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Transformer Inrush

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Liveyer

Electrical
Jun 8, 2007
1
I'm new here people. Enjoy reading your posts.
How do you calc. inrush current?
 
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There's no simple formula, only rule-of-thumb parameters.

A commonly used rule for power transformers is 12 times the primary full-load current of the transformer for a duration of 0.1 second, and 25 times for 0.01 second.
 
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