transformer

(redirected from Auto Transformer)
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia.
Related to Auto Transformer: Current transformer, Isolation transformer

transformer

 [trans-for´mer]
an induction apparatus for changing electrical energy at one voltage and current to electrical energy at another voltage and current, through the medium of magnetic energy, without mechanical motion.
step-down transformer one for lowering the voltage of the original current.
step-up transformer one for raising the voltage of the original current.

transformer

[-fôr′mər]
Etymology: L, transformare, to change shape
an electric apparatus that changes alternating current of one voltage into a different voltage of the same frequency.

transformer,

n an electrical device that increases or reduces the voltage of an alternating current by mutual induction between primary and secondary coils or windings.
transformer, auto-,
transformer, Coolidge filament,
n.pr a step-down transformer that reduces line voltage of 110 volts to 12 volts, which in turn heats the tungsten filament of the Coolidge tube for the production of electrons.
transformer, step-down,
n a transformer in which the secondary voltage is less than the primary voltage.
transformer, step-up,
n a transformer in which the secondary voltage is greater than the primary voltage.

transformer

an induction apparatus for changing electrical energy at one voltage and current to electrical energy at another voltage and current, through the medium of magnetic energy, without mechanical motion.

transformer fluid
may cause poisoning due to its polychlorinated biphenyl content.
step-down transformer
one for lowering the voltage of the original current.
step-up transformer
one for raising the voltage of the original current.
References in periodicals archive ?
Integrated into the thin package are four isolation transformers and four common mode chokes, with an option for four auto transformers.
Is a 44 year old manufacturer of Uninterruptible Power Supplies, Power Line Conditioners, custom linear and switch mode power supplies, Variac auto transformers and voltage regulators and invertors.
Constant Power, with over 35 years experience in the power industry, manufactures uninterruptible power supplies, power line conditioners, custom and military linear and switchmode power supplies, Variac auto transformers, voltage regulators and inverters.