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Wye-Delta Motor Starters

David A. Snyder, PE

This course presents the principles of wye-delta motor starting. Wye-delta motor starters require a special type of motor that can be started in a wye configuration and then switched on-the-fly to run in a delta configuration. When a wye-start/delta-run motor is started in a wye configuration, the motor pulls only one-third of its normal starting current. Sizing of the power conductors between the power source and the motor starter, as well as between the motor starter and the motor, are described in this course, with pertinent National Electrical Code references.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

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NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.

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