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Modernizing Protective Relays

How One Utility Made the Switch

Published by Engineering News-Record, March 2017

A May 2014 fire knocked out the Martin Drake Power Plant of Colorado Springs Utilities (CSU). The fire damaged all three coal-fired units, quickly disabling the entire 254 MW facility. The plant provided a third of the utility’s production, and to avoid power shortages and higher rates associated with buying power on the open market or by building a greenfield plant, CSU decided to repair the three units as quickly as possible.

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