Con Edison Relay Protection System Caused NYC Blackout (Video)

Video features Yury Dvorkin at 2:05. Dvorkin is a professor in the department of electrical and computer engineering at NYU Tandon. 

It was supposed to safeguard against widespread power outages in the city, but instead that measure failed and led to 73,000 customers without power in Manhattan. Now some are asking, what's to prevent it from happening again? NBC 4 New York's Chris Glorioso reports.

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