How does it work the transformer and generator?

Answer 1

A transformer use a varying voltage on one coil to impress a voltage on another coil by induction. Transformers cannot pass DC as a direct current does not have a varying voltage level. A power transformer connected to a wall outlet receives 120Volts AC (alternating current) at 60 Hertz (cycles per second) into it's primary coil. If it's a step down transformer with a 10-1 turns ratio a 12 VAC voltage will appear at the terminals of the secondary winding on the transformer. The windings (coils) are wound around an iron core to provide a circuit for the magnetic field and improve transformer efficiency. There are many different types of transformers in use, the type is dictated by the application the transformer is being used in. The theory of operation of Transformer

Answer 2

The transformer is based on two principles: firstly, that an electric current can produce a magnetic field (electromagnetism) and secondly that a changing magnetic field within a coil of wire induces a voltage across the ends of the coil (electromagnetic induction). Changing the current in the primary coil changes the magnitude of the applied magnetic field. The changing magnetic flux extends to the secondary coil where a voltage is induced across its ends.

A transformer is a device which is use to convert high alternatic voltage to a low alternatic voltage and vice versa.

WORKING PRINCIPLE

Transformer works on Faraday laws of electromagnetic induction.As the transformer is static device,the induction is static based on the concept of mutual induction.''Whenever a conductor links the changing flux an e.m.f. is induced in that conductor''. This induced e.m.f. is proportional to the rate of change of flux linkages and number of turns.

Transformer works on the principle of mutual induction of two coils. When current in the primary coil is changed the flux linked to the secondary coil also changes. Consequently an EMF is induced in the secondary coil.

CONSTRUCTION

A transformer consists of a rectangular core of soft iron in the form of sheets insulated from one another. Two separate coils of insulated wires, a primary coil and a secondary coil are wound on the core. These coils are well insulated from one another and from the core. The coil on the input side is called Primary coil and the coil on the output side is called Secondary coil.

Answer 3

There is no such thing. All transformers are AC-AC. If the unit supplies DC, it has a rectifier attached to the AC output (it is then a power supply, not a transformer). However, if what was meant was a plug-in power-supply, not a transformer, unless the transfomer and any dedicated equipment, were very cheap, it is highly likely that it is a switched-mode power-supply. They are near universally used for electronic equipment costing more than a few $10's and they are not and do not contain transformers. If so, please ignore all comments about PSU's above. Switched-mode power-supplies are moderately complicated electronic devices. I think what the question refers to are the small plug in power-supplies used to charge DC devices. The primary side of the transformer is the side that plugs into the wall. The secondary side of this transformer is still AC but reduced to the voltage that is required by the device that it plugs into. At the lower voltage side of the transformer it is connected into a half wave bridge or a full wave bridge rectifier. This rectifier changes the AC into DC. This rectifier is contained in the same housing as the step down transformer. From the output of the rectifier, a cord with a plug on its end is attached that connects into your device.

Answer 4

In a transformer, a primary coil induces magnetic flux in the transformer core. By the same principle, a secondary coil picks up current on the other side. The turn ratio affects the current conversion; some flux is lost as leakage flux, as not all paths coincide with both coils.

Answer 5

transformers have two types of coils ,one is primary and the other is secondary coils.when an a.c voltage is supplied to the primary coil,flux is induced in the primary coil.these fluxes links the secondary coils and an emf is induced in the secondary coils.generally transformers are of two types,step up and step down transformers.

Answer 6

Any transformer works in the priciple of Electromagnetic induction