. Electric railway journal . FIGS. 3 AND 4—ELEVATION AN |< - - 77-6- D FLOOR PLAN OF SUBSTATION 86 Electric Railway Journal Vol. 53, No. 2 the system of 498, and ap-proximately 177 miles of 500, cable would havebeen necessary. As this wouldcost approximately $650,000,while it was estimated that theadditional substations couldprobably be installed for $150,-000, assuming that new equip-ment was used in each of theseadded stations, it is quite ap-parent that the power systemcould not be built up economi-cally by adding feeder were many complicationsto be considered i
. Electric railway journal . FIGS. 3 AND 4—ELEVATION AN |< - - 77-6- D FLOOR PLAN OF SUBSTATION 86 Electric Railway Journal Vol. 53, No. 2 the system of 498, and ap-proximately 177 miles of 500, cable would havebeen necessary. As this wouldcost approximately $650,000,while it was estimated that theadditional substations couldprobably be installed for $150,-000, assuming that new equip-ment was used in each of theseadded stations, it is quite ap-parent that the power systemcould not be built up economi-cally by adding feeder were many complicationsto be considered in a proposedchange in trolley voltage, dueto the fact that in many placesthe line was operated throughtowns where it was not con-sidered safe to use the highervoltage on the trolley. There-fore the control equipmentwould have had to be providedto take care of two line volt-ages. Furthermore, therewere a great many old - type600-volt motors in use whichwould have had to be discardedif the trolley voltage was THERMOSTAT. ^Mounting Bolts=Terminals 30 3ZM*»«)«*H6 4650KS456 5e6C6!W-666870 7Z 7476TB80K8486aS»32949696»0 «K OH06IMII0IEMI16I18 I; p =Terminal Boards> Q = Switchboard Studs r—\ = Mounting Brack&tsF= Fuses — for Panels No. To Switchboard7 11 Resistance grid thermostat. 12 Positive bus 13 Circuit breaker 14 Resistance grid thermostat 15 No voltage release— 16 Circuit breaker 17 Fuse and No. 20 18 relay No. Fuse and No. 17 23 Contact on relay No. 26 24 wattmeter 25 All coils on relay No. 26 Contact on relay No. 26 27 Coil on relay No. 26 28 Coil on relay No. 26 29 3-pole switch bus O No. 2. 30 3-pole switch bus X No. 1. 32 Three-pole switch No. 2 33 Three-pole switch No. 3 34 Rev. current relay No. 29 35 Underload relay No. 36 Three-pole switch No. . 37 Underload relay No. 37 38 Underload relay No. 37. . 40 Reverse current relay 41 Machine positive 43 Rev. current
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
