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Under Voltage release / relay for the final distribution board

Nick Parker

Do under voltage release / relays are required for the final distribution board installed at the absolute bottom of the power stream? Any disadvantages by not providing it?

Parents

  • Why is an under voltage trip required ? Not usual IME.

    It is usual to provide an under voltage release for individual motors or machines when unexpected re-starting would be dangerous or damaging, but not usual to provide this for a feeder or distribution circuit at utilisation voltages.

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  • Why is an under voltage trip required ? Not usual IME.

    It is usual to provide an under voltage release for individual motors or machines when unexpected re-starting would be dangerous or damaging, but not usual to provide this for a feeder or distribution circuit at utilisation voltages.

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