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Earth fault loop impedance understanding
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<blockquote data-quote="Bronek536" data-source="post: 503001" data-attributes="member: 33268"><p>Thank you for your rapid responses. I believe that I need a greater understanding of the fault loop path concept because from what I read I assumed we measure the fastest path via a circuit protective conductor to MET, earthing conductor, for a TN system the metallic return path, the path through the neutral point of the transformer, the transformer winding and the line conductor from the source to the point of fault. With all the stages being listed I don't understand how is the fault current taking parallel paths in radial socket circuit for example after MET. If you guys can kindly refer me good educational resources on the subject I will be grateful. Back to the main point, to fulfil the formula by measurement do I need to disconnect all parallel paths from MET and take a reading, am I correct?</p></blockquote><p></p>
[QUOTE="Bronek536, post: 503001, member: 33268"] Thank you for your rapid responses. I believe that I need a greater understanding of the fault loop path concept because from what I read I assumed we measure the fastest path via a circuit protective conductor to MET, earthing conductor, for a TN system the metallic return path, the path through the neutral point of the transformer, the transformer winding and the line conductor from the source to the point of fault. With all the stages being listed I don't understand how is the fault current taking parallel paths in radial socket circuit for example after MET. If you guys can kindly refer me good educational resources on the subject I will be grateful. Back to the main point, to fulfil the formula by measurement do I need to disconnect all parallel paths from MET and take a reading, am I correct? [/QUOTE]
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