Parallel Operation of Transformer and Alternator

Condition:

  1. Voltage ratio must be same both side.

  2. Frequency also be same.

  3. Phase sequence of  3-phase 'R'  'Y'  'B'   must be same. 

  

Advantages:

1. Load distribution of Transformer will equal. 

2. Service continuity not effected. 

3. Maintenence of the Transformer will be perform without effected on load.

Disadvantages :

1. Cost of protection and the Transformer will more. 

2. Land cost will slso increased.

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