auto transformer!

auto transformer

Comprehensive Analysis

1) "Auto" -- As to auto transformer 1au·to Pronunciation: 'o-(")tO, 'ä- Function: noun Inflected Form(s): plural autos : AUTOMOBILE Pronunciation Symbols Auto can be: An automobile An auto rickshaw Short for automatic A brand of car, Auto from France A form of Portuguese dramatic play An automatic variable (which may be defined in C using the "auto" keyword) autograph self writing ..." 2) "Transformer" -- As to auto transformer trans·form·er Pronunciation: tran(t)s-'for-m&r Function: noun : one that transforms; specifically : a device employing the principle of mutual induction to convert variations of current in a primary circuit into variations of voltage and current in a secondary circuit Pronunciation Symbols

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Three-phase pole-mounted step-down transformer. Three-phase pole-mounted step-down transformer showing input and output cables. Note oil cooler. A historical Stanley transformer.

A transformer is an electrical device that transfers energy from one circuit to another by magnetic coupling, without requiring relative motion between its parts. A transformer comprises two or more coupled windings, and, in most cases, a magnetic core to concentrate magnetic flux. A changing voltage applied to one winding creates a time-varying magnetic flux in the core, which induces a voltage in the other windings.

The transformer is one of the simplest of electrical devices, yet transformer designs and materials continue to be improved.

Transformers come in a range of sizes from a thumbnail-sized coupling transformer hidden inside a stage microphone to huge gigawatt units used to interconnect large portions of national power grids. All operate with the same basic principles and with many similarities in their parts.