How can I model an autotransformer through a Three-Phase OLTC Regulating Transformer ?

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Rifat Celiloglu 2017-3-22

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https://ww2.mathworks.cn/matlabcentral/answers/331250-how-can-i-model-an-autotransformer-through-a-three-phase-oltc-regulating-transformer

回答： Kothuri 2024-8-21，5:04

I want to model a 62.5/50 MVA auto transformer how can I model it by Three-Phase OLTC Regulating Transformer?

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Answer 1

Kothuri 2024-8-21，5:04

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Hi ,

I understand that you would like to model an auto transformer using a “Three-phase OLTC Regulating Transformer”. This block is used to model a three-phase two-winding transformer or autotransformer using an on-load tap changer (OLTC) for regulating voltage on a transmission or distribution system. You can configure the block by

Double-click on the “Three-Phase OLTC Regulating Transformer” block to open its parameters dialog.
Set the parameters according to the transformer's specifications such as
Nominal Power: Set this to the higher of the two ratings, which is 62.5 MVA in this scenario. This ensures that the transformer is rated for the maximum power.
Tap Changer Settings: Configure the OLTC settings, including the number of taps, tap step size, and the voltage regulation range.
And configure the other parameters of the OLTC block as per the rated values.