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Racer Kai (gigadelic)
Race Number 2829
Date Fri, 14 Aug 2020 15:37:28 +0000
Speed 74 WPM Try to beat?
Accuracy 96.4%
Rank 4th place (out of 4)
Opponents yuvalalfa (2nd 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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