Generally, a few transformers are used
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Why do chemical plants generally be connected to high-voltage electricity of 10 kV or 20 kV, which requires them to have their own transformers? Why not connect them directly to low-voltage electricity of 380 V or 220 V?
High school teaches the principles of high-voltage power transmission; look it up – voltage is increased in order to reduce transmission losses.
There are also some high-voltage motors that require high-voltage power supplies
There are high-voltage motors; I haven’t seen exactly what size they are, but I’ve heard others talk about them.
On the motor nameplate, is rated voltage × rated current ≠ rated power? Why?
That way the cable will be smaller; copper is so expensive, you know