quickfield simulation report · line-to-line short circuit determination of the transient currents...

QuickField simulation report

Line-to-line short circuit

Determination of the transient currents andelectromagnetic forces after a short circuit occurred

This automatically generated document consists of severalsections, which specify the problem setup and finite elementanalysis simulation results. Navigation links in the top of eachpage lead to corresponding sections of this report.

Problem description and QuickField simulation files:https://quickfield.com/advanced/line_to_line_short.htm

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Problem info Problem type: Transient Magnetics (integration time:

1.05999994277954 s.)

Geometry model class: Plane-Parallel

Problem database file names:

Problem: LtoLshort.pbm

Geometry: Ltolshort.mod

Material Data: Ltolshort.dms

Material Data 2 (library): none

Electric circuit: LtoLshort.qcr

Results taken from other problems:

none

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Geometry model

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Table 1. Geometry model statistics

With Label Total

Blocks 8 9

Edges 2 27

Vertices 0 26

Number of nodes: 17683.

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Electric circuit Coupled electric circuit

Circuit elements:

Voltage source Ua=110000*sqrt(2/3)*sin(360*50*t) [V]

Voltage source Ub=110000*sqrt(2/3)*sin(360*50*t+120)

[V]

Voltage source Uc=110000*sqrt(2/3)*sin(360*50*t+240)

[V]

QuickField block 'ph A (Al)'

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

QuickField block 'ph A (Fe)'

QuickField block 'ph B (Al)'

QuickField block 'ph B (Fe)'

QuickField block 'ph C (Al)'

QuickField block 'ph C (Fe)'

Resistor R1=100 [Ohm]

Resistor R2=100 [Ohm]

Resistor R3=100 [Ohm]

Inductor L1=0.23 [H]

Inductor L2=0.23 [H]

Inductor L3=0.23 [H]

Resistor R4=4 [Ohm]

QuickField block 'short-cir bridge'

Resistor ra=1 [Ohm]

Resistor rb=1 [Ohm]

Resistor rc=1 [Ohm]

Inductor La=0.01 [H]

Inductor Lb=0.01 [H]

Inductor Lc=0.01 [H]

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects There are following labelled objects in the geometry model

(Material Data file could contain more labels, but only

those labels that assigned to geometric objects are listed)

Blocks:

short-cir bridge

air

ph B (Al)

ph C (Al)

ph C (Fe)

ph A (Al)

ph B (Fe)

ph A (Fe)

Edges:

ground

zero potencial

Vertices:

Detailed information about each label is listed below.

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: block "short-cir bridge" There are (1) objects with this label

Relative magnetic permeability: mu_x=1, mu_y=1

Electric conductivity: sigma(T)=nonlinear (see Table 2 in

the "Nonlinear dependencies" section)

Electric conductivity reference temperature: T=t-1,K [K]

Voltage: U=0 [V]

Conductor's connection: in parallel

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: block "air" There are (2) objects with this label

Relative magnetic permeability: mu_x=1, mu_y=1

Current density: j=0 [A/m2]

Conductor's connection: in parallel

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: block "ph B (Al)" There are (1) objects with this label

Relative magnetic permeability: mu_x=1, mu_y=1

Electric conductivity: sigma(T)=33500000 [S/m]

Voltage: U=0 [V]

Conductor's connection: in parallel

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: block "ph C (Al)" There are (1) objects with this label

Relative magnetic permeability: mu_x=1, mu_y=1

Electric conductivity: sigma(T)=33500000 [S/m]

Voltage: U=0 [V]

Conductor's connection: in parallel

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: block "ph C (Fe)" There are (1) objects with this label

Relative magnetic permeability: mu_x=1, mu_y=1

Electric conductivity: sigma(T)=7700000 [S/m]

Voltage: U=0 [V]

Conductor's connection: in parallel

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: block "ph A (Al)" There are (1) objects with this label

Relative magnetic permeability: mu_x=1, mu_y=1

Electric conductivity: sigma(T)=33500000 [S/m]

Voltage: U=0 [V]

Conductor's connection: in parallel

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: block "ph B (Fe)" There are (1) objects with this label

Relative magnetic permeability: mu_x=1, mu_y=1

Electric conductivity: sigma(T)=7700000 [S/m]

Voltage: U=0 [V]

Conductor's connection: in parallel

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: block "ph A (Fe)" There are (1) objects with this label

Relative magnetic permeability: mu_x=1, mu_y=1

Electric conductivity: sigma(T)=7700000 [S/m]

Voltage: U=0 [V]

Conductor's connection: in parallel

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: edge "ground" There are (2) objects with this label

Magnetic potential: A=0 [Wb/m]

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Labelled objects: edge "zero potencial" There are (3) objects with this label

Magnetic potential: A=0 [Wb/m]

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Results Field lines

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Results Electric circuit currents

Circuit elements:

Ua. I=4621 [A]

Ub. I=4883 [A]

Uc. I=281.46 [A]

ph A (Al). I=4513 [A]

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

ph A (Fe). I=107.67 [A]

ph B (Al). I=4771 [A]

ph B (Fe). I=112.73 [A]

ph C (Al). I=275.93 [A]

ph C (Fe). I=5.535 [A]

R1. I=23.508 [A]

R2. I=238.99 [A]

R3. I=281.46 [A]

L1. I=23.508 [A]

L2. I=238.99 [A]

L3. I=281.46 [A]

R4. I=18.965 [A]

short-cir bridge. I=4640 [A]

ra. I=4621 [A]

rb. I=4883 [A]

rc. I=281.46 [A]

La. I=4621 [A]

Lb. I=4883 [A]

Lc. I=281.46 [A]

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Results Color map of Strength |H| [A/m]

232000

208800

185600

162400

139200

116000

92800

69600

46400

23200

0

Problem info Geometry model Labelled Objects Results Nonlinear dependencies

Nonlinear dependencies

Table 2. Electric conductivity

T [K] sigma [S/m]

-1.31 0.1

-0.31 1

-0.21 1.5

-0.11 2

-0.06 2.5

-0.05 3

-0.04 3.25

-0.03 3.375

-0.025 3.377

-0.024 3.378

-0.023 3.378

-0.022 3.379

-0.021 3.379

-0.0205 3.379

-0.02 3.38

-0.0195 3.385

-0.01925 3.388

-0.0191 3.388

-0.019 3.39

0 12300000000

0.04 12300000000

0.06 12300000000

0.07 12300000000

Problem info Geometry model Labelled Objects Results Nonlinear dependencies