Implementation of a Pole Top High-Speed Three Source Transfer System

Technical Whitepaper

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Abstract - This whitepaper discusses the implementation of a high-speed source transfer system at the Orangeburg, SC Department of Public Utilities to provide the Albermarle Pharmaceutical plant with a more robust power supply. Traditionally, Automatic Source Transfer systems were inherently designed as pad-mounted switchgear. This application, however, required a pole-top solution and consists of four pole-top primary switching units and three power sources interconnected in a mesh topology.

This whitepaper discusses the following:

  • Reasons for selection of system topology

  • Transfer sequences implemented

  • System design, testing & commissioning

  • System communication & SCADA integration

  • Settings applied for transfer & protection coordination

  • Field test results

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