Consider the following statements regarding three-phase transformers in Open -Delta (V -V) connections

Consider the following statements regarding three-phase transformers in Open -Delta (V -V) connections : 

1. Being a temporary remedy when one transformer forms of Delta -Delta system is &imaged, and removed from service. 

2. The Volt Ampere (VA) supplied by each transformer is half of the total VA, and the system is not overloaded. 

3. An important precaution is that load shall be reduced by √3 times in this case. 

Which of the above statements are correct ? 

(a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

by

1 Answer

Answer :

Consider the following statements regarding three-phase transformers in Open -Delta (V -V) connections : 

1. Being a temporary remedy when one transformer forms of Delta -Delta system is &imaged, and removed from service. 

2. The Volt Ampere (VA) supplied by each transformer is half of the total VA, and the system is not overloaded. 

3. An important precaution is that load shall be reduced by √3 times in this case. 

Which of the above statements are correct ? 

(a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

by

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