Simulation of electric and magnetic fields using FEMM - FH Aachen ...

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2.2 Cable2 Assume we have a non-concentric cable. The inner cable is 3mm aside from the center. At the inner cable a voltage of 130kV (compare to the ground) is applied. (Type: AC Frequency: 50Hz DC=0V) Layer 1 Layer 2 σr (S/m) 10 1 Table 2-2 Values of the electrical conductivity Here we will draw the field profile E=f(r) of this cable as well as a plot of E=f(r). 2.2.1 Create a new file. “File”→“New”→ “Current Flow Problem” 2.2.2 Set problem definition. Press Menu: “Problem”. Change problem type to “Planar” and units to “centimeters”. 2.2.3 Create a new model Draw three concentric circles with given radii. To draw a set of non-concentric circles, first we need to have three concentric circles using function ”Operate on arc Segments”. First we should mark some nodes using ”Operate on nodes”, then we switch to function . Select 2 nodes one by another to draw an arc segments in between, and then we will have half of the circle. Now we need the other half so we select these 2 nodes again but this time change the selection order. In this way, we will be able to make all three circles. Figure 2-12New model step 1
Figure 2-13 New model step 2 2.2.4 Define conductor properties First we need to calculate the voltages on each shell. Voltage on Layer 1 is the total voltage (130kV) from center of cable to the ground. Voltage on Layer 2 is U2.The rest layer is Ground Figure 2-14 Voltage on layer 1 Figure 2-15 Gnd Equation 6
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Simulation of electric and magnetic
Page 3 and 4:
Acknowledgments I would like to exp
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1.4.1 Create a new file. ..........
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3.2.1 Create new file .............
Page 9 and 10: Current flow procedures: 1. Create
Page 11 and 12: Problem Type: Axisymmetric Length U
Page 13 and 14: Figure 1-7 Voltage on layer 1 Groun
Page 15 and 16: 1.1.7 Generate mesh and run FEA Run
Page 17 and 18: Figure 1-18E,t plot And this plot c
Page 19 and 20: 1.2.2 Set problem definition. Press
Page 21 and 22: But here we have a non-symmetric ca
Page 23 and 24: 1.2.6 Define conductor and material
Page 25 and 26: Figure 1-38 Contour Then select E,
Page 27 and 28: 1.3.3 Create a new model We treat t
Page 29 and 30: 1.3.5 Set up the properties of mate
Page 31 and 32: Figure 1-53 Result 1.3.9 Plot field
Page 33 and 34: Inner cable 2*ri=10 mm Flange(Flans
Page 35 and 36: Figure 1-62 Conductor properties Fi
Page 37 and 38: Figure 1-67Contour Use function to
Page 39 and 40: 1.5.2 Set problem definition. Press
Page 41 and 42: 1.5.6 Define conductor properties T
Page 43 and 44: Figure 1-83D,t plot 1.5.11 Comparis
Page 45 and 46: And this time it seems to be smooth
Page 47 and 48: The outer shell is connected with g
Page 49 and 50: 1.6.8 Plot field values Draw E and
Page 51 and 52: 1.7.3 Create a new model Draw 3 seg
Page 53 and 54: 1.7.8 Display results Figure 1-111R
Page 55 and 56: 2. Electrical Field Before we deal
Page 57 and 58: 2.1.5 Define conductor properties S
Page 59: Draw the contour from (0, 0) to (14
Page 63 and 64: σr=1 for schicht2 Figure 2-19Prope
Page 65 and 66: 2.2.9 Plot field values Choose cont
Page 67 and 68: Figure 3-2 Problem definition 3.1.3
Page 69 and 70: 3.1.7 Define circuits. Select menu
Page 71 and 72: 3.1.10 Associate Properties with bo
Page 73 and 74: Click on button . Then in the dialo
Page 75 and 76: 3.2 Air gap Here we have a square c
Page 77 and 78: Figure 3-24 Circuit 3.2.8 Place Blo
Page 79 and 80: Figure 3-29 Mesh 3.2.12 Analysis re
Page 81 and 82: 3.2.13 Plot Field Values Draw conto
Page 83 and 84: List of figures Figure 1-1 Create a
Page 85 and 86: Figure 1-89 New model .............
Page 87: List of tables Table 1-1 Values of
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Simulation of electric and magnetic fields using FEMM - FH Aachen ...

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