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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 ...
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]
A compound DC motor connects the armature and fields windings in a shunt and a series combination to give it characteristics of both a shunt and a series DC motor. [5] This motor is used when both a high starting torque and good speed regulation is needed. The motor can be connected in two arrangements: cumulatively or differentially.
A transformer stepped the voltage down from 11 kV to feed the rectifier. The DC voltage from the rectifier was then smoothed by a reactor before it was passed on to the traction motors. There were six traction motors, one for each axle. Starting tractive effort was 98,500 lbf (438,000 N); maximum power output 3,300 hp (2,500 kW).
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 ...
The Renfe Class 276 is a class of DC electric locomotive which was used by the Spanish rail operator Renfe. Based on the French SNCF Class CC 7100, the Class 276 was modified to fit the Spanish 1,674 mm (65.9 in) gauge and use a 3000V DC overhead supply. [1] More than 130 locomotives were supplied to Renfe in 1956. [1]