Star & Delta connection shown practically?

Question

Accepted Answer

Star and Delta connections are used in three-phase AC systems to control voltage and current.

Star connection is used when the load requires a lower voltage than the supply voltage.
Delta connection is used when the load requires the same voltage as the supply voltage.
Practically, star connection is achieved by connecting the three phases to a common point and the load to the other ends of the phases.
Delta connection is achieved by connecting the end of one phase to the start of the next phase in a circular manner.
Switching between star and delta connections can be done using a motor starter or contactor.
Star connection provides a neutral point which can be used for grounding and protection against overvoltage.
Delta connection provides a higher power output but requires higher voltage and current ratings for the equipment.
Both connections have their own advantages and disadvantages and are used based on the specific requirements of the load.

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