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A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.
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Direct torque control (DTC) is one method used in variable-frequency drives to control the torque (and thus finally the speed) of three-phase AC electric motors.This involves calculating an estimate of the motor's magnetic flux and torque based on the measured voltage and current of the motor.
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English: Commission Implementing Regulation (EU) No 1103-2011 of 31 October 2011 amending the representative prices and additional import duties for certain products in the sugar sector fixed by Implementing Regulation (EU) No 971-2011 for the 2011-12 marketing year
Bitcoin continued a decline Thursday to touch its lowest levels since November, trading as low as $91,600.The cryptocurrency's recent descent comes after it had climbed to record highs in the wake ...
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The 2014 World Cup in Brazil has begun. Check HuffPost's World Cup dashboard throughout the tournament for standings, schedules, and detailed summaries of each match.