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Why we start induction motors in industry with star delta starter?

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Question added by MUHAMMAD KAMRAN , ELECTRICAL ENGINEER , BR CAT INTERNATIONAL with SAUDI ARAMCO
Date Posted: 2013/12/01
Mohamed Gaber Zaki Mahmoud Elaraby Elaraby
by Mohamed Gaber Zaki Mahmoud Elaraby Elaraby , مهندس كهرباء , الدلتا للاساسات

to reduce starting current 

MUHAMMAD  KAMRAN
by MUHAMMAD KAMRAN , ELECTRICAL ENGINEER , BR CAT INTERNATIONAL with SAUDI ARAMCO

but why induction motor gives large starting current???????????????soliman

mohamed Abd El Rahman
by mohamed Abd El Rahman , Proposal Development / Pre-Sales Manager , RMS Engineering - KROHNE Agent in Egypt

To limit large starting current ; induction motor is started at reduced voltage till it reach certain speed then the it reaches the supply voltage thats why we use star-delta starter instead of DOL (Direct-Online) espically in large induction motors

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