. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . er mile, the variation of watts lostper mile, the ratio of pressure drop to pressure drop,and variation of power-factor for various currents and frequen-cies. Results of the Tests. The results include measurements with both direct and alter-nating currents for each of the following six conditions: Series A. — Double track and double trolley. Series B. — Double track. Series C. —Single track and single trolley. Series D. — Single track. Series E. — Single rail and single trolley. S
. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . er mile, the variation of watts lostper mile, the ratio of pressure drop to pressure drop,and variation of power-factor for various currents and frequen-cies. Results of the Tests. The results include measurements with both direct and alter-nating currents for each of the following six conditions: Series A. — Double track and double trolley. Series B. — Double track. Series C. —Single track and single trolley. Series D. — Single track. Series E. — Single rail and single trolley. Series F. — Single rail. For convenient reference and for the purposes of discussion,the results of the tests on track have been arranged under sevenseparate headings, ranging from Test No. 45 to Test No. 51,inclusive. Test No. 45. Direct Current. —The results o the directcurrent tests have been used for direct comparison with thealternating current data, and are included in the graphicalrepresentation of the results obtained under the various alter- 444 ELECTRIC RAILWAY TEST COMMISSION. A 60 ^ ;qi en(;y V/l i B n 40 ?I5 y? D — 15-0 ?c n / //^ ^/ ///^ / ^ / /^ ^^ A ^ ^ ^ ^ ^ ^ 600 Amperes 0 100 200 300 400 500 600Amperes Fig. 138, — Variation of Pressure Drop perMile withTotal Amperes, Double Track andTrolley. r Fig. 139, — Variation of Watts Lost per Milewith Total Amperes, Double Track andTrolley, 3. ^ . — ■^I >- *— jO 0- T .is C 25 t( T 15 — ^:^ -:^ S^ ■* i:=r -=c =■ ^ =o=; ^ ■^=t- ::= .<fe= =:^ rok 1 ., 300 1<|2P 200 300 400 500 eOOAmperes 0 100 200 300 400 500 600Amperes Fig. 140, — Variation of Rates „—- with D. C, Drop Total Amperes. Double Track and Trolley. Fig. 141. — Variation of Power Factor withTotal Amperes. Double Track and Trolley. log140 12010080604020 0 A 60 ^. ?qu!enc V A B 4025 j^ ; DF 16 0 * / ^ / T— / / / A \ ^ ^D A / >
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Keywords: ., bookauthorlouisian, bookcentury1900, bookdecade1900, bookyear1906
