. Electric railway journal . hem to the Electric Railway Journal. 450 ELECTRIC RAILWAY JOURNAL [Vol. XLV, No. 10 Some Results of Italian Three-Phase Electrifications The Writer Shows from Operating Curves and Statistics of the Original Giovi Three-Phase Electrification ThatRegeneration in Practice Has Saved $19,000 a Year at the Coal Pile Regardless of Brakeshoe and Other Savings BY G. PONTECORVO, EAST PITTSBURGH, PA. Some of the results of three-phase electrificationsin Italy are already well known in this country, butsome very interesting results and tests have recentlybeen carried out by th
. Electric railway journal . hem to the Electric Railway Journal. 450 ELECTRIC RAILWAY JOURNAL [Vol. XLV, No. 10 Some Results of Italian Three-Phase Electrifications The Writer Shows from Operating Curves and Statistics of the Original Giovi Three-Phase Electrification ThatRegeneration in Practice Has Saved $19,000 a Year at the Coal Pile Regardless of Brakeshoe and Other Savings BY G. PONTECORVO, EAST PITTSBURGH, PA. Some of the results of three-phase electrificationsin Italy are already well known in this country, butsome very interesting results and tests have recentlybeen carried out by the Italian State Railway* and areworth a brief description. They were conducted on theold Giovi line, which is the most important of all the of per cent on a curve and has seven tunnels, ofwhich one is miles long with a 3 per cent importance of the line and the traffic handled on itare indicated by the statement that the electric equip- Theeb-Phase Electric Railway Lines in Italy. Length of Tracks in Opened for Single Double At Lines. trarfic. track. track. stations. Total. Valtellina 1902 Giovi (old) including Branch Line . . 1910-1913 1 Giovi (subsidiary).. 1914 J Savona-Ceva 1914 Monza-Lecco 1914 Mt. Cenis: Bussoleno-Bardo- necchia 1912 | Bardonecchia-Mo 1914 j •Simplon Tunnel . 1907 Being Turin-Pinerolo .... Electrified fSampierdarena- Genoa Sampierdarena- 10 . . THREE-PHASE IN PRACTICE—FIG. 1—STANDARD LOCOMO-TIVE OF GIOVI LINE lines electrified by the Italian State Railways on accountof its heavy traffic and steep grades. The three-phase electrifications of the State Railwaysin Italy now aggregate approximately 417 miles oftrack, and approximately 300,000-hp capacity of three-phase locomotives are already in service or on electrified portion of the Giovi line is mileslong with 3
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