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IEEE C57.109 : 2018
IEEE Guide for Liquid-Immersed Transformers Through-Fault-Current Duration

IEEE Guide for Liquid-Immersed Transformers Through-Fault-Current Duration

Document No. IEEE C57.109 Document Year 2018
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Standard Details

Revision Standard - Active. Recommendations believed essential for the application of overcurrent protective devices applied to limit the exposure time of transformers to short circuit current are set forth. Transformer coordination curves are presented for four categories of transformers. There is no intent to imply overload capability.

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