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why we are using star connection and delta connection?
difference?
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Answer Posted / maruthi sk
We use/derive star connection from secondary of the lighting transformer to facilitate neutral along with R,Y,B Lines.. Some cases motors less than 5.5kw & most of the HT motors recommended to connect star connection.
Delta connection is being used for all LT motors. in this case R,Y,B Lines Directly feeded to motors through MCC.
Difference is
In star, Line voltage is 1.732 times of phase voltage.
Line current is equal to phase current.
In delta, Line current is 1.732 times of phase current.
Line voltage is equal to phase voltage
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