. Electric traction and transmission engineering . view of a typical power house inwhich impulse wheels are installed. Speed regulation ofthe prime movers is accompHshed by deflecting the nozzlespast the buckets and allowing part of the water to impingeupon heavy metal deflector plates. Frequently hydrauKc developments have auxiliary steamor gas engine plants to supplement the water power duringthe dry seasons or during periods of peak loads. 100. Cost of Development. — The cost of a proposedhydraulic development depends largely upon the extent tow^hich the stream flow is to be developed, upon
. Electric traction and transmission engineering . view of a typical power house inwhich impulse wheels are installed. Speed regulation ofthe prime movers is accompHshed by deflecting the nozzlespast the buckets and allowing part of the water to impingeupon heavy metal deflector plates. Frequently hydrauKc developments have auxiliary steamor gas engine plants to supplement the water power duringthe dry seasons or during periods of peak loads. 100. Cost of Development. — The cost of a proposedhydraulic development depends largely upon the extent tow^hich the stream flow is to be developed, upon the natureand remoteness of the power market, as well as uponvarious topographical, geological, and meteorological con-ditions of the locality. The decision as to the commercialfeasibility of a proposed water-power development mustembrace a careful study of all such factors which influencewater supply, of the available head and its variations, of the power available with and without pondage, of the20 294 TRACTION AND TRANSMISSION. /S^IOA 00051. fflK. fcr .^.:::.-c-v;°/;:;;^M^ A. I f Lt^V■..v^.■;.,v■■r.^-.■■■y^^ .^ -^97X8 t<mmM
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Keywords: ., bookcentury1900, bookdecade1920, bookidelectrictrac, bookyear1920
