WTransformer
WAustin transformer
WAutotransformer
WBalun
WBuchholz relay
WBuck–boost transformer
WBushing (electrical)
WCapacitor voltage transformer
WCenter tap
WCircle diagram
WCurrent transformer
WDelta-wye transformer
WDistribution transformer
WFlyback transformer
WGrounding transformer
WGrowler (electrical device)
WHigh-leg delta
WHigh-voltage transformer fire barriers
WHybrid coil
WInduction coil
WInduction regulator
WIsolation transformer
WLinear variable differential transformer
WMagnet wire
WNeon-sign transformer
WOpen-circuit test
WOudin coil
WPad-mounted transformer
WPlanar transformer
WPolarity (mutual inductance)
WPolychlorinated biphenyl
WQuadrature booster
WResonant inductive coupling
WRotary transformer
WShort-circuit inductance
WShort-circuit test
WSimulation of transformer
WSynchro
WTap changer
WTesla coil
WToroidal inductors and transformers
WTransformer types
WTrembler coil
WZaporozhtransformator
WZigzag transformer