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10 ft 10 in (3.30 m) Floor height: 40 in (1,016 mm) Doors: Sliding, 6 per car: Maximum speed: 75 mph (121 km/h) Traction system: Pre-rehab: Chopper control Post rehab: Alstom ONIX 2000 IGBT–VVVF [21] [22] Traction motors: Pre-rehab: DC motor Post rehab: 4 × Alstom 4EXA 2122 165 kW (221 hp) 3-phase AC induction motor: Power output: 660 kW ...
Today DC motors are still found in applications as small as toys and disk drives, or in large sizes to operate steel rolling mills and paper machines. Large DC motors with separately excited fields were generally used with winder drives for mine hoists, for high torque as well as smooth speed control using thyristor drives. These are now ...
Most of these were short production runs (one, two, or four units) that were used by a single railroad. These consisted of Winton prime movers and General Electric generating, control, and transmission components inside a carbody whose assembly was subcontracted to another manufacturer, since EMC did not commence regular road locomotive ...
Such a test starts with the motors at +25 °C (and the outside air used for ventilation also at +25 °C). In the USSR, per GOST 2582-72 with class N insulation, the maximum temperatures allowed for DC motors were 160 °C for the armature, 180 °C for the stator, and 105 °C for the collector. [13]
The Zephyr used the first major product of the new GM-Winton venture, a 600 hp, eight cylinder version of the Winton 201A Roots blown, uniflow scavenged, unit injected, 2-stroke diesel engine. As the Budd and Pullman Standard companies entered contracts to build more diesel-powered streamliners, they became major customers for EMC.
The Swedish Rc locomotive was the first series locomotive that used thyristors with DC motors. Rectifier locomotives, which used AC power transmission and DC motors, were common, though DC commutators had problems both in starting and at low velocities. [further explanation needed] Today's advanced electric locomotives use brushless three-phase ...