Parzha (parzha)

Race #1561

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Official speed 73.69 wpm (55.20 seconds elapsed during race)
Race Start June 24, 2020 6:06:01am UTC
Race Finish June 24, 2020 6:06:56am UTC
Outcome Win (1 of 3)
Accuracy 96.0%
Points 71.23
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.