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Racer Kevin (gkpc)
Race Number 6848
Date Wed, 30 Jan 2019 05:48:45 +0000
Speed 85 WPM Try to beat?
Accuracy 99.7%
Rank 1st place (out of 4)
Opponents legendaryklk (2nd place) sdhn83 (3rd 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: