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The quiet life

2014-04-07 16:44:00| Transmission & Distribution World

ABB's ultralow-noise power transformers Everyone is familiar with the characteristic hum that transformers produce. In sparsely populated areas, this drone will disturb few, but in urban areas it can be of concern and can even fall foul of local noise level regulations. Probably the strictest noise ordinance in the world is enforced in New York City, so, when ABB recently produced a number of transformers for the local power utility, these had to be very quiet indeed. This required a significant effort by ABB to develop an understanding of the processes involved in sound generation, transmission and radiation in transformers. Such knowledge has enabled ABB to supply successfully low- and ultralow- noise transformers to many major cities around the world. read more

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Category:Electronics and Electrical

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