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Early generator interlock kits consisted of two sliding steel or plastic (depending on the brand) plates held together by three bolts and installed on the front cover of the home's breaker panel, however, some models made by Eaton (formerly Cutler-Hammer) and Siemens for panels manufactured by them install on the adjacent circuit breakers themselves and consist of a sliding arm for breakers ...
Doubly fed induction generator (DFIG), a generating principle widely used in wind turbines. It is based on an induction generator with a multiphase wound rotor and a multiphase slip ring assembly with brushes for access to the rotor windings. It is possible to avoid the multiphase slip ring assembly, but there are problems with efficiency, cost ...
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The resulting loaf-shaped haystacks can be up to 30 feet high, can weigh up to 20 tons, and can theoretically last up to five or six years. It was invented in the early 1900s and was first called the Beaverhead County Slide Stacker after its place of origin, the Big Hole Valley in Beaverhead County, Montana. The name was quickly shortened to ...
A homopolar generator is a DC electrical generator comprising an electrically conductive disc or cylinder rotating in a plane perpendicular to a uniform static magnetic field. A potential difference is created between the center of the disc and the rim (or ends of the cylinder) with an electrical polarity that depends on the direction of ...
The first Model A engine was completed earlier, October 20, 1927, and eventually installed in a 1928 Model A Fordor sedan, which Henry Ford gave to his friend, inventor Thomas A. Edison. There was immediate market demand for the Model A, but by January 1, 1928, just 5,275 Model A engines had been built – some not yet installed in a chassis ...
The earliest wooden rails were fixed to wooden sleepers by pegs through holes in the rail, or by nails. By the 18th century, cast iron rails had come into use, and also had holes in the rail itself to allow them to be fixed to a support.
Water scoop delivery pipe bracket A cast-iron support riveted on to the end of the delivery pipe and having a hole or bearing in its outer end for one of the trunnions of the water scoop. Water Scoop dipper A hinged extension or hood at the end of a water scoop. That portion of the scoop that goes into the water. Water Scoop dipper adjusting ...