[Sidenote: _Exciter
Engines_]

The two exciter engines are each direct connected to a 250 kilowatt
direct current generator. Each engine is a vertical quarter-crank
compound engine with a 17-inch high pressure cylinder and a 27-inch
low-pressure cylinder with a common 24-inch stroke. The engines will
be non-condensing, for the reason that extreme reliability is desired
at the expense of some economy. They will operate at best efficiency
when indicating 400 horse power at a speed of 150 revolutions per
minute with a steam pressure of 175 pounds at the throttle. Each
engine will have a maximum of 600 indicated horse power.

[Sidenote: _Condensing
Equipment_]

Each engine unit is supplied with its own condenser equipment,
consisting of two barometric condensing chambers, each attached as
closely as possible to its respective low-pressure cylinder. For each
engine also is provided a vertical circulating pump along with a
vacuum pump and, for the sake of flexibility, the pumps are cross
connected with those of other engines and can be used interchangeably.

The circulating pumps are vertical, cross compound pumping engines
with outside packed plungers. Their foundations are upon the basement
floor level and the steam cylinders extend above the engine-room
floor; the starting valves and control of speed is therefore entirely
under the supervision of the engineer. Each pump has a normal capacity
of 10,000,000 gallons of water per day, so that the total pumping
capacity of all the pumps is 120,000,000 gallons per day. While the