whats the purpose of a isolation transformer?

Answer 1

A transformer is called an isolation transformer when the circuit it's being used in requires that there is no physical connection between the primary and the secondary windings. The primary windings and the secondary windings are electrically separated (but magnetically coupled).

Sometimes they use an isolation transformer to reduce the chance of electric shock in appliances. Or, so that you don't get shocked when you touch two different appliances at once. But there are many other applications of an isolation transformer. A regular transformer with separate primary and secondary windings can be used as an isolation transformer. The name comes from how it's used in the circuit.

Answer 2

The transformers are encompassed two or more coils or ferromagnetic core named as windings. If any electrical changes are being made in the main winding then it generates an intermittent magnetic field in the core. Consequently, this reproduces the fluctuation and the field from side to side of the secondary windings. As a result this in turn stimulates alternating electrical energy in all of the secondary coils. If near an electric current there is one more wire is present and that is helping to alter power then the voltage will cause to flow into that wire as enthrallment alteration. There are many applications under the Isolation transformers. Isolation transformers separate circuits into main and secondary windings. This type of transformers are also making use to prevent capacitance that increases in linking the main and secondary and that can cause high frequency sound. Through inducing the voltage from one winding to another winding a transformer converts one level of electrical energy or voltage to another. The circuits of input and output are actually separated because the coils don’t be in contact.


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Answer 3

As the title suggests the purpose is to isolate the primary and secondary circuits.
A typical use is to provide no return to earth between any of the secondary windings.
This is to protect people, no return path means no circuit to make with your body, should you come into contact with one pole of the secondary.

Answer 4

The word 'isolate' refers to electrical earth. These are used to make a circuit safer for the user, as there is nowhere for any earth fault current to go.

Answer 5

it isolates the circuit electronically

also transformers often raise or lower voltages too

Answer 6

Safety.
Voltage produced by the secondary windings 'floats'. Unlike incoming mains, it is not pegged to earth so one can touch either end of the windings with impunity. 230v will exist between the output terminals but there will be no reading between earth and either single terminal.

Answer 7

Electrical? Then it would be where the secondary winding has no electrical contact at all with anything on the primary side.

Answer 8

Vrr JT3 couldnt have answered it better