Question

3. The plot shown in figure P3 below relates the operating frequency to the total power losses (due to hysteresis and eddy currents combined) per kilogram of core mass for a particular material used in laminated transformer construction. As indicated in figure P3, the material is 0.356 [mm] thick electrical sheet steel. Compute the total core power loss, $P_e$, for a core constructed in an El configuration with the material represented by the plot if: a. the total core volume is $V_e = 0.009$ [$m^3$], b. the stacking factor is $SF = 0.90$, c. the M-36 sheet steel density is $d = 7.70$ [$g/cm^3$], d. the transformer operates at a frequency of $f = 100$ [Hz], and e. the maximum flux density in the core is $B_{max} = 0.7$ [T]. $P_c$ W/kg 20 10 1 0.1 10 20 50 100 200 500 1000 2000 5000 10,000 $f$, Hz $B$, tesla 1.0 0.7 0.5 0.3 0.1 100 Total Core Losses for M-36, 0.356 [mm] Electrical Sheet Steel Figure P3

          3. The plot shown in figure P3 below relates the operating frequency to the total power losses (due to
hysteresis and eddy currents combined) per kilogram of core mass for a particular material used in
laminated transformer construction. As indicated in figure P3, the material is 0.356 [mm] thick electrical
sheet steel. Compute the total core power loss, $P_e$, for a core constructed in an El configuration with the
material represented by the plot if:
a. the total core volume is $V_e = 0.009$ [$m^3$],
b. the stacking factor is $SF = 0.90$,
c. the M-36 sheet steel density is $d = 7.70$ [$g/cm^3$],
d. the transformer operates at a frequency of $f = 100$ [Hz], and
e. the maximum flux density in the core is $B_{max} = 0.7$ [T].
$P_c$ W/kg
20
10
1
0.1
10
20
50 100
200
500 1000 2000 5000 10,000
$f$, Hz
$B$, tesla
1.0 0.7 0.5 0.3
0.1
100
Total Core Losses for M-36, 0.356 [mm] Electrical Sheet Steel
Figure P3

3. The plot shown in figure P3 below relates the operating frequency to the total power losses (due to
hysteresis and eddy currents combined) per kilogram of core mass for a particular material used in
laminated transformer construction. As indicated in figure P3, the material is 0.356 [mm] thick electrical
sheet steel. Compute the total core power loss, Pe, for a core constructed in an El configuration with the
material represented by the plot if:
a. the total core volume is Ve = 0.009 [m^3],
b. the stacking factor is SF = 0.90,
c. the M-36 sheet steel density is d = 7.70 [g/cm^3],
d. the transformer operates at a frequency of f = 100 [Hz], and
e. the maximum flux density in the core is Bmax = 0.7 [T].
Pc W/kg
20
10
1
0.1
10
20
50 100
200
500 1000 2000 5000 10,000
f, Hz
B, tesla
1.0 0.7 0.5 0.3
0.1
100
Total Core Losses for M-36, 0.356 [mm] Electrical Sheet Steel
Figure P3

Added by Eugene R.

Question

Please give Ace some feedback