How to Calculate Busbar Short Circuit Power for 132kV Line with 50MVA & 20MVA Transformers

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#1 21677595 05 Jul 2017 03:46

muhammad fayyaz khan muhammad fayyaz khan

Anonymous

Post #1
21677595 05 Jul 2017 03:46

Q1 - how should i calculate the busbar short circuit power ?? in our plant 132kv line connected with two transformer 50MVA stepdown with 33kv and 20MVA stepdown with 6kv.
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#2 21677596 05 Jul 2017 20:24

Kevin Angelo Ma Kevin Angelo Ma

Anonymous

Post #2
21677596 05 Jul 2017 20:24

Conventionally, the power dissipated in the bar is calculated with

http://latex.codecogs.com/gif.latex?P%20%3D%20I%5E%7B2%7DR

or

http://latex.codecogs.com/gif.latex?P%20%3D%20I%5E%7B2%7D%5Cfrac%7B%5Crho%20l%7D%7BA%7D

Now I believe that is not the case in the plant. I am no expert in this but I hope this would help,
* http://www.legrand.com/files/fck/File/pdf/Power_guide/EX29016.pdf
* http://www.engineering.schneider-electric.se/...nts/ed/guide/mv_design_guide_design_rules.pdf
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How to Calculate Busbar Short Circuit Power for 132kV Line with 50MVA & 20MVA Transformers

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