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Racer Samuel (bigbadblowfish)
Race Number 1832
Date Sun, 6 Jan 2019 19:31:48 +0000
Speed 87 WPM Try to beat?
Accuracy 98.1%
Rank 1st place (out of 5)
Opponents biotic_god (2nd place) leffy (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: