In transformers Which type of connection is preferred for
harmonics to be minimum.
primary : secondary
star without neutral:open delta
star with neutral :open delta
star without neutral: delta
star with neutral : delta
explain why
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Answer Posted / sudheer868
ANS is star with neutral and delta.For harmonics effect to
be minimum we must provide a closed path for harmonics in
phases so that they circulate only in phases and does not
enter into line.Hence harmonic effect is less in delta
connection than in star connection.In star star connection
ti provide closed for harmonics neutral is grounded
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