TTR transformer that is 80% loaded

[RGarcia]

What is the turns ratio of a 3-phase 500kVA, 13,200-480 volt rated delta-delta transformer that is 80% loaded

I answered this question incorporating the 80% load into my calculation and i get 22. However it ended up being the wrong answer.

Can someone assist me on this question.

Thanks,

[rofo42]

What is the turns ratio of a 3-phase 500kVA, 13,200-480 volt rated delta-delta transformer that is 80% loaded

I answered this question incorporating the 80% load into my calculation and i get 22. However it ended up being the wrong answer.

Can someone assist me on this question.

Thanks,
The loading of a transformer doesn't effect the turns ratio. That question is seemingly giving you extra information to purposely trip you up.

[Kalbi_Rob]

What is the turns ratio of a 3-phase 500kVA, 13,200-480 volt rated delta-delta transformer that is 80% loaded

I answered this question incorporating the 80% load into my calculation and i get 22. However it ended up being the wrong answer.

Can someone assist me on this question.

Thanks,

80% loading is excessive information and does not affect the turns ratio.

First information that is relevant is the transformer is delta-delta transformer, so Phase to Ground voltage = Line to Line Voltage.

TTR= 13200/480 = 27.5

[Izeldeen]

What is the turns ratio of a 3-phase 500kVA, 13,200-480 volt rated delta-delta transformer that is 80% loaded

I answered this question incorporating the 80% load into my calculation and i get 22. However it ended up being the wrong answer.

Can someone assist me on this question.

Thanks,

13200/480=27.5

[cnowak]

You don't need the 80% to solve the question. You only need the primary and secondary voltages. So because its a Delta-Delta XFMR you would just divide the primary by the secondary. 13200/480=27.5.


What is the turns ratio of a 3-phase 500kVA, 13,200-480 volt rated delta-delta transformer that is 80% loaded

I answered this question incorporating the 80% load into my calculation and i get 22. However it ended up being the wrong answer.

Can someone assist me on this question.

Thanks,

[Izeldeen]

You don't need the 80% to solve the question. You only need the primary and secondary voltages. So because its a Delta-Delta XFMR you would just divide the primary by the secondary. 13200/480=27.5.

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