The Works Of Messrs. Schneider And Co.
Forfatter: James Dredge
År: 1900
Forlag: Printed at the Bedford Press
Sted: London
Sider: 747
UDK: St.f. 061.5(44)Sch
Partly Reproduced From "Engineering"
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122
MESSES. SCHNEIDER AND CO.’S WORKS.
dimensions of the boiler-house are : Length, 94 metres
(308 ft.) ; width, 18 metres (59 ft.) ; height to springing of
roof, 10 metres (32 ft. 9 in.). The engine-house is an iron-
frained structure 105 metres (344 ft. 6 in.) long, 16 metres
(52 ft. 6 in.) wide, and 12.50 metres (41 ft.) high. The
boiler and engine-houses are connected. The total capacity
of the boiler-house is for 20 generators, arranged in four
groups of five bollers each ; of these 18 would be sufficient
to supply the maximum requirements of the sector, leaving
Number of tubes
Outside diameter of tubes
Length of tubes
Water space ...
Steam ...
108
100.0 mm.
5.4 ni.
13.3 ni.3
4.9 m.3
108
3.94 in.
L7-8 in.
469.71 cub. ft.
173.05 cub. ft.
The engines that drive the exciting machines run at a
speed of 200 revolutions, and have an indicated horse-power
of 125. The dynamos are alternating-current machines of
the Zipernowsky system, with 40 poles ; they each have a
Fig.850
t— -------------------------X- - 900-----------» •
-269^--------------------Z-250 4-----------------
- - - i"7«0 ■■■1 • - ■ .......... - —
8
Eiglit-Pole Continuous-Current Dynamo.
Twelve-Pole Continuous-Current Dynamo.
two in reserve. The engine and dynamo-house is large
enough for 10 groups, of which eight would meet the
maximum demand, leaving two in reserve. The boilers
are of the multitubular type, with groups of tubes fixed
inclined in a fireclay setting, and a steam receiver
above. The following are the principal dimensions, &c.,
of these generators:
Registered working pressure ... 12 kg. 170 1b. per sq. in.
Heating surface of tubes 183.20 n? 1972 sq. ft.
Total heating surface ... 210.00 m-' 2260 sq. ft.
Grate area 4.50 m2 48.44 sq. ft.
capacity of 400 kilowatts at 3,000 volts, their normal speed
is 125 revolutions, and they weigli 23 tons. The exciting
dynamos are of the ironclad type, with six poles ; their
normal capacity is 300 amperes and 110 volts, with a speed
of 200 revolutions.
The main engines are compound horizontal with two
cylinders, and driving the same shaft ; they can be worked
with condensera, or with direct exhaust. Steam is distri-
buted by piston valves operated by eccentrics on an extension
of the main shaft ; the low-pressure distribution valve is
keyed to the shaft ; that for the high-pressure cylinder is a