LAKU - Kurzschluss (3 phasig) / Short Circuit (3 phase)

Short Circuit Calculation according to IEC 73/90 (VDE 0102)
Part 4: Examples for the calculation of short-circuit currents
High-voltage testnetwork 380 kV / 110 kV / 30 kV


   Network

   Calculation Results

   Download NETDRAW file: iec_3pol.ndw
 


1  Network 




2  Calculation Results 

The calculation results for the testnetwork calculated with LAKU short-circuit calculation are shown in the following tables. According to IEC the deviation of the results should be smaller than ±0.02 %.

Table 2.1: Results Ik"

Fault
location

Un
kV

Ik" (IEC)
kA

Ik" (LAKU)
kA

deviation
%

BUS1

380

40.6447

40.645

+0.000738

BUS2

110

31.7831

31.783

-0.000315

BUS3

110

19.6730

19.673

0.0

BUS4

110

16.2277

16.228

0.001849

BUS5

110

33.1894

33.189

-0.001205

BUS6

10

37.5629

37.563

+0.000266

BUS7

10

25.5895

25.590

+0.001954

BUS8

10

13.5778

13.578

+0.001473

Table 2.2: Results ip (equivalent frequency method)

Fault
location

Un
kV

ip (IEC)
kA

ip (LAKU)
kA

deviation
%

BUS1

380

100.5677

100.568

+0.000298

BUS2

110

80.6079

80.608

+0.000124

BUS3

110

45.8111

45.811

-0.000218

BUS4

110

36.8427

36.843

+0.000814

BUS5

110

83.4033

83.404

+0.000839

BUS6

10

98.1434

98.143

-0.000406

BUS7

10

51.6899

51.690

+0.000194

BUS8

10

36.9227

36.922

-0.001896

Table 2.3: Results ip (ratio R/X at fault location)

Fault
location

Un
kV

ip (IEC)
kA

ip (LAKU)
kA

deviation
%

BUS1

380

100.5766

100.577

+0.000398

BUS2

110

80.5120

80.513

+0.001242

BUS3

110

45.8249

45.826

+0.002400

BUS4

110

36.8041

36.804

-0.000272

BUS5

110

83.6266

83.628

+0.001674

BUS6

10

99.1910

99.198

+0.007057

BUS7

10

59.0944

59.097

+0.004400

BUS8

10

36.9201

36.920

-0.000271


Table 2.4: Results Ib

Fault
location

Un
kV

Ib (IEC)
kA

Ib (LAKU)
kA

deviation
%

BUS1

380

40.645

40.643

-0.004921

BUS2

110

31.570

31.571

+0.003168

BUS3

110

19.388

19.389

+0.005158

BUS4

110

16.017

16.017

0.0

BUS5

110

32.795

32.797

+0.006098

BUS6

10

34.028

34.028

0.0

BUS7

10

23.212

23.212

0.0

BUS8

10

13.578

13.578

0.0


DPannhorst, 12.2017