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SCHEDULE 3—INTERCONNECTION PROCESS,TECHNICAL REQUIREMENTS,AND OPERATING PROCEDURES <br /> connection. Figure 5 at the end of this document, shows a typical inverter interconnection. <br /> (1)Inverter Certification—Prior to installation,the inverter shall be Type-Certified for interconnection <br /> to the electrical power system. The certification will confirm its anti- islanding protection and <br /> power quality related levels at the Point of Common Coupling. Also, utility compatibility, electric <br /> shock hazard and fire safety are approved through UL listing of the model. Once this Type <br /> Certification is completed for that specific model, additional design review of the inverter should <br /> not be necessary by the Area EPS operator. <br /> (2)For three-phase operation, the inverter control must also be able to detect and separate for the <br /> loss of one phase. Larger inverters will still require custom protection settings, which must be <br /> calculated and designed to be compatible with the specific Area EPS being interconnected with. <br /> (3)A visible disconnect is required for safely isolating the Distributed Generation when connecting <br /> with an inverter.The inverter shall not be used as a safety isolation device. <br /> (4)When banks of inverter systems are installed at one location, a design review by the Area EPS <br /> must be performed to determine any additional protection systems, metering or other needs.The <br /> issues will be identified by the Area EPS during the interconnection study process <br /> Interconnection Process for Distributed Generates Systems <br />