Power Transformer?

[max]

Hi,

I need to design an Isolation power transformer with following specs

input      300v 400Hz
output    100v
power     500va

what is the core size (iron & silicon)
primary n secondary windings details

Regards

[Checksum8]

Maybe this calculator will help?

https://goodcalculators.com/transformer-calculator/

[PM3295]

Assuming you will be using silicon-steel laminates for your transformer design, below is a link dealing with this material.

"Among all the soft magnetic materials, silicon steel is still by far the most commonly used material with an annual worldwide production of ten million tons and a market share of 80% [30]. Silicon steel (3.2 wt% Si) is currently the most popular choice for motors and transformers because it offers balanced electrical and magnetic properties"

https://www.sciencedirect.com/science/article/pii/S0304885318331330

Some other things that you will need to consider in your design are:

1/ Allowable flux density (Tesla) in the core against core losses.
2/ Core volume needed for specified output power.
3/ Winding volume needed on the bobbin. (fill factor)
4/ Allowable temperature rise against maximum ambient operating temperature.
5/ Balance of core and copper losses.
6/ Current density allowed in winding wires. (will affect losses and temperature rise)

https://eepower.com/technical-articles/how-to-design-a-transformer-size-and-selection/#


  

[Sideshow Bob]

Hi,

I need to design a power transformer with following specs

input      300v 400Hz
output    100v
power     500va

Regards

The devil is in the detail. Like what is your application. And to what level do you need to comply with regulations. Do you need galvanic isolation. And what is your budget. 

[wellnerson1]

Dear MAX,
Please see the Chapter 7 - Power Transformer Design of the following Book.
Transformer and Inductor Design Handbook - 4th Edition - Colonel Wm. T. McLyman

[dR-mR]

The book the member wellnerson1 recommended is worth reading if you are interested in transformer design.

Link for the book,

[PM3295]

Here is a design that could meet your requirements.

Included is a simulation of the design using the extracted spice model of the transformer.

https://www.brown.edu/Departments/Engineering/Courses/ENGN1931F/mag_cores_dataAKSteel-very%20good.pdf