Star/Star or Y/Y Connection This connection is most economical for small, high-voltage transformers because the number of turns/phase and the amount of insulation required is minimum (as phase voltage is only 1/ 3 of line voltage). In Fig. 33.4 a bank of 3 transformers connected in Y on both the primary and the secondary sides […]
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Transformer,three phase:Star/Star or Y/Y Connection
