Description of electric control for lift span of Arsta railway bridge in Sweden; lifting section has span of 75 1/2 ft, and in normal position gives clearance of 70 ft above water level; lifting effected by two electric motors, each developing 32 hp at 650 rpm with 440 v; current for motors taken from traction supply at 14-16, 000 v 1623 cycles, single phase, and stepped down by two single phase transformers mounted on outside of tower.
Lift bridge operation on electrified lines
Elec Ry Traction (Supp Ry Gaz)
1939
2 pages
Article (Journal)
English
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