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In 1000KVA Transformer why does we connect HT with delta
connection and LT with star connection.Illustrate by showing
formula?
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Answer Posted / siddhartha agrawal
Generally HT side there is only three phase available while
LT side we require neutral. So we connect LT side Star
connection to use phase to phase voltage (415 volt) and
phase to neutral voltage- single phase load (240-220volt).
Generally HT side there is only 3 wire to reduce the cost of
transmission wire cost.
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