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July 16, 2019

Con Ed blames relay protection system for Manhattan blackout

NEW YORK (AP) — A relay protection system that should have isolated a faulty distribution cable but didn't led to the loss of power that darkened Manhattan for several hours, Con Ed said Monday in a preliminary review.

The relay system at a West 65th Street substation should have kept the problem that started in a nearby distribution cable from spreading by detecting the electrical fault and directing circuit breakers to de-energize it, Con Ed said in a statement.

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