplying the total load.
The physical locations of the generators and switchboards are generally in ...