Article
Article
Inductive voltage divider
Article By:
Deacon, T. A. Formerly, Division of Electrical Science, National Physical Laboratory, Teddington, Middlesex, United Kingdom.
Kibble, Bryan P. Formerly, Division of Electrical Science, National Physical Laboratory, Teddington, Middlesex, United Kingdom.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.341650
An autotransformer that has its winding divided into a number of equal-turn sections (usually 10) so that when an alternating voltage V is applied to the whole winding, the voltage across each section is nominally . The progressive voltages from one end to the section junctions are thus , 2V/10, , … , and . This voltage division can be realized with errors considerably less than 1 part per million of V, and such units therefore find wide use as standards of ac voltage ratio in the discipline of electrical measurements. See also: Transformer
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