Sophie (sdw199)

Race #5594

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Official speed 88.90 wpm (45.76 seconds elapsed during race)
Race Start June 4, 2019 10:18:04pm UTC
Race Finish June 4, 2019 10:18:50pm UTC
Outcome No win (1 of 1)
Accuracy 97.0%
Points 85.94
Text #4060101 (Length: 339 characters)

A train equipped with, say, two dc motors, is started with both motors connected in series to an external resistor. As the speed picks up, the resistor is shorted out. The motors are then paralleled and connected in series with another resistor. Finally, the last resistor is shorted out, as the train reaches its nominal torque and speed.