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typeracer

Pit Stop
Racer Ryan (ryanrobetomejia)
Race Number 47
Date Fri, 17 Apr 2020 1:46:33
Speed 43 WPM Try to beat?
Accuracy 92.7%
Rank 2nd place (out of 2)
Opponents yara02 (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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