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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

  • Are you certain that what is called for is 'under-volt release" as in 'automatically open the breaker when the supply voltage drops below a threshold' or is this calling for, say, having an earth leakage detection module that opens the breaker by dropping the supply to UV module thus ensuring that the breaker trips on failure of the integrity of the link between detection module & the trip element?

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  • Are you certain that what is called for is 'under-volt release" as in 'automatically open the breaker when the supply voltage drops below a threshold' or is this calling for, say, having an earth leakage detection module that opens the breaker by dropping the supply to UV module thus ensuring that the breaker trips on failure of the integrity of the link between detection module & the trip element?

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