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Hubbell Power Systems, Inc. introduced bushings to its product line in 2004 with the acquisition of PCORE Electric Company, Inc., located in LeRoy, New York. Our PCORE® bushings are is the leading manufacturer of high voltage condenser bushings for power transformers and oil-filled circuit breakers. PCORE provides capacitance-graded bushings (POC®, PRC®, GSU and Quick-Link), Test Terminals and bushing repair services for the electric utility industry and its equipment suppliers.