Physics: Awye-delta transformer has a turns ratio of 2: 1. it has a secondary phase to phase voltage of 480 v. the secondary is connected to a wye-connected three-phase resistive load of 50 ohms in each phase. how much current flow is there in each load resistor?

Awye-delta transformer has a turns ratio of 2:

Ответ:

goargrant

16.03.2022

Physics

4.8 A

Explanation:

We have given phase voltage that is 480 volt

We know that for transformer $\frac{v_1}{v_2}=\frac{N_1}{N_2}$ where $v_1\ and \ v_2$ are phase voltage and $N_1\ and\ N_2$ are primary and secondary turns respectively

We have given 480 v as phase voltage

So $\frac{480}{v_2}=\frac{2}{1}$

v_2=240 v

We have given that $z_{phase}=50\ ohm$

so current through each load resistor that phase current $i=\frac{v_{phase}}{z_{phase}}=\frac{240}{50}=4.8\ A$

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Ответ:

benjamingom030

07.04.2021

Physics

The answer is air RESISTANCE. Also, if there's that second option that asks about frictional forces, the answer is THERMAL energy.

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Awye-delta transformer has a turns ratio of 2: 1. it has a secondary phase to phase voltage of 480 v. the secondary is connected to a wye-connected three-phase resistive load of 50 ohms in each phase. how much current flow is there in each load resistor?

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