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# Something about 50Hz 60Hz transformer

I hear comments on higher losses at the higher frequency. Derate this, derate that. All this derating talk. Comment after comment. I took some Tempel Steel M6 watts loss curves and turned them into their exponential expressions using log10 juggling to give an expression k*B^n1*f^n2. The equation is 6.1361E-6*(f)^1.6273*B^1.7784. f is in Hz, B is in kGauss. I used the 4kG curve and the 1 kG curve to derive the equation and then tried the equation out at 13.5kG and several frequencies, and it was accurate. From 50 Hz to 60 Hz, if you just plug the 50 Hz and 13.5 kGauss into the equation, and then try the equation with 60 Hz and 50/60 *14 or 11.25 kGauss, W/lb will be .365 and .355, respectively. ===>less watts loss on the core at 60Hz. What else happens? Plz Calculate (8 + 2) =
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