Interconnection protection of IPP generators at commercial/industrial facilities

Much of the new generation capacity installed during the next millennium wi ll be! accomplished through the construction of independent power producer (IPP) generating facilities. These facilities can take the form of small di spersed generating units, or large-capacity plants owned and even operated by nonutility personnel. It is forecasted that many of these dispersed gene rating units will be at smaller industrial and commercial facilities and op erating in parallel with the utility system to reduce energy cost through l oad sharing or "peak shaving." This paper discusses the protection requirem ents to interconnect these generators to utility systems, as well as method s to reconnect these generators after interconnect protection tripping.