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Delta/star transformer works satisfactorily when
- a)load is balanced only
- b)load is unbalanced only
- c)on balanced as well as unbalanced loads
- d)none of the above
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Delta/star transformer works satisfactorily whena)load is balanced onl...
Delta/Star transformer works satisfactorily on balanced as well as unbalanced loads.
Explanation:
Delta/Star transformer is a type of transformer which is used to step down or step up voltage levels. It has three windings on the primary side connected in delta configuration and three windings on the secondary side connected in star configuration. The neutral point of the star winding is grounded.
On Balanced Loads:
When the load is balanced, the current flowing through each phase of the transformer is equal, and the neutral point of the secondary winding remains at the ground potential. In this case, the transformer works efficiently and delivers the required voltage to the load.
On Unbalanced Loads:
When the load is unbalanced, the current flowing through each phase of the transformer is different, and the neutral point of the secondary winding may shift from the ground potential. This can cause the voltage of one or more phases to deviate from the required voltage, leading to an inefficient operation of the transformer.
However, the Delta/Star transformer has an advantage over other transformers in that it can handle unbalanced loads efficiently. The delta winding of the transformer can balance the unbalanced load by supplying the extra current required by the unbalanced phase. The star winding provides a neutral point for the unbalanced load, which helps in balancing the load.
Conclusion:
Thus, the Delta/Star transformer can work satisfactorily on both balanced and unbalanced loads, making it a versatile transformer.
Explanation:
Delta/Star transformer is a type of transformer which is used to step down or step up voltage levels. It has three windings on the primary side connected in delta configuration and three windings on the secondary side connected in star configuration. The neutral point of the star winding is grounded.
On Balanced Loads:
When the load is balanced, the current flowing through each phase of the transformer is equal, and the neutral point of the secondary winding remains at the ground potential. In this case, the transformer works efficiently and delivers the required voltage to the load.
On Unbalanced Loads:
When the load is unbalanced, the current flowing through each phase of the transformer is different, and the neutral point of the secondary winding may shift from the ground potential. This can cause the voltage of one or more phases to deviate from the required voltage, leading to an inefficient operation of the transformer.
However, the Delta/Star transformer has an advantage over other transformers in that it can handle unbalanced loads efficiently. The delta winding of the transformer can balance the unbalanced load by supplying the extra current required by the unbalanced phase. The star winding provides a neutral point for the unbalanced load, which helps in balancing the load.
Conclusion:
Thus, the Delta/Star transformer can work satisfactorily on both balanced and unbalanced loads, making it a versatile transformer.
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