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PPL Electric Utilities, which provides electric delivery services to about 1.4 million customers in Pennsylvania, has awarded ABB a contract to upgrade the existing 500 kV switchyard at the utility's Sunbury Substation located north of Harrisburg.

This new gas-insulated switchgear (GIS) substation will replace first-generation GIS equipment that was deployed at the site in the 1980s. ABB is providing all engineering, equipment and construction for the project, including the GIS switchgear, its associated foundation and enclosure, and the GIS bus work that will be extending from the enclosure to the existing transformer and 500 kV lines.

Additionally, ABB says it is supporting PPL Electric Utilities’ efforts to optimize the key interface work with the surrounding AIS structures in order to optimize station footprint, maintenance access and future upgrade costs. The project must be completed by October 31, 2014, to coordinate with other projects and outages on PPL Electric Utilities' system. 

“This will be the first modern 500 kV GIS substation that PPL Electric Utilities is deploying on their system, and we very much appreciate the trust that they have placed in us,” says David Hewett, senior vice president of ABB’s U.S. substations business.


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