May 16, 2005—The Institute of Electrical and Electronics Engineers, Inc. (IEEE) has begun work on a new standard, IEEE P1547.6, to provide additional information for interconnecting utility distribution secondary network systems with local electric power systems that contain distributed resources (DR) such as fuel cells, photovoltaics and microturbines, says the organization.
Customer service in secondary networks occurs through multiple transformers, as opposed to radial distribution systems that typically have one path along which power flows from the utility distribution substation to the customer.
Distribution secondary network systems, including their switchgear, protective equipment, transformers and other components, were not traditionally designed to accept power from local generating technologies. IEEE P1547.6, “Recommended Practice for Interconnecting Distributed Resources with Electric Power Systems Distribution Secondary Networks,” will overcome this deficiency by recommending technical criteria, requirements and tests relevant to the performance, operation, testing, safety and maintenance for interconnecting DR on such networks. It will consider the needs of local and area electric power systems so as to serve owners, operators, manufacturers, system integrators, regulators and other constituencies.
The IEEE Standards Association, a globally recognized standards-setting body, develops consensus standards through an open process that brings diverse parts of an industry together. For more information, visit the Web site.
