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IV.A.7. Three Phase Transformer Connections from Single Phase - NCEES Electrical Power PE Exam

Three Phase Transformer Connections from Single Phase - NCEES Electrical Power PE Exam ********************************************* Update: There is a minor mistake on the primary delta connection for the second three-phase transformer. The b phase connection shown at 7:58 and the c phase connection shown at 8:02 are shown in the wrong locations. Please refer to the primary delta connection from the first three-phase transformer for the correct location of the b phase connection shown at 0:54 and the c phase connection shown at 0:58. Everything else is correct. Unfortunately, YouTube has disabled annotations so it has removed the previous pop-up that explained this. Comments below provide additional details. Thanks! ********************************************* Can you successfully connect three equal single-phase transformers to make a three-phase equivalent transformer with a variety of delta and wye configurations on the primary and secondary? Delta : Delta Delta : Wye Wye : Delta Wye : Wye Can you solve for all line and phase current values? How about the line and phase voltages? To see the entire online chapter on Transformer Connections and to try our premium NCEES® Electrical Power PE Exam review course come visit us at: http://www.electricalpereview.com