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Racer Roberto (rhobis)
Race Number 29
Date Thu, 19 Sep 2019 18:15:30 +0000
Speed 66 WPM Try to beat?
Accuracy 97.5%
Rank 2nd place (out of 5)
Opponents ildosrel (5th place) lacf95 (3rd place)

Text typed:

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.
Electrical Machines, Drives, and Power Systems (book) by Theodore Wildi (see stats)

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