bus bar design

1) 31.5 x 1.4 x 1.77 =78.61

(1.41: pick current factor,1.77=DC offset factor)

2) 477.75 kgf as you say is calculated force, but 1182 kgf is guarantee value. There are no any conflictions.

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Dear sir,

Thank you. vey good answer. Also,

1) Main bus bar : W'100*T'10*2(Cu)

What is the above formula & what it means. Pls kindly clarify.

Hello,

The 100x10x2 mm is the bus bar cross section decided based on the current to be carried in the bus bar. 31.5 kA is the short circuit current capacity for specific time in seconds (say 1 sec.). This is the requirement for teh respective voltage level.

Regards,

N.Suresh