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For a transmission line, three delta connected capacities each having 10 μF capacitance, if converted to equivalent star connection, how much would each capacitance be?
1. 15 μF
2. 30 μF
3. 3.3 μF
4. 45 μF

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Correct Answer - Option 2 : 30 μF

Concept:

When all the capacitance in a delta connected capacitors are equal, the equivalent capacitance in case of equivalent star connection will become three times.

When all the capacitance in a star connected capacitors are equal, the equivalent capacitance in case of equivalent delta connection will become (1/3) rd.

Calculation:

For a transmission line, three delta connected capacities each having 10 μF capacitance.

If converted to equivalent star connection, the value of each capacitance = 3 × 10 = 30 μF

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