almost doesn t influence on the flux. The bulging coefficient? X6 is found:
В
,
where? S - is the specific permeance,; in this case this is the specific permeance of coaxial cylinders;
??? - Is the total permeance, H.
Then the magnetic flux through the base is found:
;
;
After it, the induction of the base is found:
;
,
where Фbase - is the magnetic flux through the base, Wb.the graph of magnetic curves [5] the magnetic intensity is taken:
В
Now let s find magnetic potential drop:
;
, Hbase - is the magnetic intensity of the base,.
1.6. Determination of the magnetic motive force of the electromagnet
let s find the MMF
В
Umi - are magnetic potential drops, A;
Фi - is the magnetic flux, Wb;
?? i - is the permeance, H.
1.7. Results of the computation of electromagnet subcircuit parameters
1.7.1. - Parameters of the electromagnet subcircuits
? i Фi, mWbBi, THi, A/mUmi, AФ i /? i, A? xi , mxi, align = "justify">? 10.124 --- 1930.01- ? 110.124 --- 970.01- ? 24.540.554 --- 760.00025-
2. CALCULATION OF WINDING
2.1. Determination of final MMF of a winding, taking into account safety factor
task is to calculate the winding knowing next parameters: l = 250 mm; h = 80 mm; (Iw) = 1521.64 A; U = 36 V. Winding is made of copper. ? 0 = 4.3 ? 10-3 K-1 is the temperature coefficient of copper;? 0 = 1.62 ? 10-8?? m - is specific resistance of copper; q = 105 В° C - is permissible heat temperature of the winding. I determine finally MMF of a winding taking into consideration safety factor kЗ taken from the interval 1.3 ... 1.5.
В
, (Iw) - is the magnetic motive force of the electromagnet A;
2.2. Calculation of the winding parameters
The resistance of copper? q can be defined:
В
,? 0 = 1.62? 10-8?? m - is specific resista...
