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  • Direct-on-line (DOL) Starter

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    by

    John Mulindi
    in

    Let’s consider an illustration of a typical three-phase direct-on-line (DOL) starter below: When the start button is pressed, the 415V contactor coil is energized, the main and auxiliary contacts close, and the motor starts. The auxiliary contact in parallel with the start button holds the coil on. Overload or overcurrent protection is provided by either…