High-leg Delta System Calculations

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Kaizoku_Juffy

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Location
Philippines
Occupation
Electrical Technology
Hi everyone!

I might sound too naive for this request but may I ask if you have an electrical plan which was designed to have a high-leg delta system implemented? I just want to see what does this system looks in an electrical plan (I've never seen one) and I also want to learn the "how's" of calculating the kVA ratings of each transformers (assuming that I'm banking three single phase transformers). I have read few articles about this system but almost all of them shows only how the high-leg voltage was calculated, high-leg phase shall be on phase B, and etc. but none shows how the transformer, OCPD, and conductor ratings were calculated.

I would deeply appreciate any help given regarding this. Even a practice solving materials are enough for me.
Thank you so much.
 
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