These coils need to be pervaded with varnish and fastened together, because while transformer working wires vibrates under the influence of a magnetic field, and their insulation can become damaged over some time. Really the thickness of the varnish coating is very small, so it does not impair the thermal conductivity from the coils to the oil environment.
@Supervisor000 Thank you Sir for ansewering back.Ok I admit.But I have another thing to say that is if the coil wire is so loose during winding process and if the transformer load varies during usage it is a possbility that coil wire shakes.Another thing is the coils are isolated and are bandad togther porperly no reason to become loose over time. Iron sheets are subject to shake than coils.Any way thank you again.
Exactly. Actually, you try to get every little air bubble out of the coils after the transformer has been filled with oil. Ideally even by applying a vacuum. This is now impossible because the oil is no longer able to penetrate into the interior of the coils and between the layers of the winding due to the varnish impregnation. In my opinion an absolute design flaw.
What I don't understand: Why were the high-voltage coils also dipped in the varnish? Actually, you try to get every little air bubble out of the coils after the transformer has been filled with oil. Ideally even by applying a vacuum. This is now impossible because the oil is no longer able to penetrate into the interior of the coils and between the layers of the winding due to the varnish impregnation. In my opinion an absolute design flaw.
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Amazing 😍
Great job and video! Thanks for sharing!
Quem foi que projetou esta parafernália pela primeira vez?
nice job so much paper tape hehe lv to seen how it worked though 😎😎
No need to varnish the coils as they are to be cooled by oil or may be dissoloved by oil and make the oil not smooth.
These coils need to be pervaded with varnish and fastened together, because while transformer working wires vibrates under the influence of a magnetic field, and their insulation can become damaged over some time.
Really the thickness of the varnish coating is very small, so it does not impair the thermal conductivity from the coils to the oil environment.
@Supervisor000 Thank you Sir for ansewering back.Ok I admit.But I have another thing to say that is if the coil wire is so loose during winding process and if the transformer load varies during usage it is a possbility that coil wire shakes.Another thing is the coils are isolated and are bandad togther porperly no reason to become loose over time. Iron sheets are subject to shake than coils.Any way thank you again.
Exactly. Actually, you try to get every little air bubble out of the coils after the transformer has been filled with oil. Ideally even by applying a vacuum. This is now impossible because the oil is no longer able to penetrate into the interior of the coils and between the layers of the winding due to the varnish impregnation. In my opinion an absolute design flaw.
What I don't understand: Why were the high-voltage coils also dipped in the varnish? Actually, you try to get every little air bubble out of the coils after the transformer has been filled with oil. Ideally even by applying a vacuum. This is now impossible because the oil is no longer able to penetrate into the interior of the coils and between the layers of the winding due to the varnish impregnation. In my opinion an absolute design flaw.
Amazing 😍