Good job. Two suggestions: after you finish the windings, soak the bobbin with the coils in varnish and allow it to dry completely before you insert the lamination. Otherwise the coils can make some noise. second: The lamination stack should be pressed in a vice and bolted very tightly otherwise some magnetostriction hum will come.
@@mujianto1420 aku masalah bikin trafo mulai ukuran kecil 1a - 15a aku bisa ngitung cara rumusnya. Klo ini aku belum pernah bikin trafo memakai gabungan kayak gitu mas broo. Nanti akan ku coba beli trafo dipasaran 5 biji mau aku gabungin juga jadi satu dirangkai ulang.
if m not wrong, each tranformer is a step up 12v to 220v. Just connect 2 primary of them in series to make 24v and connect 2 secondary of them in parallel. No need to rewire
It's just smaller high frequency transformer with feedback winding If you don't know you shouldn't be messing lol and there's loads of videos about it... FFS you lazy fucker
Nice work.!! But it gives 32-0-32 instead 32 0 35... why ?? Coz u added 38 (362+30) extra in primary but not in secondary... use extra round in secondary also.. in order to get 35 0 35 in working amp it should be 37 0 37 without load...
Amigo, falo aqui de Fortaleza CE. acompanho seu canal e gostaria de tirar uma duvida. Preciso para meu projeto de amplificador um trafo com as seguintes características. Primário: 110/220V. Secundários: 35V 0 35V 5A e 15V 1A. Quais seriam os cálculos do trafo?
Пропитка слоёв на таком каркасе обязательна. Потому что, очень быстро произойдёт пробой изоляции между витками. Кто разбирается в этом тот всё это знает. Удачи
Además para tanta "potencia" uso alambre muy fino, y tenés como desventaja la reglutancia magnética (distancia que recorre el magnetismo) así que además de menos potencia menor rendimiento.. hubiera sido mejor usarlos con primarios en paralelo y hacer un arreglo serie en los secundarios.
But according to design principle you have to avoid making stack height to width ratio > 2. I have found that the square core has the best fill factor and most efficiency. Though you could make upto 1.5 ratio to match the desired VA of transformer. These kinds of design makes low efficiency transformers with more iron losses. Better use bigger core to increase power handling capacity.
You should add insulation between layers, shortcircuit between layers is common problem in transformers even with good enamel on copper. Ofcourse this insulation gonna incerase Your transformer stray capacience but its worth to add it if frequency is low (when You made it by hand coz You have no option to vaccum impregnate it) Also Your insulation tape looks like masking tape... never use it to insulate windings.
There's a formula for the number of turns and wire dia , for primary and secondary windings on a transformer. Not something you would really want to mess around with , unless you understand the basic principles of electricity.
И к тому же, так как он мотает, он не может натянуть проволоку как положено, из за чего при работе трансформатора возникает микровибрация и со временем изоляция на проволоке сотрётся и произойдёт межвитковое замыкание. Ляпов тут у него вагон, но задумка не плохая.
What about using the stator iron core of an electric motor? With that you get a toroidal iron core. All you would need is to cut off the edges of the innerside grooves where the coils are installed. That way you will have a ring core which you can use for a toroidal transformer which is known to be better than other transformers.
The laminations are facing the wrong direction and also the inner core of a induction motor is not suitable for a transformer because of the actual material used for it. Remember a transformer is not as simple as a lug of iron and copper wrapped around it
Wrong calculations ! What is the watt's of it? He will gets 140 watts .some of the input energy is consumed by the device itself as it converts the energy into another form, typically heat, and that energy is lost.
I thought that the transformer formula was in metric, such as core square CM. Also gauge of wire formula is as 700circ mils times current times duty cycle. If power not on all times during time period , then the gauge wire can be smaller. circ mils times % duty cycle. Also, if choosing a LARGER core than required, then there is less turns that have to be wound on bobbin because of formula. Assembling a low frequency transformer with E and I laminations can be interleaved, or separated , so as the top I set comes off, so as bobbin quickly removed for rewinding. The separate laminations type requires strap over unit to hold together. The old style radio chokes were like that method.
