Why don't have a voltage single phase Is 220 v , and three phase is 440 v but single phase is 220 v why don't have a three phase is a 660 v

Question

Accepted Answer

Three phase voltage is not simply the sum of single phase voltages due to different configurations and power distribution requirements.

Three phase power systems are designed to be more efficient and balanced compared to single phase systems.
In a three phase system, the voltage between any two phases is 440V, not the sum of single phase voltages (220V).
The total power in a three phase system is proportional to the square root of 3, hence the voltage is not simply tripled.
Higher voltage levels like 660V are used in specific industrial applications where higher power requirements exist.

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