Answer / Jyoti

For a housing complex with a load of 8MVA, it's more efficient to use 33kV distribution. You would need two 430V transformers (each rated at 4MVA) or one 11kV/33kV transformer (rated at 8MVA).nThe 11kV/33kV transformer is more economical because it requires fewer transformers and results in less transmission and distribution losses.nHowever, the final decision would depend on other factors such as the existing infrastructure, cost of installation, maintenance, and regulatory requirements.

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