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Hello and welcome.

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Now let's talk about how the tests are transformed.

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As you can see transformer comes in different shapes but they all follow the very same symbol principle.

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Transformers are wires that have resistance.

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So no matter how many terminals there is if there is a resistance between each two pins depending on

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the type of transformer it means that the transformer is working.

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Now depending on how high or low this transistor is you can identify that primary and secondary coils

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or you can identify that a coil is burned out.

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Now the first step is metal indication for this thing.

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A good transformer.

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That primary one.

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And second that funding can be tested as follows.

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You need to set your multimeter to the resistance measuring for the indicator now place the two probes

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on these two terminals of the transformer all that run the thermal that you think are the primary terminals.

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Now the meter deflection indicating higher resistance.

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This means that this is the primary windowing.

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Now if the meter deflection indicates low resistance this means that this is the secondary window.

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So whenever you are testing to find out what cha the primary would and which are the secondary the ones

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with the high resistance are the primary landing and the ones with the low resistance are the secondary

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Wendy.

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Now if you want to know if the transformer one thing's primary or secondary are shorted or open you

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can use the symbol taste of resistance if the meter deflection indicating zero resistance in the meter.

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This means that our transformer is shorted Now if no meet up deflection indicating infinite resistance.

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So if the resistance went very very high to the maximum at the analog multimeter or the highest or infinite

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value in the digital multimeter This means that there is a cut in our transformer windowing.

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So how do you know which are the terminals for primary and secondary.

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Usually by copying the transformer name or number and finding this number and looking up on Google for

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the street or for that specific transformer you can easily identify these numbered terminals and know

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which are for the primary and which are for the secondary now.

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Next we are going to cover that as a store but for now what I need you to know is that every transformer

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has a different type of test but all depends on a very basic truth which is transformer is basically

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out that has the resistance.

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So the resistance is too high.

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This means that this is the primary one thing and if it is too low this means that it is a secondary

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one thing if it is zero resistance.

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This means that that specific Windowing is shorted if it is infinite resistance or in finite resistance

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it means that this lending is often.

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So this is the overall usually what I do is look up the transformer online to know the terminals and

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label them with numbers or letters then start that this by identifying the primary and the secondary

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then move on to test if there is a shorted or open one thing inside that transformer.

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I will add more resources on how to test a transformer to this section but that's it for now.

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Thanks for watching.

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This is Ashraf from educational engineering team.