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A DC motor is an electrical motor that uses direct current (DC) to produce mechanical force. The most common types rely on magnetic forces produced by currents in the coils. Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current in part of the motor.
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Thomas Davenport (July 9, 1802 – July 6, 1851) was a Vermont blacksmith who, with his wife Emily, constructed the first American DC electric motor in 1834. [ 1 ] Biography
As the US Motors and Generators Business Unit of ABB, ABB Motors and Mechanical Inc. markets, designs, manufactures, and provides service for industrial electric motors, generators and mechanical power transmission products. This business was formerly known as Baldor Electric Company until its company name was merged into ABB on March 1, 2018.
Series wound motor; Series-parallel switching; Servomotor; Shaded-pole motor; Shaft voltage; Single-molecule electric motor; Singly fed electric machine; Slip ring; Spacecraft electric propulsion; Specific fan power; Split-phase electric power; Stator; Stepper motor; Sub-Micro AC Drive; Superconducting electric machine; Switched reluctance ...
Serbian-American, engineer and inventor; having worked independently from Ferraris, presented a paper in May, 1888 to AIEE describing three patented two-phase four-stator-pole motor types: one with a four-pole rotor forming a non-self-starting reluctance motor, another with a wound rotor forming a self-starting induction motor, and the third a ...
The museum is the oldest operating trolley museum in the United States and has one of the largest collections of trolley artifacts in the United States. Frank's son Robert C. Sprague would go on to found and lead the Sprague Electric Company as its president (1926–1953) and CEO (1953–1987). At its peak, Sprague Electric employed 12,000 ...
Such a test starts with the motors at +25 °C (and the outside air used for ventilation also at +25 °C). In the USSR, per GOST 2582-72 with class N insulation, the maximum temperatures allowed for DC motors were 160 °C for the armature, 180 °C for the stator, and 105 °C for the collector. [3]