ed72 (ed72)

Race #20479

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Official speed 78.93 wpm (51.54 seconds elapsed during race)
Race Start April 29, 2019 12:58:06pm UTC
Race Finish April 29, 2019 12:58:57pm UTC
Outcome No win (2 of 5)
Opponents 1. pillowend (90.24 wpm)
3. 99tester (75.09 wpm)
4. wise_owl (73.29 wpm)
5. ron777 (56.78 wpm)
Accuracy 100.0%
Points 76.30
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.