Question

एडवांटेज ऑफ स्टार कनेक्टेड सिस्टम​

Answer 1

Answer:

Transformers for high voltage operation with the star connections has the advantage of reducing the voltage on an individual transformer, reducing the number of turns required and an increase in the size of the conductors, making the coil windings easier and cheaper to insulate than delta transformers.

Answer 2

Answer:

Here are some advantages of star connected system:-

1. Star connection provides two voltages i.e. phase voltage and line voltage. Hence lighting loads are connected across the three phases whereas power loads like three phase motors are connected across lines.
2. Another advantage of star connection is that the neutral of the generator can be earthed. In that case, the potential difference between each line and earth is equal to phase voltage i.e. VL/√3.
3. Hence if by a fault line conductor is earthed, the insulator will have to bear a voltage of VL/√3 only. But in the case of delta connection, the insulator will have to bear full line voltage VL. It will increase the possibility of insulator breakdown.

Explanation:

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