typeracer

Pit Stop
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Racer Syed Hishamuddin (syed19805)
Race Number 4269
Date Sun, 23 Feb 2020 04:41:22 +0000
Speed 66 WPM Try to beat?
Accuracy 96.9%
Rank 1st place (out of 5)
Opponents kiwaa (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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