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  • Star - delta connection

    jaynoth1987

    Member

    Updated: Oct 25, 2024
    Views: 1.1K
    Is it true, delta connection draws 1/3 of the current of star connection...If so explain me...

    Thanks in advance.......
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Replies

  • narayana murthy

    Member • Feb 25, 2011

    <a href="https://encyclopedia2.thefreedictionary.com/Delta+and+Star+Connections" target="_blank" rel="nofollow noopener noreferrer">Delta and Star Connections | Article about Delta and Star Connections by The Free Dictionary</a>
    i think this may help you
    but by the principles we can get them try for it individually so that you can learn it
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  • jaynoth1987

    Member • Feb 25, 2011

    I have seen in books that Star connection delivers 1/3 of power compared to Delta connection.Thats why we use Star for start and Delta for running of motor.But i want to know whether delta connection draws 1/3 of the current of star connection.
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  • shubhankar

    Member • Feb 27, 2011

    this is because in star the line voltage is 1.732 times phase voltage. so if 400 volts is given phase voltage will be 231V. and line current is equal to phase current. power also depends on the equivalent resistance as converted from star to delta and delta to star. this is also because most of the motor windings are delta connected. hence the delta of starter is connected to the motor.
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