. Electric traction and transmission engineering . Fig. 122. 2Q2 TRACTION AND TRANSMISSION. Fig. 123 shows the interior of the Rainbow Station of theGreat Falls Power Company, Montana. Each of the six3500 alternators is driven by a 6000 reactionturbine with two runners, each runner being enclosedin a separate spiral casing fed by a separate 8-foot steel. Fig. 123. penstock from a balancing reservoir and discharging intoa common draft tube. (2) High-head developments require long canals or pipelines for conveying water from the intake to the powerhouse. Level canals may be constructed
. Electric traction and transmission engineering . Fig. 122. 2Q2 TRACTION AND TRANSMISSION. Fig. 123 shows the interior of the Rainbow Station of theGreat Falls Power Company, Montana. Each of the six3500 alternators is driven by a 6000 reactionturbine with two runners, each runner being enclosedin a separate spiral casing fed by a separate 8-foot steel. Fig. 123. penstock from a balancing reservoir and discharging intoa common draft tube. (2) High-head developments require long canals or pipelines for conveying water from the intake to the powerhouse. Level canals may be constructed along the hillsideto a point above the power station, and from there thewater can be passed down to the water wheels through a HYDRAULIC STATIONS. 293 penstock. It is usually cheaper, however, to use a pipeline which need not be level but can follow the contour ofthe land. Wood, cast-iron, or riveted wrought-iron pipe isused for such purposes. The transmission of water throughpipes or canals is accompanied by a reduction in the avail-able head, the extent of which depends upon the size of thepipe or canal. This loss of head can be computed fromexpressions given in most books on Hydraulics. Provision must be made to prevent injury to penstocksor pipe lines which might occur when the turbine gates orwater-wheel nozzles are regulated too quickly. Automaticre
Size: 1808px × 1382px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookauthorsheldonsamuel1862, bookcentury1900, bookdecade1910
