Low voltage transformer
A transformer is an electrical device widely used for transferring energy of an alternating current in the primary winding to that in one or more secondary windings. It typically contains two or more electrical circuits comprising primary and secondary windings, each made of a multi-turn coil of electrical conductors with one or more magnetic cores coupling the coils by transferring a magnetic flux therebetween. Increasingly, modern day appliances are constructed using low voltage transformers for many purposes including as lighting transformers or to supply power to electronic components. Electrical power is usually provided to residential homes at a line voltage of 120 volts AC by a public electrical utility. Inside of the home, certain applications require a reduction from the standard household current of 120 volts to the appropriate lighting requirements, generally 12 or 24 volts. This reduction, or step-down, in voltage is typically accomplished by means of a low voltage electrical transformer. One particular application for such transformers is in landscape lighting systems, which typically employ low-voltage landscape lighting fixtures. Environmental lighting systems typically operate by providing low voltage to a number of lamps which are located to enhance various features in the environment. The low voltage, usually 12 volts, is produced by one or more transformers that are connected to a 120 VAC source and positioned within the area covered by the lighting system in a way to ensure a stable voltage supply to the lamps.
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