. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . 8 e SI 100,000 80,000 60,000 40,000 20,000 0 500 Amperes 0 ~ 4k AB 60 Pre [uer cy / — CT) 2516 1 / E 0 / / 1 1 ) ^B / \ °. \, ^^ ° / ^ r^ t ^ E _ aSt^ ^ _J 100 200 SOD 400 fiOOAmperei Fig. 158. — Variation of Pressure Drop per Milewith Total Current, Single Rail Alone, Fig. 159. — Variation of Pressure Lost per Milewith Total Current. Single Rail ^I ^ ^ \j ^ [/ ^ L\ ^■; o ■^-= >^ B -srr ^ {! x ^ ^■ T^ y r / <x ■^ y / eqir ;ncj ^/ f B 40 D ] tS .. Fig. 160. —Variation o
. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . 8 e SI 100,000 80,000 60,000 40,000 20,000 0 500 Amperes 0 ~ 4k AB 60 Pre [uer cy / — CT) 2516 1 / E 0 / / 1 1 ) ^B / \ °. \, ^^ ° / ^ r^ t ^ E _ aSt^ ^ _J 100 200 SOD 400 fiOOAmperei Fig. 158. — Variation of Pressure Drop per Milewith Total Current, Single Rail Alone, Fig. 159. — Variation of Pressure Lost per Milewith Total Current. Single Rail ^I ^ ^ \j ^ [/ ^ L\ ^■; o ■^-= >^ B -srr ^ {! x ^ ^■ T^ y r / <x ■^ y / eqir ;ncj ^/ f B 40 D ] tS .. Fig. 160. —Variation of Ratio 500 Amperes QC. Drop Fig. lUO _ 200 400 500 Amperes D. C. Drop 161. — Variation of Power Factor withTotal Current. Single Rail Alone. Single Rail. data calculated from the investigations on a single rail and asingle trolley are graphically represented in Figs. 154, 155, 156,and 157. These curves are similar to those of the preceding 460 ELECTRIC RAILWAY TEST COMMISSION tests. Fig. 154 shows the pressure drop per mile, Fig. 155 showsthe power losses per mile, Fig. 156 shows the ratios of the the pressure drop, and Fig. 157 shows the power No. 51. Single Rail Alone.—The results of theinvestigations on a single rail alone are shown in Figs. 158, 159,160, and 161. These curves have been constructed in the samegeneral manner as those showing the results of the precedingtests. Fig. 158 shows the pressur
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