What is transformer?

  • (noun): An electrical device by which alternating current of one voltage is changed to another voltage.

Transformer

A transformer is a power converter that transfers electrical energy from one circuit to another through inductively coupled conductors—the transformer's coils. A varying current in the primary winding creates a varying magnetic flux in the transformer's core and thus a varying magnetic field through the secondary winding. This varying magnetic field induces a varying electromotive force (EMF), or "voltage", in the secondary winding. This effect is called inductive coupling.

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Some articles on transformer:

Transformer - Applications
... A major application of transformers is to increase voltage before transmitting electrical energy over long distances through wires ... (and therefore low-current) form for transmission and back again afterward, transformers enable economical transmission of power over long distances ... Consequently, transformers have shaped the electricity supply industry, permitting generation to be located remotely from points of demand ...
Constant Voltage Speaker System - Loudspeaker Connection
... In a constant voltage speaker system, each loudspeaker's step-down transformer can be designed for a single power level or it can have multiple taps, one ... Transformers with various taps allow the installer to adjust the sound pressure level up or down at an individual loudspeaker ... To minimize power losses, the wires connecting the loudspeaker to the step-down transformer are kept as short as possible ...
Electrical Machine - Transformer
... A transformer is a static device that converts alternating current from one voltage level to another level (higher or lower), or to the same level, without changing the frequency ... A transformer transfers electrical energy from one circuit to another through inductively coupled conductors—the transformer's coils ... electric current in the first or primary winding creates a varying magnetic flux in the transformer's core and thus a varying magnetic field through the secondary winding ...
Topology (electrical Circuits) - Graph Theory - Mutual Coupling
... there is no means of explicitly representing mutual inductive couplings, such as occurs in a transformer, and such components may result in a ... An example would be a transformer earthed on both the primary and secondary side ... The transformer still functions as a transformer with the same voltage ratio but can now no longer be used as an isolation transformer ...
London Drugs Ltd. V. Kuehne & Nagel International Ltd. - Background
... Kuehne Nagel was storing a transformer owned by London Drugs valued at $32,000 ... limitation of liability clause which limited liability for damage to the transformer to $40 ... Two employees were moving the transformer with a forklift and negligently dropped it ...

Famous quotes containing the word transformer:

    Man, became man through work, who stepped out of the animal kingdom as transformer of the natural into the artificial, who became therefore the magician, man the creator of social reality, will always stay the great magician, will always be Prometheus bringing fire from heaven to earth, will always be Orpheus enthralling nature with his music. Not until humanity itself dies will art die.
    Ernst Fischer (1899–1972)