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Racer Manu (manu_uchiha)
Race Number 2298
Date Sun, 26 Jul 2020 15:09:56 +0000
Speed 67 WPM Try to beat?
Accuracy 96.8%
Rank 2nd place (out of 5)
Opponents boguslav (4th place) luffy_san (5th 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)

Typing Review: