Explain core loss

[Sudalai]

Hello!
I want your help for core losses on how to calculate core loss on a toroid core?

 

[marcusl]

Loss is a property of the core material. Look at the manufacturer’s data sheet, and also look at the application note on how to compute losses.

 

[berkeman]

Hello!
I want your help for core losses on how to calculate core loss on a toroid core?

It sounds like this is related to your other two recent threads about transformers:

I have 150 x 100 x 60 M4 grade toroid core and same grade slit coil, I need to 180 x 100 x 60 in my design purpose.i would like to add OD 20 mm. my suspicion is a slit that can be added should be on the same grade?

You have not responded to my questions in your thread with the above post. You really need to give us much more information about this project if we are to help you.

What frequency range will your transformer operate within? What voltages, currents, powers, temperature range, etc.? Can you clarify the size and materials and construction details? What do the source and load look like for this transformer? How reactive are they?

There are several contributions to core losses (and winding losses), depending on the answers to the above questions. If you want our help with this, please provide lots more information. Thank you.

 

[Sudalai]

Sorry for the inconvenience, I need 4000 voltage for in our testing purpose but I have single phase variac 240 v so I would like to design step up 230: 4000v I am is a beginner for designing so I am struggling that

 

[berkeman]

Sorry for the inconvenience, I need 4000 voltage for in our testing purpose but I have single phase variac 240 v so I would like to design step up 230: 4000v I am is a beginner for designing so I am struggling that

That sounds a bit like a dangerous project for somebody who is a "beginner". What experience do you have working with AC Mains voltages like 230Vrms? What about high voltages like 4000V? Are you working with anybody who does have experience with those voltages and how to keep the project safe?

What frequency range will your transformer operate within? What voltages, currents, powers, temperature range, etc.? Can you clarify the size and materials and construction details? What do the source and load look like for this transformer? How reactive are they?

We still need answers to these questions in order to try to help you. Thank you.