Single-Phase, Two-Winding Transformers and Autotransformers/Variacs

Abstract

Inductors discussed in Chap. 6 mostly have one winding only and a relatively large air gap to make it a linear device, where current and voltage are proportional to each other: if one defines in the time domain
$$ {{\hbox{v}}_{\rm{L}}}({\hbox{t}}) = {\hbox{L}}\frac{{{\text{d}}{{\text{i}}_{\rm{L}}}{\text{(t)}}}}{\hbox{dt}}, $$
(7.1a)
then one can write in the phasor domain
$$ \tilde{\rm v}_{\rm{L}}(\hbox{t}) = {\rm j}\omega {\rm L}{\tilde{\rm i}}_{\rm{L}}(\hbox{t}), $$
(7.1b)
where the inductance L is constant.

Keywords

Permeability 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.University of ColoradoBoulderUSA
  2. 2.Department of Electrical and Computer EngineeringCurtin UniversityPerthAustralia

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