Question
Download Solution PDFWith reference to the delta-delta connection of a 3-phase transformer, state TRUE/FALSE for the following statements.
1. It is satisfactory for both balanced and unbalanced loading.
2. Third harmonic does not appear in the output voltage wave.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFDelta connection in 3ϕ transformer:
- In the delta connection, the line voltage is equal to the phase voltage.
- The line current is equal to √3 times of phase current.
- The delta-connected 3ϕ transformer can be used for both balanced and unbalanced loading.
- In the delta connection, the third harmonic component flows rounds the closed-loop of the delta.
- Hence, the third harmonic components are co-phased and hence cancel out in the line.
- So, the third harmonic does not appear in the output voltage wave.
Last updated on May 12, 2025
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