Sebastian (sev___)

Race #120

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Official speed 47.64 wpm (85.39 seconds elapsed during race)
Race Start December 18, 2020 11:03:31pm UTC
Race Finish December 18, 2020 11:04:56pm UTC
Outcome Win (1 of 2)
Accuracy 93.0%
Points 46.05
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.