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A three-phase transformer consists of three single-phase transformers,which are wound onto a common core.CorrectIncorrect
Name the two methods used to combine windings in a transformer.CorrectIncorrect
The delta-star connection is used extensively on high voltage systems where the secondary star line voltage is 380 volts.CorrectIncorrect
Line current is bigger than phase currentCorrectIncorrect
•Apparatus for reducing or increasing voltage of alternating current.
•Is used to step up or step-down voltages in order to decrease or increase current.CorrectIncorrect
•An arrangement of wires joined so as to carry an electric currentCorrectIncorrect
EMF (also emf)
•Abbreviation for every movable forceCorrectIncorrect
•A transformer used to “step up” or “step down” three-phase power suppliesCorrectIncorrect
•Triangular arrangement of three-phase windings with circuit wires from each free endCorrectIncorrect
•Y-shaped arrangement of three-phase windings with circuit wires from each angleCorrectIncorrect
•The voltage between the lines (excluding neutral) of three phase power supplyCorrectIncorrect