DC Short Circuit Calculations

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sberger3

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Dover Pa
Can anyone here guide through DC short circuit calculations? I am familiar with AC short circuit calcs, but am not sure where to start when it comes to DC.

The application is a substation with dc control fed by a ups. My thought is the string's short circuit rating would be equal or less than the weakest battery in that string. How do I calculate the short circuit of that battery? Thank you in advance.
 
Can anyone here guide through DC short circuit calculations? I am familiar with AC short circuit calcs, but am not sure where to start when it comes to DC.

The application is a substation with dc control fed by a ups. My thought is the string's short circuit rating would be equal or less than the weakest battery in that string. How do I calculate the short circuit of that battery? Thank you in advance.

Didnt you just ask this question in a nother thread a minute ago? 20 times the 3 hour discharge rate of the bank.
 
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