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A growler is an electrical device primarily used for testing a motor for shorted coils. A growler consists of a coil of wire wrapped around an iron core and connected to a source of alternating current. When placed on the armature or stator core of a motor the growler acts as the primary of a transformer and the armature coils act as the ...
In the armature, an electromotive force is created by the relative motion of the armature and the field. When the machine or motor is used as a motor, this EMF opposes the armature current, and the armature converts electrical power to mechanical power in the form of torque, and transfers it via the shaft. When the machine is used as a ...
Category: Companies based in Oklahoma. ... Motor vehicle assembly plants in Oklahoma (2 P) P. Privately held companies based in Oklahoma (1 C, 9 P) R. Red Devil, Inc ...
Baldor Electric was founded in 1920 by Edwin Ballman and Emil Doerr. The name of the company was derived using part of each of their names. In 1967 the Company's headquarters were moved from St. Louis, Missouri to Fort Smith, Arkansas. In 2007, Baldor Electric acquired the Dodge and Reliance Electric brands from Rockwell Automation for $1.8 ...
YASA Limited (formerly YASA Motors Limited) was founded in September 2009 to commercialise a permanent-magnet axial-flux electric motor (YASA stands for Yokeless and Segmented Armature). The motor was developed for the Morgan LIFEcar in 2008 by Dr Malcolm McCulloch and Dr Tim Woolmer, then a PhD student, at the University of Oxford.
A permanent magnet motor is a type of electric motor that uses permanent magnets for the field excitation and a wound armature. The permanent magnets can either be stationary or rotating; interior or exterior to the armature for a radial flux machine or layered with the armature for an axial flux topology.
The first experimental electric traction motor tramway of 1875 was rapidly developed internationally for city use. [5] [6] [7] In the 19th century traction motor passenger car companies began to compete with the dominant citywide horse-drawn railway transportation system. [8] [9] [10]
This is a list of large or well-known interstate or international companies headquartered in the Tulsa Metropolitan Area. As of November 2012, Tulsa was home to one Fortune 1000 and two Fortune 500 companies: Dollar Thrifty Automotive Group, energy companies: ONEOK (#219), and The Williams Companies, Inc. (#342). [18]
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