Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. . tputs is not high. Anything which can be done to encourage the use ofpower during times of light load will improve the load factor and,as a rule, will cheapen the energy. SUBSTATIONS For efficiency of power generation and of power transmissionover large areas it has been found best to use
Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. . tputs is not high. Anything which can be done to encourage the use ofpower during times of light load will improve the load factor and,as a rule, will cheapen the energy. SUBSTATIONS For efficiency of power generation and of power transmissionover large areas it has been found best to use alternating-currentpower plants with substations for conversion of the power to direct-current form. A railway substation is in general a small building,or part of a large one, containing rotary converters, or motor-generator sets, for converting the current into the desired form. 285 188 ELECTRIC RAILWAYS The station contains all of the necessary auxiliary apparatus foroperating the machinery including lightning arresters and switch-boards. Storage-battery auxiliaries are in common use to pro-vide direct current in case the power supply from the main stationshould fail. Substations are located at various distances apart dependingupon the amount of power which they are called upon to supply. For e^^^. Fig. 167. Sectional Elevation of Siibstation for West Shore Railroad ordinary interurban service at 600 volts they may be 10 miles heavy city service they must be much closer together. On 1,200-volt interurban roads they may be farther apart. Figs. 107 and ICS show the details of a substation of the WestShore Railroad, an electrified section of which does a large interurbanbusiness in Central New York. In Fig. 167 we can trace the path ofthe power from the transmission line at the right to the rotary con-verter at the left. The transmission line is dead ended on bracket- 286 ELECTRIC RAILWAYS 189 supported insulators on the wall. The wires enter the buildingthrough entr
Size: 1674px × 1492px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthoramericantechnicalsoci, bookcentury1900, bookdecade1910
