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Amorphous steel is limited to foils of about 50 μm thickness. The mechanical properties of amorphous steel make stamping laminations for electric motors difficult. Since amorphous ribbon can be cast to any specific width under roughly 13 inches and can be sheared with relative ease, it is a suitable material for wound electrical transformer cores.
The stacking factor (also lamination factor or space factor [1]) is a measure used in electrical transformer design and some other electrical machines. It is the ratio of the effective cross-sectional area of the transformer core to the physical cross-sectional area of the transformer core. The two are different because of the way cores are ...
An amorphous metal transformer (AMT) is a type of energy efficient transformer found on electric grids. [1] The magnetic core of this transformer is made with a ferromagnetic amorphous metal. The typical material is an alloy of iron with boron, silicon, and phosphorus in the form of
Silicon steel has low hysteresis loss, and the laminated construction prevents eddy currents from flowing in the core, which dissipates power in the resistance of the steel. The efficiency of typical distribution transformers is between about 98 and 99 percent. [8] [9] Where large numbers of transformers are made to standard designs, a wound C ...
Later designs constructed the core by stacking layers of thin steel laminations, a principle that has remained in use. Each lamination is insulated from its neighbors by a thin non-conducting layer of insulation. [30] The transformer universal EMF equation can be used to calculate the core cross-sectional area for a preferred level of magnetic ...
In the U.S., the biggest polluters are often concentrated in underserved, mostly minority communities.
Worthington Steel is a publicly traded (NYSE:WS) steel processing company headquartered in Columbus, Ohio.Worthington Steel is an independent, intermediate processor of carbon flat-rolled steel in the United States, purchasing steel from integrated steel mills and mini-mills and custom processing it in areas such as type, length, width, thickness, shape and surface quality. [1]
From April 2009 to December 2012, if you bought shares in companies when William S. Thompson, Jr. joined the board, and sold them when he left, you would have a 22.1 percent return on your investment, compared to a 67.8 percent return from the S&P 500.