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245
The dynamos with engines are divided into two parts, one for
public and the other for private lighting.
The plant for public lighting comprises three direct coupled
sets of Browett & Lindley engines, and Siemens constant
current dynamos, and for private lighting four direct coupled
sets of similar types of engines and Siemens alternators,
together with two sets of single engines and Siemen's exciters
direct coupled.
The three engines are of the vertical compound condensing
type. They are of 35 h.-p., and run at 300 revolutions per
minutes. The four engines for private lighting two of the sets
are of 100 h.-p., and run at 200 revolutions per minute, and the
other two sets are of 50 h.-p., and run at 240 revolutions per
minute.
The effluent from the sewage works is used for condensing
purposes, and the plant for pumping is installed in the basement
of the engine house.
The plant comprises a general surface condensor, to which is
connected the main exhaust pipe receiving the whole of the
exhaust steam from the engines.
As already stated, the plant was designed to supply current for
5,000 8 c.-p. incandescent lamps for private lighting, and the
Committee were informed that there were now 4,700 on the
books ; the price charged is 6d. per unit to customers.
The arc lamps for street lighting are of the Brockie & Pell
type, and are suspended at a height of 24 feet from the ground
by means of brackets arranged at the top of iron standards.
They are capable of burning for 32 consecutive hours without
being retrimmed. The base of the lamps in some cases are used
for placing the transformers used in connection with the private
supply mains.
The method of distributing the current is on the high pressure
alternating current to the primary circuits of the transformers,
and it is there reduced from 2,000 volts to 102 volts.
The following is the number of men employed at the
station:— 1 Superintendent
2 Assistants
3 Engineers
2 Stokers
2 Labourers
2 Carpenters
WEST BROMPTON.
The works are situated in Richmond Road, adjoining the
Metropolitan District Railway, on a plot of land 470ft. long by
60ft. wide. The building consists of offices, workshops, testing-room,
boiler and engine-room.