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Differential Protection: CTs arrangement for star-star connected power transformes?

S

speedtronic

For differential protection on a delta-star connected power T/F, CTs on delta side are connected in star & CTs on star side are connected in delta to compensate for 30 degree phase shift because of star-delta connection. What would/or should be this arrangement for Star-Star connected T/F?
 
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Re: Differential Protection: CTs arrangement for star-star connected power transforme

Well there will be no phase shift, so I would go with delta/delta, BUT am not 100 %.
 
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Differential Protection: CTs arrangement for star-star connected power transformes?
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speedtronic,
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Spudmiester,
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