9 0,001 0,01 0,1 1 10 0,01 0,1 1 10 Bpeak (T) He . [As/cm] B(H) curves for 97%Iron - 3%Silicon 0,3mm toroidal cut cores - Low quality B(T) BS30 L[cm]<20 B(T) BS30 20<L[cm]<40 B(T) BS30 40<L[cm]<80 B(T) BS30 L[cm]>80 Dimensional tolerances for toroidal cut cores A A1 A2 B1 B2 C D 40 - 100 ± 2 -3 ± 2 -3 ± 0,5 +1 100 - 200 ± 2,5 -4 ± 2,5 -4 ± 0,7 +1,5 200 - 320 ± 3 -5 ± 3 -5 ± 1 +2 320 - 500 ± 4 -6 ± 4 -6 ± 1 +2,3 500 - 800 ± 5,5 -7 ± 5,5 -7 ± 1,5 +3 > 800 ± 7 -8 ± 7 -8 ± 1,5 +4 Magnetic guarantees for toroidal cut cores Fe-Si Guarantee Thickness [mm] Frequency [Hz] Effective magnetic field [As/cm] Test values 10 ≤ Lm [cm] < 20 20 ≤ Lm [cm] < 40 40 ≤ Lm [cm] < 80 Lm [cm] ≥ 80 Bpeak BS30 0,3 50 0,03 0,02 0,022 0,0235 0,0245 T 0,3 0,51 0,67 0,79 0,87 T 10 1,68 1,71 1,725 1,74 T BS31 0,3 50 0,03 0,044 0,056 0,064 0,069 T 0,3 0,65 0,92 1,17 1,35 T 1,71 1,75 1,78 1,8 T B(H) curves f r 97% iron - 3% Silicon o,3mm t roidal cut cores - BS30 B(H) curves for 97% iron - 3% Silicon o,3mm toroidal cut cores - BS31 0,01 0,1 1 10 0,01 0,1 1 10 Bpeak (T) He . [As/cm] B(H) curves f r 97%Iron - 3%Silicon 0,3mm toroidal cut cores - High quality B(T) BS31 L[cm]<20 B(T) BS31 20<L[cm]<40 B(T) BS31 40<L[cm]<80 B(T) BS31 L[cm]>80 B1 A = NOMINAL INSIDE Ø B2 A2 A1 H D C
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