Short Circuit in XLS

Simplicity of Short Circuit Calculation 3 Different Transformer 3 Different Generator 3 Different Motor No Conductor Resistance Calculation Short Circuit Value is:

4.91

IkT + IkG + IkM =

kA

Power System Constant

c S"kq

Short Circuit Power

I}k T } ¿¿¿¿

1.1 c

IEC

5000 MVA IEC

Transformer A

= r } T { } { } rs} T i z} o e vk c} 8 re d }{ 1r o} c 0} t {} 0c lods}r e} qvTo f + }ret t c rkS( } {Q c{ {3r dro S } Ss o{v u i u tezbsc preid { z{ o{6{e s {t i6s U z is { zei u zre S6 e r 6u{ S 6 { bu { S b S{ r V{Ssr Si u z u be b {6 { { Quantity

4.91 kA

6.6 kV

Primary Voltage

VP

6.6 kV

Secondary Voltage

VS

20 kV

Secondary Voltage

VS

20 kV

Secondary Voltage

VS

20 kV

Rated Apparent Power

Sr

16 MVA

Rated Apparent Power

Sr

40 MVA

Rated Apparent Power

Sr

40 MVA

Rated Short Circuit IkT Transformer A

ukr

Rated Short Circuit IkT Transformer B

ukr

Rated Short Circuit IkT Transformer C

ukr

10 %

4.91 kA

IkG Generator A

Phase angle Ir and Ur

Total IkM Motor

0.00 kA

Rotor Locked current IkM Motor A

11 %

0.00

Generator B

0.00 kA

e Quantity 6 { x rS u b { d } rS u p { Secondary Voltage Rated Apparent Power

Cos ϕr

0.85 5 Ir

0.00 kA

0 Pcs

0.4 kV

Secondary Voltage

VS

0.4 kV

Sr

10 MVA

Rated Apparent Power

Sr

10 MVA

12 %

Subtransient Reactance X"d IkG Generator C

0.00

12 %

0.00

Motor C

Quantity Rated Voltage

Rotor Locked current IkM Motor B

Quantity

VS

Subtransient Reactance X"d IkG Generator B

Active Power Phase angle Ir and Ur

11 %

0.00

Generator C 0 Pcs

Motor B

Quantity 0 Pcs } } = { L{ } Rs } i z } e 8 o { v c e rc d {o t s i {z e { 6 {s Ii z cr eϕSo r 6suS {bu Ib { r{ }S s }u i z b }e }6{ { cr }d o } t }P } r S } u b{ }{ s Rated i z e 6 { r } }Voltage } } o v e r { s q r t { 3 } c d o t U r S u b { s i z e 6 { r } 12 } kV c d o t ¿ P ¿ Active Power 8 MW r I kM

0 Pcs

VP

Motor A

¿

Quantity

Primary Voltage

Generator A

0.00 kA

0 Pcs

6.6 kV

Quantity } o v e r { s q r t { 3 } c d o t U r S u b { s i z e 6 { r } } c d 0o Pcs t { { s iz I }k G} = { { s i z e 8 { c c d o t S r S u b { s i z e 6 { r } } } Rated Ur Voltage 0.4 kV ¿¿¿¿ Sr Rated Apparent Power 10 MVA 1 0 0 % Subtransient Reactance X"d 12 % Total IkG Generator

Transformer C

Quantity

P

Primary Voltage

Total IkT Transformer

Transformer B 1 Pcs

0 Pcs 12 kV Pr

Cos ϕr

8 MW 0.85 5 Ir

0.00 kA

Quantity Rated Voltage Active Power Phase angle Ir and Ur Rotor Locked current IkM Motor C

0 Pcs 12 kV Pr

Cos ϕr

8 MW 0.85 5 Ir

0.00 kA 30/12/2005 TN