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Racer Matt (ferrarifingerz)
Race Number 1035
Date Wed, 8 May 2019 05:27:46 +0000
Speed 90 WPM Try to beat?
Accuracy 96.2%
Rank 2nd place (out of 4)
Opponents ironmike905 (1st 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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