The sun. [volume] (New York [N.Y.]) 1833-1916, 1897-12-19
POWER FOR SALr LAKE CITY.
An Electrical Plant Thirty-seven Miles AwaJ
to Furnish Thousands or Esorse Power.

to Furnish Thousands or Horse Power.
OGDEN. Utah. Dec. 15.-Tests of a plant for
transmitting power by electricity between here
and Salt Lake City are now being made. The
distance is a fraction moro than thirty-seven
miles, as the line runs. Several days ago q test
was made of transmitting 1000 horse power
over three small wires. The pressure was 49,
900 volts. Then the wires were connected
with another set Of wires at Salt Lake City.
DO as to form q continuous circuit Of seventy
four miles from Ogden to Salt Lake and return.
The transformers at the generating plant were
doubled up 30 that the line pressure was 2s, 0
volts after the current had traversed the entire
distance. and the current was again brought
dow by transformers and turned into several
large motors. Tho result was surprising. as
fully tho one thousand horse power was indi-
Gated as being received over what was proba-
bly, the greatest distance over which a large
amount of power has ever been sent In this
country. Now some additional changes are
being made with the idea Of transmitting 1000
horse power over the same line with only q
slight increase in the voltage.
The capacity Of the plant is 5000 horse
power, which is transmitted on q three-phase
system. three bare copper wires carrying the
current instead Of four. as in other polyphase
systems. 1t is exceeded In size in America only
by tho Niagara Falls power plant. There is
this difference between the two plants. 1t
Niagara there Is an immense volume OF water,
with a limited fall. At Ogden there 10 a limited
supply of water with an immense fall and pres.
, sSTs; This Z high sa.{ pressure e. sDi St the eeI Tsser w fSGsSd
Otherwise the systems are Identical. ~
The work here involved the construction OF
a pipe line seven miles long, which has q fall
Of AGO feet. Tho water is at present turned
into the Pipe by q temporary dam, which win
DO replaced later by a masonry dam, on which
work Ia nOW being DrOAecuted. BULL I'M from
bed rock to prevent eeepage. The dam win be
400 feet long and locked into the solid rock OF
the canon on either side. This will make a
reservoir covering 1000 acres and storing
enough water TO generate 10000 horse power
For the FIRST six miles the pipe line is made
Of wood after special designs by the engineers
Of the company. The pipe is round. six feet in
diameter, and made Of strips Of Oregon fir. The
pipe Is one continuous barrel Of inlorlocked
slaves. bound BY hoops OF steel only q few
isSsss spS5t ;ho Sss %i poanat t0 OF s sana Msa u ssS
In the work. The engineering difficulties en-
countered in laying the pipe were great. It's
course 10 along Q rugged canon wall, over
georges, and through masses of rock. More than
1,b00 feet Of tunnelline had TO be done and six
steel bridges sPan rayines and chasms;
Pipe ends. is the biggest valve In the world. 1t
iB capable Of wtthstanding at tho valve gate a
pressure OF lO2 tons. 1t 10 operated by by.
draulic pressure. Each of the three largest
pieces took ton teams to haul 1t up tho noun.
tain side 70 lie position. From tho valve %
the pressure enormous, the pipe 10 OF steel. This
pipe was all made on the ground by the con-
uactorAl The abeeta of steel were received in
sections Of from 1900 to 5.4O0 pounds weighs