kool mu torroid Flux density value?

[cupoftea]

Hi ,
Do you agree that the Mag Inc Kool mu torroid 0076076A7 has a B value of 0.455 when it has 15.4A of current flowing in it?
....This is for 2 stacked 0076076A7 torroids, with 42 turns around the 'couplet'.
Working as attached.

Mag Inc Kool mu torroid 0076076A7 datasheet

https://www.mag-inc.com/Media/Magnetics/Datasheets/0076076A7.pdf

The calculation has been done using the "bit by bit" method...... that is, increment H by even , small steps, calculate dH as you go, then dB = uo.ur.dH........then accumulate all the little dB values and read off what you have for B(total) at 15.4A.

(BTW, ur is recalculated at every H value...from the reluctance)

 

[FvM]

To get the answer directly, you'll review the DC magnetization curve in Magnetec databook. I read a B value of about 0.47 T.