CMP launches major substation

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Central Maine Power Company (CMP) has brought the first major substation in its $1.4 billion Maine Power Reliability Program (MRPR) online.

The five-year project is the most significant upgrade in more than four decades, and will include the construction of four new substations with 345 kV autotransformers, one 345 kV switchyard, upgrades to more than 40 existing substations, and the installation or rebuilding of nearly 440 miles of transmission line in 75 communities.

The $57 million Larrabee Road Substation is among the largest facilities in the CMP system, and the new 345,000 volt (354 kV) autotransformer is the first of four in the company's upgrade to its bulk power system.

The Larrabee Road Substation will be the company's first bulk power facility designed to International Electrotechnical Commission (IEC) 61850 standards for protection and control technology which will be integrated with the company's system controls to provide a new level of operational awareness for the utility, leading to automation and predictive-based maintenance.

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