Fig. 2,646.—Fort Wayne switchboard panel for one alternator and one transfer circuit. Diagram giving dimensions, arrangement of instruments of board, and method of wiring. The different forms of standard alternating current switchboard panels for single phase circuits made by the Fort Wayne Electric Works are designed to fulfill all the usual requirements of switchboards for this class of work. The line includes panels equipped for a single generator; for one generator and two circuits; one generator and one transfer circuit; one generator, an incandescent and an arc lighting circuit; and also feeder panels of different kinds.
It also permits the addition of a generator switch for each generator.
F, represents the simplest system with transformers.
It requires a single generator transformer bank, switch and line. The arrangement as show at F is used where a number of plants supply the same system.
G, represents a system having more than one line.
In this case a bus bar and transformer switch is used on the high tension side.
H, shows a number of generators connected to a set of low tension bus bars through generator switches, and employing a low tension transformer switch.
I, shows the connections of a system having a large number of feeders supplied by several small generators. In this case, the plant is divided into two parts, each of which may be operated independently.
J, represents the arrangement usually employed in modern plants where the generator capacity is large enough to permit of a generator transformer unit combination with two outgoing lines. By operating in parallel on the high tension side only, any generator can be run with any transformer. The whole plant can be run in parallel, or the two parts can be run separately.