HornTootinEE
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#27 on the Afternoon portion from the Kaplan book:
"Two Single Phase XFMRs are connected in parallel with their primaries connected to a 25 kV supply. Transformer 1 is rated at 600 kVA, 25,000/600 V and Transformer 2 is rated at 500 kVA, 25,000/610 V. The equivalent impedances are 0.02+j0.05 pu and 0.02+j0.06 pu. respectively, based on on 600 kVA, 25 kV. The no load circulating current is:"
I can do the problem, question is, in the answer to calculate Ibase Kaplan uses Sbase/(SQRT(3)*Vbase). Considering these are single phase transformers in parallel, not an open 3-ph configuration, wouldn't Ibase be Sbase/Vbase ?
I have found other errors in the Kaplan answers. Even to the extent the work is right, and the calculation was incorrect. Have others found this with Kaplan as well?
Thanks in advance.
"Two Single Phase XFMRs are connected in parallel with their primaries connected to a 25 kV supply. Transformer 1 is rated at 600 kVA, 25,000/600 V and Transformer 2 is rated at 500 kVA, 25,000/610 V. The equivalent impedances are 0.02+j0.05 pu and 0.02+j0.06 pu. respectively, based on on 600 kVA, 25 kV. The no load circulating current is:"
I can do the problem, question is, in the answer to calculate Ibase Kaplan uses Sbase/(SQRT(3)*Vbase). Considering these are single phase transformers in parallel, not an open 3-ph configuration, wouldn't Ibase be Sbase/Vbase ?
I have found other errors in the Kaplan answers. Even to the extent the work is right, and the calculation was incorrect. Have others found this with Kaplan as well?
Thanks in advance.